Process Evolution for the MARVEL Environment

Abstract

We present a schema and process evolution tool, called the Evolver, for the MARVEL process-centered environment. The Evolver analyzes the differences between the new and installed process models of an existing environment, detecting each case where the notion of consistency defined by the process model has been strengthened or weakened. The Evolver then automatically updates the environment's object-base to guarantee that the objects are consistent according to the new specifications. ne Evolver can be applied while the installed process is in progress, temporarily halting normal operation while it updates the object-base, after which development continues using the new process. We have had several months of experience using the Evolver to make repeated changes in the process that supports our own further development of MARVEL, and include in this paper one small but practical example of a recent change made to a real MARVEL process.

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Document Details

Document Type
Technical Report
Publication Date
Nov 08, 1992
Accession Number
ADA267813

Entities

People

  • Gail E. Kaiser
  • George T. Heineman
  • Israel Z. Ben-shaul
  • John K. Hinsdale
  • Wilfredo Marrero

Organizations

  • Columbia University

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  • Complex Systems
  • Computer Programming
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Fields of Study

  • Computer science

Readers

  • Database Systems and Applications
  • Marine Ecological Systems Migration
  • Mathematical Modeling and Probability Theory.