The Ptolemy project focuses on system-level modeling, simulation, and design of reactive and embedded systems, providing high-level support for signal processing, communications, and real-time control. The key underlying principle in the project is the use of multiple concurrent models of computation in a hierarchical heterogeneous design environment. The work is conducted in the Department of Electrical Engineering and Computer Sciences of the University of California at Berkeley. The project is directed by Prof. Edward Lee. The project is named after Claudius Ptolemaeus, the second century Greek astronomer, mathematician, and geographer.

Places to Go

• The Ptolemy Miniconference was held on February 19, 1999. The viewgraphs are available - EE Times Article - Ptolemy II Demonstration Snapshot
• Ptolemy II - Heterogeneous Concurrent Modeling and Design in Java
• Overview of The Ptolemy Project
• Objectives
• Research
  Heterogeneous Modeling and Design Project
  Software Enabled Control
• Monthly and Annual reports
• Third Party Connections
• Ptolemy Frequently Asked Questions (FAQ)

Mirrors of this World Wide Web site exist in Japan and France. (In addition, there is an ftp mirror in France.)