Cognitive Engineering puts models of mental processes and cognitive systems into interaction practice, and at the same time seeks to explain phenomena, predict behavior, and develop schemes to process representations of cognitive models. This is complicated by social, emotional, and technical factors that are present in interactive settings. Consequently, researchers and practitioners in the area of cognitive engineering face the challenge to address these factors as well as the influence and context of technological artifacts themselves. This endeavor requires structured discourse on methodological and technical knowledge and findings across disciplines (cf. [1]). As technology and technological artifacts have become abundant in everyday life, the design and evaluation of socio-technical aspects like situation-awareness, cognitive task analysis, work design, and the identification of common cognitive reference points are of crucial importance. Hence the role of stakeholders (designers, project managers, workers etc.) requires review, in particular, with respect to their informed involvement in development processes (cf. [2]). Their capabilities, including selforganized adaptation of artifacts and learning, are increasingly becoming essential for achieving certain qualities (cf. [3]), such as resilience of systems in diverse contexts of use. Cognitive engineering can be seen as an academic and practical endeavor. Proponents of both areas operate out of different backgrounds, ‘differences in defining and tackling problems—that prevail in the systems of science and practice’ ([4], p. 517). These differences come into play when taking into account that ‘communication elements of one system, such as science, cannot be authentically integrated into communication of other systems, such as the system of a business organization’ (ibid., p. 516). For well-reasoned engineering processes adjusted knowledge from science and practice is required, in particular aligned assumptions and mindsets behind specific development approaches (cf. [5, 6]). This adjustment is of particular importance when artifacts are created in collaborative settings (cf. [7]). There are many ways to start and guide this process of development. In this issue, the inquiry of engineering knowledge in the course of system development is investigated. It allows practitioners to frame their acquisition of development knowledge and the identification of system requirements (cf. [5, 8]). Such an approach does not exclude generative developments, such as the on-site collaboration of research and development practice (cf. [9, 10]). The findings presented in this special issue on recent advances in cognitive engineering show the continuous need for analyzing concrete designs and implementations of cognitive models and their construction processes. Experiencing cross-disciplinary discourse in this way allows setting the stage for comprehensively informed and systemically analyzed research and development efforts. Discipline-specific approaches to cognitive engineering are challenged as they are likely to leave open essential questions of socio-technical system design. Instead, ways of working with cognitive systems and models in a sociotechnical context are identified fostering research and theory building. The authors address several tensions associated with integrating various elements, including development assumptions, design dimensions, communication styles, rigor and relevance, and stakeholder interests, and show how such tensions are valuable themselves for research and theorizing (cf. [2, 11, 12]). The contributions reveal conflicting objectives, and practitioners’ dilemmas. They describe the dialectical forces that foster the tensions associated with gaps, including studying specific phenomena, stakeholder involvement, and dedicated user support systems, namely for navigation and social relationships handling. In some cases the tensions represent fundamental, unresolvable paradoxes that can be generative of new research and practice if appreciated as such. The contributions take different approaches on phenomena occurring in actual situations of using technical Correspondence: christian.stary@jku.at Department of Business Information Systems Communications Engineering, JKU Knowledge Management Competence Center, Johannes Kepler Universitat Linz, Science Park III, Altenbergerstrase 69, 4040 Linz, Austria