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What is interaction science? Revisiting the aims and scope of JoIS
Journal of Interaction Science volume 4, Article number: 2 (2016)
Interaction Science has undergone rapid development since JoIS’ (the Journal of Interaction Science) founding in 2013. The advent of novel techniques and tools required reviewing the understanding of Interaction Science and the scope and aims of JoIS. More particularly, the set of methods and frameworks needed to be revisited and checked against the characteristics of today’s ecological system and the resulting requirements for developing socio-technical systems. In this editorial, we tackle the interdisciplinary nature of Human-Computer-Interaction, the different thematic areas in Interaction Science, and diverse scientific research methods (and methodologies). We also examine the JoIS articles published so far, in order to provide a sound baseline for re-defining Interaction Science and update the mission of JoIS accordingly. The newly proposed definition of Interaction Science explicitly takes into account diversity and transdisciplinarity of interactional phenomena. We recognize the action space of Interaction Science being complex and ever-changing, and thus opt for wide generalization. Such way, the interaction is considered as the exchange of material or immaterial goods between acting parties (biological or technical entities) embodied in a certain context. Regarding scientific methodology, one of the important proposals relevant to JoIS is to relax emphasize on the use of empirical investigation based on traditional laboratory experiment. Traditional laboratory empiricism (usually empowered by statistics and hypothesis testing) is too restrictive to exclusively represent JoIS’ aims and scope, so we make way to complementary methods such as modeling, simulation, case studies, and design as science. By acknowledging studies of new methodologies, metrics and measurements, as well as work grounded in theories and applications, we ask for future contributors to stay committed to the TEAM (Theory advancement, Empirical advancement, Applied advancement, Methodological advancements) approach. We finally anticipate for the next decade Interaction Science will progressively integrate its scientific concerns with the engineering goal of improving the interactive design of socio-technical systems, resulting in a body of transdisciplinary knowledge and methodology. Interaction Science continues to provide a challenging test domain for applying and developing psychological and social theory in the context of technology development and use.
When the Journal of interaction Science started, the founding editor-in-chief, Gisela Susanne Bahr, wrote in the inaugural editorialFootnote 1.
“… JoIS is grounded in empiricism and employs the best of psychology, its experimental methodology and statistics. We believe that rigorous research methodology is the marlin spike that can unravel the convoluted knot of interactions between humans and the technologies that they have created. Our goal is to attract and publish scientific investigations of human interactions with modern technologies, including their potential for bringing about change, their limitations, their benefits, their consequences and their broader impact.
It follows that the definition of what we do is in the papers we publish: JoIS and its authors advance interaction science using the TEAM approach: Theory advancement, Empirical advancement, Applied advancement, Methodological advancements.”
When Chris Stary joined JoIS as co-editor in chief one of the conversation topics of the editorial team has been whether experimental empiricism is too restrictive to represent JoIS’ aims and scope. Should JoIS be more inclusive of other ways to conduct scientific investigations and relax the emphasis on the use of traditional laboratory experiments? The two editors decided to put the editorial to the test and evaluate the statement, “the definition of what we do is in the papers we publish.” The challenge is whether they can agree on a definition for Interaction Science based on the JoIS publications to date. In the end, our different perspectives converge on a shared vision and the answer is “yes”.
The discussion has been influenced by recent contributions in the field of Human Computer Interaction (HCI). For example, Howes et al.  address the role of science in HCI, and state that scientific contributions in the field of HCI have been partially informed by techniques and findings from the behavioral sciences and computer science. Their observation conveys the interdisciplinary nature of Interaction Sciences and hints to the emerging complexity. With this in mind, several challenges emerge. For example, how can we satisfy the necessity to structure the diverse field of Interaction Science studies? Moreover, what is the relation between science and design? Designing and prototyping studies make creative and technical assumptions that fall outside the scope of laboratory study. Hence, ‘the imperative for “design implications” can mediate against scientific values and against high risk work on hard problems.’ (ibid., p. 1129). One might conceptualize the imperative for design implications as a non-empirical way to reduce the degrees of freedom when solving a complex problem, such as designing interaction solutions for computer assisted design or emotive health-care robots.
The implications of design decisions are not trivial but shape and determine products; however, they are necessary because the empirical investigation of every variable at every possible value is impossible. The concept of the design decision is not a modern term but traceable through the centuries. For example, Johannes Gutenberg has been credited for making design decisions as well as technical innovations that led to variations in the composition, presswork and decoration evident in the surviving paper and vellum Gutenberg bibles (http://www.themorgan.org/collection/Gutenberg-Bible). Imagine a classic laboratory study that requires four independent variables each with two, three, two and four levels respectively, on an unknown number of dependent variables (metrics).
A sample experiment with such a factorial design might be an HCI study comparing expert and novice users (factor 1) using touch, auditory or visual interfaces (factor 2), performing task of high or low difficulty (factor 3) and receiving one of four types of user feedback (factor 4). The feedback option may be none, same modality as the interface condition, and two incongruent types of feedback selected from auditory, visual or haptic feedback. Regardless of a between- or within-subjects design, the rule of thumb without power analysis is that 25–30 participants per condition are needed to reveal significant effects.
