| Vol-4197 urn:nbn:de:0074-4197-x Copyright © 2026 for the individual papers by the papers' authors. Copyright © 2026 for the volume as a collection by its editors. This volume and its papers are published under the Creative Commons License Attribution 4.0 International (CC BY 4.0).

# BCSS 2026
14th International Workshop on Behavior Change Support Systems

## Proceedings of the 14th International Workshop on Behavior Change Support Systems (BCSS 2026)
Co-located with 21st International Conference on Persuasive Technology 2026

## Hakodate, Japan, March 10, 2026.

Edited by

### Harri Oinas-Kukkonen
Sharon Nabwire

University of Oulu, Oulu Advanced Research on Service and Information Systems, Oulu, Finland

## Table of Contents

- Preface
  Summary: 14 manuscript submissions were received for the workshop, and after external review, 7 submissions were accepted as full papers and 3 submissions were accepted as short papers for this volume.
- Introduction to the 14th International Workshop on Behavior Change Support Systems 1-5
  Sharon Nabwire, Harri Oinas-Kukkonen

### Session 1: Theory and Impact

- Environmental Impact Analysis of Social Media Usage via Eco-Impact Tracker 6-18
  Helen Batuwantudawa, Md Tanvir Hasan, Md Sanaul Haque, SM Musfequr Rahman, Jari Porras
- Behavior Change Support Systems from a Self-Control Theory Perspective: A Systematic Literature Review Across Domains 19-34
  Jan M. Enkmann
- Persuasive Software Features for a Behavior Change Support for Alleviating Academic Procrastination: A Scoping Review 35-44
  Emma Kemppainen, Harri Oinas-Kukkonen
- Persuasive System Design for VR Meditation: A Design Science Approach to Enhancing Cognitive Absorption 45-60
  Shahriar Iqbal, Juho Mattila, Rosanna E. Guadagno

### Session 2: Frameworks and Architectures

- Design of a Personalized Persuasive System Based on Estimated Psychological Traits for Promoting Physical Activity and Experimental Evaluation 61-69
  Shoji Hayakawa, Tatsuya Yamamoto, Masanori Shiraishi, Yuta Masuda, Takuya Kamimura
- UMI: Universal Modular Intervention Framework to Accelerate Behavior Change Support Systems Research 70-77
  Tatsuya Yamaguchi, Moe Matsuki, Saki Katagiri, Masaki Ishihara
- Balancing Personalization and Protocol Fidelity: A Protocol-Guided Dialogue Architecture for LLMs within Cognitive Behavioral Therapeutic Interventions 78-86
  B.C.M. Devilee, Bin Yu, Simone M. de Droog, Somaya Ben Allouch
- RADAR: A Mnemonics-Based Framework for Designing Educational Serious Games for Retrieval Practice 87-100
  Kiemute Oyibo
- Stakeholders' Perceptions of the Persuasive Features Supporting Continuous Engagement in Weight- Management Applications 101-116
  Elena Vlahu-Gjorgievska, Phyu Thant Hlaing Khin, Khin Than Win

### Session 3: Grand Challenges

- Future Directions for Behavior Change Support Systems 117-126
  Sriram Iyengar, Rosanna E. Guadagno, Alberto F. Olivieri, Jaap Ham, Harri Oinas-Kukkonen

2026-03-10: submitted by Sharon Nabwire, metadata incl. bibliographic data published under Creative Commons CC0
2026-04-23: published on CEUR Workshop Proceedings (CEUR-WS.org, ISSN 1613-0073) |valid HTML5|