Ptolemy II- Heterogeneous Concurrent Modeling and Design in Java

Researchers: John Davis, II, Chamberlain Fong, Christopher Hylands, Bart Kienhuis, Bilung Lee, Edward A. Lee, Jie Liu, Xiaojun Liu, Steve Neuendorffer, Shankar Rao, Claudius Ptolemaus, John Reekie, Mary P. Stewart, Jeff Tsay, Kees Vissers (Visiting Industrial Fellow), Brian Vogel and Yuhong Xiong.
Advisor:Edward A. Lee

Ptolemy II is a set of Java packages supporting heterogeneous, concurrent modeling, simulation, and design of component-based systems. The emphasis is on a clean, modular software architecture, divided into a set of coherent, comprehensible packages. The kernel package supports definition and manipulation of clustered hierarchical graphs, which are collections of entities and relations between those entities. The actor package extends the kernel so that entities have functionality and can communicate via the relations. The domains extend the actor package by imposing models of computation on the interaction between entities. Domains that have been created include: Domains that are planned include: The Ptolemy II software architecture supports interaction between domains (heterogeneous modeling). For example, FSM can be combined with CT to model hybrid systems.

Ptolemy II includes a number of support packages, such as

Last updated 11/05/99