The design described involves 48 conditions, which requires (48*25) =1200 participants in a pure between-subjects design. Alternatively, the study could employ 2*25 = 50 participants if factors 2, 3, 4 are changed to within-subjects variables. In the within-subjects scenario, each participant performs 2 tasks on 3 different interfaces, 4 times to change the type of feedback. Hence, each session consists of 24 tasks per participant. This points to the limitations of within-subjects designs, including cross-contamination of conditions, transfer, learning and fatigue affects, which may be somewhat ameliorated by counterbalancing. It remains to reason how many participants are necessary to effectively counterbalance and analyze for the occurrence of time based trends and ordering effects based on 24 tasks. It is easy to see that the complexity of what appears to be a conceptually reasonable study design is experimentally not feasible.
As a consequence of complexity, the need for research methodologies in addition to the classic laboratory experiment becomes apparent. Without relaxing the rigor of scientific investigation, an alternative method common in design sciences is the case study. This approach can provide insight to complex situations and highly specialized user groups that are not accessible, transferable or translatable to laboratory settings and the experimenter controlled independent variables.
Mindful of the need for the confluence of empiricism and design in Interaction Science, the goal of this paper is to build bridges between the rigor of empirical investigations and design-centered engineering approaches under an explanatory and inclusive umbrella of Interaction Science
This paper is intended to serve as new editorial guidance to upcoming and future work in Interaction Science. The purpose of this editorial is to introduce JoIS readers and JoIS authors to the journal’s editorial diversity and the definition of Interaction Science with the goal to update the vision of JoIS and its aims and scope. Thereby, Interaction Science is described by a breadth of different thematic areas that are not necessarily linked to a single research domain.
Research listed in Table 1 may be conducted in social and cognitive sciences, biomedical engineering, life science, artificial intelligence research, usability engineering, design engineering, industrial design, occupational science, mechatronics, and of course, computer science.
Without elaborating our initial definition of Interaction Science, i.e., “science of interactions between humans and the technologies that they have created”, the resulting diversity of research may seem confusing and randomly assembled. To develop and contextualize this definition, we begin by exploring and defining the terms “interaction” and “science” in sections 2 and 3. This is followed by an analysis of the approaches, access and topics of the JoIS papers published to date. Lastly in section 4, and most importantly, we present our definition of Interaction Science” and our 2016 vision for JoIS in sections 5 and 6, before concluding the editorial in section 7.
What is interaction?
In this section the concept of interaction is discussed according to recent frameworks and perspectives referring to humans and their engagement in interfacing technology. We address the dynamic nature of systems, leading to recognize socio-technical systems as complex adaptive systems. Taking the system (−of-Systems) perspective, the underlying concepts and theories how scientists view and investigate interaction can be reviewed accordingly. In addition, the role of systems engineers and developers as intermediaries between users and technologies can be recognized explicitly.
In general, the term interaction implies some form of relationship between or among entities. In the context of the JoIS the entities are either biological systems or technological artefacts. Biological systems may be humans in general, specific populations or perhaps individuals. Technological artefacts may be some computational systems that are external or internal to an entity and support some form of active or passive behavior and exchanges.
Overtime, these interactions establish behavioral and cognitive schemas that transfer as patterns and expectations to further activities and in this way influence the acting stakeholders. Stakeholders are identified as the persons that are involved in system- and interaction-relevant processes, either operating, (re-)design, monitoring or controlling a system. As they interact in a certain environment, they create specific patterns in the system representing the environment. These patterns are termed system-wide patterns. According to the theory of Complex Adaptive Systems (see Fig. 1) the patterns shape the behavior of each agent (humans, robots, software applications etc.,) in this system, thus, determining, the way, each entity of this system interact. The advent of innovative applications, such as SMS-services and the resulting communication behavior of mobile-device users in terms of creating communication symbols and frequency of interaction, demonstrates these mutual dependencies in an ostensive way.
Social, socio-technical, technical and system-to-system interactions
Given the continuous spread and connectedness of societal systems, such as economic systems, communication and technologies across the world, the complexity and size of the systems involved, the speed of communication, the exchanges between humans as well as the changes affecting individual persons have increased interactions dramatically. They concern both, passive (through the consumer role), and active discourse (through the provider role) (cf ).
Stakeholders increasingly operate and interact in highly dynamic and volatile environments, due to a variety of factors, in particular due to the increase of economization of society , accompanied by the increasing penetration of technology in various societal systems (cf ). Accordingly, socio-technical systems are part of other systems where stakeholders interact in their environment. These systems are socio-ecological systems (cf. [5, 6]) including economic systems, again humans in the role of providers (e.g., producer of services and goods), and consumers (e.g., stakeholders getting informed on production methods) - see also Fig. 2. In these systems, social relations are of equal importance as the exchange of information or goods achieving (economic) objectives, as they allow stakeholders to act locally while collaborating globally (cf. ).
Consequently, interaction is a multi-facet phenomenon that needs to be studied from a variety of perspectives and levels of analysis and transparencies. When communication and interaction occurs increasingly electronically and in virtual settings, due to global work distribution and social media diffusion, the technological infrastructure has to be highly reliable and adaptable performing - the infrastructure has to take into account the complexity and high dynamics of socio-technical systems. Designing those systems requires respective concepts, such as adaptive governance (cf ).
