Modelling off-the-shelf information systems requirements: An ontological approach

P. Soffer, B. Golany, D. Dori, Y. Wand

Research output: Contribution to journalArticlepeer-review


Requirements for choosing off-the-shelf information systems (OISR) differ from requirements for development of new information systems in that they do not necessarily provide complete specifications, thus allowing flexibility in matching an existing IS to the stated needs. We present a framework for OISR conceptual models that consists of four essential elements: business processes, business rules, information objects and required system services. We formalise the definitions of these concepts based on an ontological model. The ontology-based OISR model provides a framework to evaluate modelling languages on how appropriate they are for OISR requirements specifications. The evaluation framework is applied to the Object-Process Methodology, and its results are compared with a similar evaluation of ARIS. This comparison demonstrates the effectiveness of the ontological framework for evaluating modelling tools on how well they can guide selection, implementation and integration of purchased software packages.

Original languageEnglish
Pages (from-to)183-199
Number of pages17
JournalRequirements Engineering
Issue number3
StatePublished - 2001
Externally publishedYes


  • Conceptual model
  • Object-process methodology
  • Off-the-shelf information systems
  • Ontology
  • Requirements specification

ASJC Scopus subject areas

  • Software
  • Information Systems


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