Issues in Building Dynamic Real-Time Systems

  • Authors:
  • Swaminathan Natarajan;Wei Zhao

  • Affiliations:
  • -;-

  • Venue:
  • IEEE Software
  • Year:
  • 1992

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Abstract

The issues involved in building dynamic, hard real-time systems, in which resource availability and requirements are not fixed, are discussed. It is shown that the problem of ensuring timing correctness in dynamic real-time systems has three aspects: resource requirements, resource availability, and guarantees. These issues overlap, and a single mechanism or technique may address several issues. The R-Shell, an object-oriented framework that structures resources in a class hierarchy so that they can be selected or substituted dynamically is described.