Recent technological developments, such as cyber-physical systems, revealed the importance of system-to-system interaction on the technical or device level (cf ). For instance, Internet-of-Things application development has to deal with latency, power limitation, reliability (unreliability), network topology related effects as well as data processing. Once unification approaches or standards become too complex, smaller particles of applications, such as micro-services come into play (cf ). They allow composing architecture patterns as a set of small independent, but coordinated processes . Services communicate with some lightweight protocols , in order to deploy micro-services, such as navigation or data updates, independently.
The management of these services becomes a challenging task, once it is also considered a separate service. Hence, designing technological artefacts has to be considered as a task of allocating micro-services to achieve a certain objective: an example is Open IoT , which supports coupling additional elements and modules on demand due to known interfaces and data formats. Again, skillful interaction brings stakeholders closer to design tasks, in particular in additive manufacturing, which enables networked citizens to produce their own goods having provided with respective digital literacy and modeling skills (cf ). Another domain, namely healthcare, has been explored utilizing micro-services recently, such as intelligent sensing of a patient’s blood pressure (cf ). Toolkits can provide modularization and extensibility on different levels, leading to micro-services for small, system-wide features based on a service-oriented architecture.
Recognizing the current situation and anticipating further system developments,
Interaction has to be considered as the exchange of material or immaterial goods between acting parties (biological or technical entities) embodied in a certain context.
Interaction occurs along transactions between entities. From a system perspective these entities are elements or system components that are mutually linked through exchange relationships, and are part of a discourse in the encompassing system.
Having explored, contextualized and defined our conceptualization of interaction, our understanding of what constitutes scientific research and the role of scientific methodology are presented next.
What is science?
According the Merriam Webster dictionaryFootnote 2“science” is described as knowledge about or the study of the natural world based on facts learned through experiments and observation. This definition appears deceptively simple and yet it implicitly invokes a complex concept, epistemologyFootnote 3 (ways of knowing or how to discover knowledge). Overall, a particular approach to epistemology is paramount in the scientific community: empiricismFootnote 4. Other epistemological approaches such as rationalismFootnote 5 or skepticism have less influence in the sciences and play a greater role in philosophy or domains that defy observation and experimentation. Empiricism differs from rationalism or skepticism in that it requires the interaction of the investigator with the physical world, using research methodologies to collect observations and to test hypotheses. Karl Popper further developed scientific empiricism by logically improving hypothesis testing as a process whose outcomes include the possibility that a theory may be false (falsifiabilityFootnote 6). His contribution simplifies to the practice of scientists not seeking to confirm their hypotheses but instead hoping to reject the generality of a given null hypothesis.
Science defined by method (and not by topic)
It is easy to argue that scientific methodologies are at the core of the definition of science where science is a process, an ongoing activity dedicated to the discovery of knowledge. This implies that science is not defined by its topic but science is defined as a process of knowledge discovery. For example, it is possible to conduct unscientific studies in the natural sciences and at the same time one may conduct scientific investigations of artificial phenomena, such as databases, computer hardware or cyber security.
Paramount among empirical methodologies is the experiment. The design of an experiment requires scientists to define groups for comparison, the manipulation variables and measurement, i.e., observations. In general this is accomplished as follows: Scientists present an a priori hypothesis, design an experiment to test the hypothesis comparing some groups or sets of conditions, conduct the experiment by manipulating variables and holding all else constant, then collect data. Next they evaluate, usually statistically, the data and examine whether based on the results they can reject the null hypotheses. These scientists publish, only to make way for the next experiment.
Are there other scientific alternatives that are observation based? In other words, can scientists make scientific observations without conducting a laboratory experiment?
Computational power has giving science new ways to investigate natural phenomena and complexity . What escapes traditional experiments because of the number of variables involved or the scope of temporal and physical dimensions can be modelled and simulated (with an acknowledged set of limitations or restraints). The question is whether these approaches are empirical. We as scientists argue that such approaches can be empirical if they generate data based on different assumptions and then test these assumptions. In that sense, modelling and simulation can be viewed from an empirical experimental perspective as a case of model comparisons by manipulating assumptions and then comparing the data generated by different models.
The example of modelling and simulation as experiments provides the first glimpse at alternative approaches that complement the traditional scientific approaches to human technology interactions, which are experimentally based. Another relevant approach that adds context and preserves complexity in interaction research is the case study. The Oxford University Press dictionary presents two definitionsFootnote 7 of case studies,
a process or record of research in which detailed consideration is given to the development of a particular person, group, or situation over a period of time.
A particular instance of something used or analyzed in order to illustrate a thesis or principle, for example “airline deregulation provides a case study of the effects of the internal market.”
We are initially concerned with the first definition, given that the alternative definition suggests the use of case study as point-in-case, an example or ad-hoc explanation for a phenomenon. Nevertheless, the conceptualization of the case study as the process or record of research in which detailed consideration is given to the development of a particular person, group, or situation over a period of time, implies an empirical approach of systematic observations that are collected by following the object of study, the case. The flexibility of this definition has given rise to questions about the scientific legitimacy of case studies. Case study research has been criticized for ambiguity, limitation and measurement approaches . Similarly, one might ask, what is the definition of a case? Is it equivalent to a sample? If so, can the case be considered representative so we can generalize to a population? These are provocative questions and they raise the issues of contextualization and ontology research  which are central to case study research. A practical example of the role of context is described by  in three case study design steps:
“First, we relate to our research problems, selecting the process and/or outcome to be studied. Second, we define the context, the elements that we treat as the environment of the process singled out. Third, we trace the specific links in the process we have selected. Depending on the quality of our knowledge about the case, we arrive at an explanation of the case.”
