Compositional semantics of a real-time prototyping language
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Authors
Kramer, Bernd
Luqi
Berzins, Valdis
Subjects
Algebraic high-level Petri nets
distributed systems
formal semantics
real-time systems
specification and design
time constraints
distributed systems
formal semantics
real-time systems
specification and design
time constraints
Advisors
Date of Issue
1993-05
Date
Publisher
Language
Abstract
formal semantics of a prototyping language for
hard real-time systems, PSDL, is given. PSDL provides a data
flow notation augmented by application-orientation timing and
control constraints to describe a system as a hierarchy of networks
of processing units communicating via data streams. The
semantics of PSDL is defined in terms of algebraic high-level
Petri nets. This formalism combines algebraic specifications of
abstract data types with process and concurrency concepts of
Petri nets. Its data abstraction facilities are used to define the
meaning of PSDL data types, while high-level Petri nets serve to
model the casual and timing behavior of a system. The net model
exposes potential concurrency of computation and makes all
synchronization needs implied by timing and control constraints
explicit and precise. Time is treated as state of clocks, and clocks
are modeled as ordinary system components. The net semantics
provides the basis for applying analysis techniques and semantic
tools available for high-level Petri nets.
Type
Article
Description
Series/Report No
Department
Computer Science (CS)
Organization
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Format
Citation
IEEE Transactions on Software Engineering, Vol. 19, No. 5, May 1993.
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.