John Krogstie

Professor of Information Systems at NTNU (Norwegian University of Science and Technology), Trondheim. Long-time editor and extender of the SEQUAL framework for conceptual-model quality.

Affiliation

NTNU, IDI (Department of Computer and Information Science) — current.
SINTEF ICT — senior advisor; previously employed 1991–2000 at Accenture.
Ph.D. (1995) from University of Trondheim; M.Sc. (1991) from NTNU.
Norwegian representative for IFIP TC8; vice-chair of IFIP WG 8.1 (Information Systems Design and Evaluation).

Why he matters here

Co-author of the revised SEQUAL framework (sources/2006-krogstie-sindre-jorgensen-revised-sequal-framework) — the theoretical scaffolding for what conceptual-model quality even means. SEQUAL underpins the syntactic/semantic/pragmatic tripartite that BPM textbooks (Dumas et al.) distil for practitioners.

His doctoral thesis (1995, Trondheim) and successive extensions (Krogstie et al. 1995; Krogstie & Jørgensen 2002; this 2006 paper) built the framework outward from Lindland-Sindre-Sølvberg's 1994 original to cover all eight levels of Stamper's semiotic ladder, then re-anchored it for active/interactive process models in 2006.

Contributions to BPM quality discourse

Active-model framing: models that change the reality they describe.
Articulation/activation dynamic — anticipates the read/write loop of agentic-BPM execution.
Three-flavour semantic quality (descriptive vs prescriptive vs perceived) — maps onto BPM's as-is vs to-be modelling.

entities/guttorm-sindre (co-author) · entities/havard-jorgensen (co-author) · concepts/sequal-framework · concepts/process-model-quality