It becomes apparent that context provides definition and specificity relevant to the study design, which is similar to Geertz’s  term ‘thick description’, emphasizing the specific and the contextual and what appears circumstantial to make behavior meaningful to the outsider. Likewise, it appears that the potential contributions of the case study methods to Interaction Science are driven by the inclusion of contextual factors without the need for reductionist methods that fail to reproduce the richness of a situation in the laboratory with a limited number of variables. The case study as such can intervene in an ongoing process in an existing context or attempt to reconstruct both context and process from existing data. While the former support direct observation of the study of object, the latter relies use of existing data and may, depending on the quality of the data require interpretation and some guess work. In that sense it is similar to the alternative definition of case study that we dismissed earlier, but it remains suitable in an ontological analysis to reveal a perspective of the reality investigated. Ultimately, the usefulness of reconstruction is driven by quality and quantity of the available data. In fact, one might argue in an era of increasingly detailed digital footprints, i.e., the trail, traces or "footprints" that people leave online, that reconstruction provides considerable case insight into behavior specific to online contexts. Regardless of the exact nature of the case study approach, or how varied and variable data collection and contextual knowledge are, the inclusion of context in the observation of a naturally observed phenomena for explaining behavior and process, must be considered provocative and valuable. More recently,  formalized the idea of case studies inclusion in the domain of design science, engaging both practitioners and scientists. (See Fig. 3 left.) While the figure is self- explanatory, an embedded cycle, either regulating or regulative (translated from the Dutch regulatieve cyclus) requires clarification. It was originally defined by  and consists of the five steps (problem definition – diagnosis – plan – intervention – evaluation). The purpose of the full reflective cycle is to use a series of cases, reflect on their results and develop design knowledge.
While case studies hardly satisfy Popper’s falsifiability criterion, they give rise to varied perspectives and generate possible explanations that extend and contextualize the scope of traditional hypothesis testing and facilitate the generation of rival hypotheses. Indeed, case based explanations are a source of knowledge and may reveal the possibility of causal relationships and unsuspected correlation, which in turn give rise to testable theories. As a result, case study research provides insight to complex phenomena and contribute to the cycle of empirical research  (See Fig. 3 right).
Methodologies are part of the TEAM approach
One can argue that epistemology includes but is not limited to empiricism, hence other approaches in the quest for knowledge discovery can contribute to the purpose of advancing our understanding of natural and technical phenomena. It appears that in addition to the classic laboratory experiments and complementary empirical approaches, scientific discovery requires the development of new methodologies, metrics and measurements, as well as theory and applied work. Hence the domains of method, theory, application development have a place in science and complement empirical studies. These approaches are in line with the original JoIS mission embracing the TEAM (theory, empirical data, application and method) to research. Examples of theoretical contributions are literature reviews, frameworks; it is easy to see that theory challenges scientists to test its scope and validity; at the same time, theory informs and inspires engineers to design and innovate.
Complementary to theoretical investigation are examples of applied work, such as prototype and product development, and case observations; as scientists we may eschew such research for its lack of incremental progression; as engineers, this work is instrumental for the investigation and testing of approximated solutions to open-ended problems whose complexities defy the laboratory limitations and simulation assumptions. While these applied approaches are exploratory in nature but remain empirical because user testing and measurement of complex artifacts, for example of augmented reality devices like Microsoft’s HoloLens or the investigation of click-through activity, generate observable data.
The interplay of complexity and methodology becomes evident in the domain of design science
McKay et al. , in the field of Information Systems, have argued ‘for a broader and more integrated view of design: one that emphasizes both the construction-centered and human-centered aspects of design’ (p. 125). Hereby, design science can play a crucial role. As user interactions have become more central to socio-technical, in particular with the diffusion of Social Media into application domains and systems, Interaction Science contributions need to capture theorizing about design while expanding the scope from supporting the processes of interaction towards the evolution of socio-technical systems.
Users are not only subjects to be studied in analysis and participate in design, they become the driver of design and development processes. Consequently, design science needs to take a behavior-oriented perspective (cf. ), e.g., encapsulating behavior in its interactional context. Such a perspective has been promoted by recent approaches in Business Process Management allowing stakeholders to articulate their behavior and execute the resulting model (cf. ). These approaches allow for case-sensitive reflective design not only of individual but rather collective behavior. In times of recognizing diversity as design parameter (cf. ), both behaviors are of importance in organizational settings (cf. ). From a methodological perspective, the empirical part (evaluation) of designs keeps stakeholders involved – they are enabled to test the artefacts they have been generating, and the context of an artefact can be kept throughout the two iterated activities, ‘designing an artefact that improves something for stakeholders, and empirically investigating the performance of an artefact in a context’ (, p. v).
Hereby, Interaction Science as Design science may follow a case-based research or and sample-based research approach:
‘In case-based research, we study single cases in sequence, drawing conclusions between case studies. This is a well-known approach in the social sciences. In the design sciences, we take the same approach when we test an artifact, draw conclusions, and apply a new test. The conclusions of case-based research typically are stated in terms of the architecture and components of the artifact and explain observed behavior in terms of mechanisms in the artifact and context. From this, we generalize by analogy to the population of similar artifacts.
