June 1987 - Vol. 30 No. 6
Features
Electronic markets and electronic hierarchies
By reducing the costs of coordination, information technology will lead to an overall shift toward proportionately more use of markets—rather than…
Power over users: its exercise by system professionals
Analysis and awareness of the types of power that IS professionals exercise over users can improve the productivity of both parties.
Systems analysis: a systemic analysis of a conceptual model
Adopting an appropriate model for systems analysis, by avoiding a narrow focus on the requirements specification and increasing the use of the systems analyst's knowledge…
A versatile data structure for edge-oriented graph algorithms
An abstract graph module that allows for easy and secure programming of a great number of graph algorithms is implemented by symmetrically stored forward and backward…
Arithmetic coding for data compression
The state of the art in data compression is arithmetic coding, not the better-known Huffman method. Arithmetic coding gives greater compression, is faster for adaptive…
Rule-based versus structure-based models for explaining and generating expert behavior
Flexible representations are required in order to understand and generate expert behavior. Although production rules with quantifiers can encode experiential knowledge,…
Relationships between selected organizational factors and systems development
Three organizational variables influence the quality of the system development process: available resources (both human and financial), external influences on the…