John Krogstie
John Krogstie | |
|---|---|
| Born | May 23, 1967 Norway |
| Occupation(s) | Computer scientist, professor of information systems |
| Years active | 1991–present |
| Known for | Enterprise modelling, SEQUAL framework |
| Notable work | Perspectives to Process Modeling (2013) |
John Krogstie (born 23 May 1967) is a Norwegian expert in computer science and holds a professorship in information systems at the Norwegian University of Science and Technology (NTNU) located in Trondheim, Norway. He is recognized for his specialization in enterprise modelling.
Biography
Krogstie completed his MSc degree in 1991 and subsequently obtained a PhD in 1995, both in the field of information systems from NTNU. Between 1991 and 2000, he served as a manager at Accenture, after which he took on the position of senior researcher at SINTEF from 2000 to 2005. Presently, he is a professor at NTNU.
He acts as Norway’s representative in IFIP TC8 and led IFIP WG 8.1, the working group focused on information systems design and evaluation, from 2010 until 2015.
Work
Krogstie’s research areas include information systems, conceptual modeling, mobile information systems, eGovernment initiatives, and enterprise modelling.
The SEQUAL framework
Krogstie developed the SEQUAL framework, a reference model designed to evaluate the quality of models drawing on semiotic theory, particularly influenced by Charles W. Morris. This framework examines the connections among models, knowledge bases, domains, modeling languages, as well as activities such as learning and practical application.
Initially introduced as three quality dimensions—syntactic, semantic, and pragmatic—in a 1994 publication by Lindland et al., Krogstie expanded this into the SEQUAL framework in 1995. Subsequent improvements in 2002 integrated additional levels inspired by Stamper’s semiotic ladder. The framework has been empirically validated and continues to be a significant tool for assessing conceptual model quality within enterprise modelling.
Perspectives to Process Modeling, 2013
The article Perspectives to Process Modeling (2013) provides an overview of business process modeling by categorizing principal approaches according to different modeling perspectives: behavioral, functional, structural, goal-oriented, object-oriented, language action, organizational, and geographical viewpoints.
See also
Publications
Since 1991, Krogstie has published approximately 150 peer-reviewed articles. Notable books include:
- 2005. Information modeling methods and methodologies, edited alongside Terry Halpin and Keng Siau.
- 2007. Conceptual Modelling in Information Systems Engineering, co-authored with Andreas Lothe Opdahl and Sjaak Brinkkemper.
- 2008. Active Knowledge Modeling of Enterprises, written with Frank Lillehagen. Published by Springer.
External links
- Official homepage at the Norwegian University of Science and Technology (NTNU), Trondheim, Norway.
- Pages with script errors
- Articles with short description
- Articles with hCards
- No local image but image on Wikidata
- 1967 births
- Living people
- Accenture people
- Enterprise modelling experts
- Information systems researchers
- Norwegian computer scientists
- Norwegian University of Science and Technology alumni
- Academic staff of the Norwegian University of Science and Technology
- Software engineering researchers