In sample-based research, by contrast, we study samples of population elements and make generalizations about the distribution of variables over the population by means of statistical inference from a sample. Both kinds of research are done in design science’ (ibid. p. vi).
A corresponding design cycle contains iterations over problem investigation, treatment design, and treatment validation. Different cases may require different effort for analysis, design, and evaluation. Analysis needs to be complemented with the research setup, in order to check whether the research setup supports the inferences. The empirical cycle continues with research execution, using the research setup, and data analysis, using the inferences designed earlier.
According to the findings in Wieringa  design science approaches relevant for Interaction Science reveal several patterns:
Observational case studies help analyzing mechanisms that produce phenomena in certain cases, e.g., technological artefacts trigger a certain consumer behavior. Studies of this type concern either social systems, such as development organizations, or technical systems, such as workflow engines, or socio-technical systems, such as recommender systems.
Single-case mechanism experiments explore the production of certain phenomena in specific situations (individual cases). They concern social or technical systems or socio-technical ones, or models of these systems. They are studied in the laboratory or in the field. In case of a technical system activities refer to testing, whereas in case of studying a socio-technical system, simulation activities are performed.
Technical action research refers to studies testing a newly designed artifact in the field getting stakeholders involved.
Statistical difference-making experiments, targets artifact testing by involving a sample of population elements. The outcome is then compared with the outcome of treating another sample with another artifact. In case of a statistically significant difference, the conditions of the experiment are checked to explain the recognized difference.
Regardless of the selected setting of an investigation scientific as generalizations about the finding on interactional phenomena play a crucial role. Theories in Interaction Science are subject to both, empirical tests and conceptual assessments. Interaction studies may affect entire societal systems, as recent findings from adapting interfaces to cultural settings and parameters reveal . They enhance ‘our capability to describe, explain, and predict phenomena and to design artifacts that can be used to treat problems. We need theories both during empirical research and during design. Conversely, empirical research as well as design may contribute to our theoretical knowledge’ (, p.viii).
What are the topics and methodologies of our publications?
Having established our views on interaction and science, we are obliged to perform the test of the “definition [of Interaction Science] is what we publish.” It has become increasingly obvious that interactions occur in a variety of contexts, and thus can be studied in a variety of scenarios and domains. While we originally stressed the classic laboratory experiment, it is easy to see that our publications fall into all four areas of our TEAM definition employing complementary empirical methods, such as user modelling and case studies (see Table 2 for a complete listing of JoIS publications since 2013 including keywords and abstracts.) It appears that empirical studies, user modelling, frameworks and case studies comprise the majority of papers (see Fig. 4). The data to date indicate that next to traditional experiments and classic theoretical framework development, user modelling and case studies are noteworthy epistemological approaches in interaction research published in JoIS.
This diversity of methodologies in the articles published does not necessarily reflect the topics that attract our readers. A more relevant measure to reader interest is the number of accesses of each article. What is the operational definition of access? An access means that the article was accessed online in html or pdf format. In other words, each access that is counted is the result of navigation or of download. While these data show general patterns there are limitations; for instance, based on the publisher’s reporting system the overall access count of the Journal since 2013 varies from 108,766 – 121,242. Also, we have observed different trends in access rates that are moderated by a number of variables. For instance, some papers are proverbial sleepers: such papers have initially a low access count but readership picks up rapidly without tapering off; Other papers level off shortly after publishing. Respective examples are Rachel Harrison, Derek Flood, & David Duce paper on mobile interaction whose accesses by month continue to grow; and the first JoIS editorial which tends to be accessed consistently, on average 130 a month. Likewise, as our readership grows, so do out accesses, which likely distorts absolute numbers. With these data properties and limitations in mind, and assuming random error of the reporting tools, we report percentages rather than absolute figures to indicate general reader interest. The access data depicted in Fig. 5 summarizes article accesses over a 30-day period from mid-February to mid-March 2016, based on 4,402 journal accesses.
According to the access data, it appears that frameworks and theory have make up the majority of access data, making up for nearly half of all journal accesses, 49%. User modelling, empirical studies and case studies account for approximately 44% of all access while metrics and prototypes account for the remaining 7%.
These data are provocative and suggest that JoIS readers prefer theoretical and framework papers, followed by traditional, data-driven research and engage less in scholarly work on method development, prototypes and metrics.
It seems reasonable to enrich the data reports with a more detailed analysis of JoIS contributions so far. Another viewpoint for the examination, “of what we publish” reviews the JoIS papers published so far (2013–2016) according to their grounding and main contribution, following psychological sciences and design thinking on one hand, and the TEAM approach on the other hand: Theory advancement, Empirical advancement, Applied advancement, Methodological advancements. Each paper is listed including its abstract in the Table 2.
