Capturing and Organizing Reusable Interaction Practices Using Justification and Feature Models

By: Sébastien Mosser, Shyam Ravichandran, Kalvin Thuan-Phong Khuu, Brian Detlor, Denise Y. Geiskkovitch, Anne-Marie Pinna-Déry, P.J. White

Abstract

Engineering teams working on complex socio-technical systems frequently rely on tacit knowledge when addressing stakeholder- specific needs, hindering systematic reasoning about design choices. In this paper, we report on a qualitative case study within the EMPOW R D project to observe how best-practice knowledge can be captured using justification diagrams, a safety-inspired argumentation formalism. We explore the organization of these practices as a configurable product line using feature models to manage their variability. By applying well-defined composition operators, we demonstrate how assembling models from selected practices can automate the construction of coherent argumentation structures. Our observations within the EMPOW R D project, specifically regarding interactions with older adults, illustrate how this integrated modelling approach enables the systematic reuse and justification of practices across different experimental scenarios.

Keywords

Model composition, Software Product Line, Argumentation models, Older Adults

Cite as:

Sébastien Mosser, Shyam Ravichandran, Kalvin Thuan-Phong Khuu, Brian Detlor, Denise Y. Geiskkovitch, Anne-Marie Pinna-Déry, P.J. White, “Capturing and Organizing Reusable Interaction Practices Using Justification and Feature Models”, Journal of Object Technology, Volume 25, no. 3 ( 2026), pp. 3:183-196, doi:10.5381/jot.2026.25.3.a14.