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Principal Investigator: Edward A. Lee
Organization: University of California at Berkeley

Monthly and annual reports - Newsletter articles - Ptolemy Project - Publications - RASSP home page - Ptolemy HMAD Page

Ptolemy is part of the Technology Base Development of the ARPA's Rapid Prototyping of Application Specific Signal Processors (RASSP) program. The focus of this project is on design methodology for complex real-time systems where a variety of design methodologies and implementation technologies must be combined. Design methodologies are encapsulated in one or more "models of computation", while implementation technologies are implemented as synthesis tools. Applications that use more than one model of computation and/or more than one synthesis tool are said to be "heterogeneous".

The project aims to develop formal models for such heterogeneous systems, a software environment for the design of such systems, and synthesis technologies for implementation of such systems. In the latter category, we are concentrating on problems not already well addressed elsewhere, such as the synthesis of embedded software and the partitioning and scheduling of heterogeneous parallel systems.

Further Information

Last updated 12/07/97. Send comments to