Papers grounded in Psychological Sciences:
Sachin Shah, J. Narasimha Teja, Samit Bhattacharya, 
Christophe Deniaud, Vincent Honnet, Benoit Jeanne. Daniel Mestre, 
Sandi Ljubic, Vlado Glavinic, & Mihael Kukec, 
Libby N Brockman, Dimitri A Christakis, Megan A Moreno, 
Megan A Moreno, Lauren A Jelenchick, Rosalind Koff, Jens C Eickhoff,Natalie Goniu, Angela Davis, Henry N Young, Elizabeth D Cox, Dimitri A Christakis, 
Tilo Mentler & Michael Herczeg 
Salim Chujfi & Christoph Meinel, 
Herre van Oostendorp & Sonal Aggarwal, 
Anke Dittmar, & Laura Dardar, 
Torsten Felzer, Ian MacKenzie, Stephan Rinderknecht, 
Michael Heron, Vicki L Hanson, Ian Ricketts, 
Rachel Harrison, Derek Flood, David Duce, 
According to the TEAM approach each paper contributed as follows:
Theory advancements (in terms of models):
Sachin Shah, J. Narasimha Teja, & Samit Bhattacharya,  propose a simpler model to predict the affective state of a touch screen user as previously used, using finger strokes for prediction based on seven features that are combined predictor. A user’s affective state is categorized as one of three emotional states. The model has been validated with empirical data, leading to a prediction accuracy of 90.47%.
Herre van Oostendorp & Sonal Aggarwal,  propose a new cognitive model based on path adequacy and backtracking strategies, also recognizing the semantics of pictures. The effectiveness of support based on the new model could be proven in a multi-tasking experiment with cognitively demanding situations.
Dipta Mahardhika, Taro Kanno, & Kazuo Furuta, . investigated team cognition and present empirical data as well as a comprehensive framework for analyzing the cognitive aspects of team interactions, such as team situation awareness, team memory, and human-agent interactions.
Sachin Shah, J. Narasimha Teja, & Samit Bhattacharya,  - The prediction approach could be validated with empirical data involving 57 participants performing 7 touch input tasks. The validation study demonstrates a high prediction accuracy of 90.47%.
Libby N Brockman, Dimitri A Christakis, Megan A Moreno,  found out that making friendship for research with adolescents on social network sites is feasible, whereby friending adolescents from a familiar profile may be more effective for maintaining online friendships.
Megan A Moreno, Lauren A Jelenchick, Rosalind Koff, Jens C Eickhoff, Natalie Goniu, Angela Davis, Henry N Young, Elizabeth D Cox, & Dimitri A Christakis,  found out with respect to college students’ obesity that there were no significant associations between internet use time and BMI. Their findings suggest that both online time and particular online activities may be associated with decreased vigorous physical activity.
Dipta Mahardhika, Taro Kanno, & Kazuo Furuta,  investigated team cognition and present empirical data as well as a comprehensive framework for analyzing the cognitive aspects of team interactions, such as team situation awareness, team memory, and human-agent interactions.
Applied advancement in terms of applying novel concepts or methods in the course of system development:
Tilo Mentler & Michael Herczeg  developed a novel interactive cognitive artifact for incident commanders increasing their situation awareness in mass casualty incidents.
Salim Chujfi & Christoph Meinel,  addressed virtual teams’ work and could increase the effectiveness of their knowledge communication.
Herre van Oostendorp & Sonal Aggarwal,  could improve navigation within a website applying an extended cognitive model recognizing picture semantics.
Anke Dittmar, & Laura Dardar,  studied the use of calendars for work and personal purpose with respect to digitizing respective tools. It appears that paper and digital calendar artifacts continue to co-exist.
Torsten Felzer, Ian MacKenzie, & Stephan Rinderknecht,  developed a tool based on a modified number pad to assist persons with motor problems when providing input to technological artefacts.
Michael Heron, Vicki L Hanson, Ian Ricketts,  redefined the development process of open source systems by relating it them to adaptive accessibility software and supporting user- and usage-relevant development issues.
Methodological advancements applying methods in new context or finding novel constituents for method development:
Salim Chujfi & Christoph Meinel,  – model patterns for measuring the effectiveness of interaction of individuals, taking into consideration their cognitive and social behaviors.
Anke Dittmar, & Laura Dardar,  use the Day-Reconstruction method to identify common practices, activities and tasks related to calendar artefacts.
Christophe Deniaud, Vincent Honnet, Benoit Jeanne. & Daniel Mestre,  found a way to measure ‘presence’ as a proxy for ecological validity in driving simulators.
Sandi Ljubic, Vlado Glavinic, & Mihael Kukec,  provide a smartphone model for discrete tilt-based text entry speed prediction. It represents efficiency rates for optimal performance and could substitute user tests of smartphones.
Libby N Brockman, Dimitri A Christakis, & Megan A Moreno,  examined study designs for finding adolescent friends on social network sites for research purposes.
Michael Heron, Vicki L Hanson, Ian Ricketts,  identified development topics to be raised by open-source developers before users encounter their development tools in real world contexts.
Rachel Harrison, Derek Flood, & David Duce,  designed a procedure overcoming limitations of existing usability models when applied to mobile devices through combining attributes from different usability models.
In summary, our empirically driven challenge, “the definition of what we do [as interaction scientists] is in the papers we publish” revealed interesting results. Based on the percentage data of contributions, JoIS embodies TEAM (theory, empirical data, applications, methodologies) and offers a diversity of methodologies and theoretical approaches. At the same time, framework papers in the theoretical category have attracted the majority of our readers’ attention. One might argue that this interest is indicative of the relatively young age of our discipline and a reflection of our readers who seek new ways of thinking to solve interaction challenges and integrate theory with practice. While this interpretation should be evaluated in future editorials by investigating citations, references and related product development, the task at hand is to contextually define Interaction Science based on the journal’s contribution and the definitions of interaction and science.
What is interaction science?
