A conceptual approach for modelling system development projects

Israel Spiegler*, Levi Tsirulnikov

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The paper proposes a conceptual model for describing and managing system development projects. The model provides a structured way to subdivide projects into tasks and a tool for measuring a priori the level of control needed to manage projects in information system and other areas. A Project Basic Unit (PBU) is defined as the main building block used to describe various levels of a project hierarchy. Project phasing, the subdivision of higher PBUs into lower level ones, is investigated. Criteria for project phasing which is an important element of managing projects, are outlined and discussed. The area of project control where one person performs more than one project role, called coresidence, is also presented. This phenomenon is a frequent cause of lack of control and malfunctions in system development projects.

Original languageEnglish
Pages (from-to)349-357
Number of pages9
JournalHuman Systems Management
Issue number4
StatePublished - 1988


  • Coresidence
  • Information system
  • Management control
  • Project management
  • Project phasing
  • System development


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