CENTRAL COMPUTER SOFTWARE DESIGN FOR A LARGE SCALE ADVANCED TRAFFIC AND FACILITIES MANAGEMENT SYSTEM

To ensure the successful deployment of advanced traffic and facilities management systems, the software design, development, and implementation process must be based on a structured methodology. The need for a structured approach has become increasingly critical due to the enormous amount of information and control complexity that real-time systems are being required to handle. This paper will discuss one project's specific application of a structured methodology to breakdown a complex real-time system into basic requirements; and further apply a proven approach to monitor the development and implementation of the software. The Central Artery/Tunnel (CA/T) Project in Boston, Massachusetts, has designed and will implement a Central Computer System (CCS) utilizing a structured approach. The design effort was based on the development of a logic model for the CCS. The modeling process began at the highest level of system functionality and was gradually "decomposed" into discrete basic or "primitive" functions. The primitive functions and their associated data requirements (both inputs and outputs) constitute the basic requirements explicitly defined in a functional specification developed for the CCS software.

Language

  • English

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 386-395

Subject/Index Terms

Filing Info

  • Accession Number: 00724756
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 14 1996 12:00AM