Interaction Science investigates interactional phenomena from different perspectives and disciplines. It provides transdisciplinary concepts, theories, and techniques for developing and evaluating contextual or adaptive socio-technical systems. Researchers investigate articulation of human needs, the role and capabilities of developers, infrastructures, patterns of use and ambience, and socio-economic issues. It aligns theories and conceptual findings with technology developments while empirically studying social, cognitive, motor, and emotional aspects of interactions.
Since Interaction Science is inclusive of a breadth of thematic areas that are not necessarily linked to a single research domain, Interaction Science should be linked to transdisciplinary approaches using scientific methodologies. Consider the relevancy of context of technological development, domain knowledge, such as in health care, becomes more and more the driver of applying design. For instance, smartphone data entries due to the networked nature of ambient technologies are not the same for health care apps as they are for personal contacts when synchronizing with web mail boxes; novel interface technologies, such as haptics, gestures, vision and brain computer interfaces require ontologies for design, as they deliver data to other networks. While the application domain remains the same, intertwining is stronger with emergent structure and behavior elements.
Models, in particular ontologies, play a crucial role in developing services or artefacts. One way to model in transdisciplinary research is to enrich existing models or specifications with contextual knowledge. For instance, for organizational design Le Clair et al.  expect a new generation of business process models within the next 5 years, designed from the outside replacing heavy packaged applications designed from inside-out, e.g., driven by functional deliveries. This design strategy still drive customer interaction today, but cannot keep up with the demands for change given by dynamic customer needs and the complexity of organizing work. Business process models are crucial for designing business information systems, as they (i) represent interaction among involved stakeholders (customers, domain specialists, producers) and (ii) serve as means of communication between the various stakeholder groups.
The quality of models plays an increasing role in adaptive environments , and need increasingly to be managed by stakeholders, e.g., when re-organizing their work. One major topic in Interaction Science research concerns the intelligibility of models, as models need to be communicated when being shared and reflected along organizational learning steps  – the communication skills of stakeholders will play a crucial role in transdisciplinary studies (cf. ). Interaction Science will touch on Human Resource Management, Human and Organizational Behavior, Organization Science, Education, and Social Media.
Revised aims and scope
In this section we discuss the aims and scope of Interaction Science from a conceptual and methodological perspective, which we define as follows:
Conceptually, inter- and cross-disciplinary research should be traversed by transdisciplinary research focusing on system-oriented and integrated study approaches; moreover, a system-of-system perspective on the subject of investigation could help to studying systems of high complexity, taking into account emergent behavior and interoperable system transformations.
Methodologically, we take into account and include multi-perspective studies and cognition and behavior-oriented approaches relying on existing experiences and the diffusion of design thinking approaches when studying interaction.
Towards transdisciplinary research
A traditional approach to studying interaction relationships between humans and technology or between systems is by performing discipline-specific studies, focusing on dedicated aspects of interaction, such as psychologists working on social interaction topics, and computer scientists working on usable security or communication protocols. While such an approach will lead to specific insights into interaction processes, attaining a contextual or systemic understanding of the way interactions occur and the design of interactive processes operate, we need to go beyond this way of research. Although being a more challenging endeavor – researchers are likely to be enforced to leave the safety of their original territory, in particular moving beyond the comfort of their customary methods (cf. ). It is evident that the opportunity to explore and learn a new domain is likely to facilitate gaining an understanding of different perspectives and alternative ways of investigating phenomena and artefacts (cf. ).
Taking such a step allows for researching beyond traditional subject boundaries and appreciating scientific specialisms in a context ensuring that Interaction Science as a field of knowledge has a reality in the observed world. Working on such a context goes beyond interdisciplinary research as knowledge of several fields is not combined, but rather requires integrating and aligning (adjusting) concepts, theories, models and methods. Such mergers are common to transdisciplinary research . Interaction Science requires an understanding of underlying knowledge fields plus their relationships when developing theories across disciplines (cf. ).
No doubt, an endeavor builds on taking multiple perspectives is likely to generate conflict and disagreement at the theoretical, methodological, possibly the empirical level, and certainly in applied contexts (cf. ). However, therein lies the strength of Interaction Science for it provides the platform that supports relevant transdisciplinary discourse for enabling the conflict resolution. Hence, differences and differentiation can be discussed on the high level, handling them at the meta-level of research approaches, where a common goal of an investigation can guide the integration or alignment processes.
It is the aforementioned set of characteristics qualifying research in Interaction Science as transdisciplinary endeavor. According to Pohl and Hadorn , transdisciplinary research is appropriate ‘when knowledge about a societally relevant problem field is uncertain, when the concrete nature of problems is disputed, and when there is a great deal at stake for those concerned by problems and involved in dealing with them.’ (ibid., p. 20) Interaction can be considered as a societally relevant phenomenon to generate certain knowledge about. Its concrete nature needs to be disputed the more technical systems are involved, as there is a great deal at stake for us, in particular thinking of reliability of information and communication access.
