Evolving Information Systems: Beyond Temporal Information Systems

摘要

The need for information systems which are capable of evolving to the same extentas organizations do is discussed. Requirements of evolving organizations on their information systems are identified, and this is followed by alternative approaches to adequate information systems development life cycles. An evolutionary approach which results in so called evolving information systems is adopted. On the basis of requirements and an architecture for these evolving information systems, the distinction from traditional information systems is explained. Traditional information systems, including temporal information systems, appear to be degenerations of our evolving informations systems. A conceptual framework for update on evolving information systems is derived from the requirements. An event level, a recording level, and a correction level are distinguished in this framework for update.