Transdisciplinary research aims to tackle topics in a way that researchers can grasp the complexity of issues while taking into account the diversity of life-world and scientific work. Method-wise it aims to link abstract and case-specific knowledge, when developing knowledge and practices for a common good (cf. ). It requires a systematic research process, composed of (i) problem identification and structuring, (ii) problem analysis, (iii) bringing results to fruition. For each of the steps researcher should follow several principles (cf. ):
Reduce complexity by specifying the need for knowledge and identifying those involved, in particular in phase 1 of transdisciplinary research
Achieve effectiveness through contextualization, e.g., identifying specific target groups
Achieve integration through open encounters, e.g., through boundary objects, transfer of concepts, method bridges
Develop reflexivity through recursiveness, limiting uncertainty and as means of targeted learning
In the following we briefly exemplify how some of these principles can be implemented when interaction is investigated through transdisciplinary research. Taking a System-of-Systems perspective allows reducing complexity while keeping the context of a research concern.
Taking a system-of-systems perspective
Once interactive distributed technologies are expected to reconfigure and adapt themselves according to changing environmental conditions and requirements, respective dedicated services need to be available for composition and orchestration (cf. ). Increasingly, such systems are composed of various operationally and managerially independent sub-systems, revealing semantic heterogeneity .
Typical examples are enterprise portals that aim to enable the integration and linking of information resources across different systems in real time . On one hand, stakeholders want to use features or entire systems they are familiar with even in novel contexts. A typical example is Facebook as its functionality can be of use in private, work, and business contexts. On the other hand, different application contexts require different compositions of features or systems, such as a portal for market research differs from an accountant's workplace, referring to competitor or customer information, respectively, even if both provide analytics.
Rather than compiling such systems to inseparable entities, those systems are interconnected with respect to serving a common objective . This particular class of systems is referred to as system-of-systems (SoS) (cf. ), and is increasingly investigated in the context of digitizing complex systems . For instance, consider a supply network that integrates different systems, each managing a single transport modality, such as air cargo, sea freight, or road freight transport. Those systems are operated autonomously, but at the same time are all part of a bigger whole leading to emergent functionality and system behavior. For instance, the transport of goods by combining air cargo and sea freight may allow the optimization of delivery routes and therefore a decrease in delivery time and costs.
Another class of systems featuring emergent behavior are e-learning systems. Such systems couple content management and social media dynamically, depending on individual or collaborative learning processes (cf. ). Hereby, 'emergence occurs when interactions among objects at one level give rise to different types of objects at another level. More precisely, a phenomenon is emergent if it requires new categories to describe it which are not required to describe the behaviors of the underlying components.’ (, p. 10) The provided added value, which cannot be attributed to a single system, is given through adjusting system properties for higher-level use, such as sharing context-sensitive annotations among learners for mutual feedback. The overall system therefore reveals some behavior that is more than the sum of its parts or component-systems (cf. ).
However, a topic deserving particular attention, as it goes beyond traditional research settings in interaction research, are communities whose members jointly create services and co-construct artifacts, as emotional, cognitive, organizational and technological skills are challenged when interacting in these social systems. Collaboration and cooperation are interactional phenomena that likely require transdisciplinary design due to their social and domain-specific nature at the same time.
Cooperatives have turned out beneficial for crisis and innovation management. A study by Smith St and Rothbaum  reveals that worker and producer cooperatives have not only benefits during times of economic crises, but also for large and small scale innovations. The latter ‘are contributed by individual members. For worker cooperatives, observations that the workers make in the course of their daily work, whether in the context of building craft products, working on an assembly line, or service work, may be more likely to be mentioned, recorded, and built upon by the cooperative. In this way the cooperative can introduce improvements and new methods of production and organization with the more direct line of communication that their management structure facilitates. This is clearly a comparative advantage of cooperatives over conventional firms’ (ibid., p.11), as long as organizations maintain some sort of exchange between the internal systems of the organization and the external world through bringing in new ideas, resources, and individuals .
In this contribution, we took a look at JoIS’ albeit short, three-year history to learn and to reflect with the purpose to motivate, to inspire and to clarify our vision for the future. JoIS began as a journal dedicated to Interaction Science grounded in traditional laboratory empiricism and statistics to serve as a forum for researchers and practitioners who investigated the problem space of technology based interactions scientifically. We realize that the complex, and constantly changing problem space of Interaction Science requires more than lab experiments. Indeed, we encourage creative problem solvers and innovators in design sciences and design engineering to contribute and embrace the scope and the challenge of understanding of sociotechnical systems.
Establishing Interaction Science as human science we want to employ the best of social and cognitive sciences applied to engineering developments. We still believe that rigorous research methodology is the marlin spike that can unravel the convoluted knot of interactions between humans and the technologies that they have created, and progress towards stakeholder-driven development. Our goal is to attract cross-disciplinary research and inspire theory-grounded scientific investigations of human interactions with modern technologies, including their potential for bringing about change, their limitations, their benefits, their consequences and their broader impact.
Hence, we ask that our contributors remain committed to the TEAM approach: Theory advancement, Empirical advancement, Applied advancement, Methodological advancements. We believe that the JoIS’ authorship and audience will benefit from this contextual understanding and the resulting transdisciplinary results.
For food for thought http://www.pbs.org/wgbh/nova/blogs/physics/2015/02/falsifiability/
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Each author contributed 50% to the manuscript. Both authors read and approved the final manuscript.
The authors declare that they have no competing interests.
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Bahr, G.S., Stary, C. What is interaction science? Revisiting the aims and scope of JoIS. J Interact Sci 4, 2 (2016). https://doi.org/10.1186/s40166-016-0015-5
- Interaction Science
- Human-Computer Interaction
- Socio-technical systems
- Design Science