Project Summary
Ptolemy II is a software framework developed as part of the Ptolemy Project. It is a Java-based component assembly framework with a graphical user interface called Vergil. Vergil itself is a component assembly defined in Ptolemy II.
The Ptolemy project studies modeling, simulation, and design of concurrent, real-time, embedded systems. The focus is on assembly of concurrent components. The key underlying principle in the project is the use of well-defined models of computation that govern the interactions between components. A major problem area being addressed is the use of heterogeneous mixtures of models of computation.
The work is conducted in the EECS Department of the University of California, Berkeley.
In a Nutshell, Ptolemy II...
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has a well established, mature codebase
maintained by a small development team
with increasing Y-O-Y commits -
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took an estimated 1,181 years of effort (COCOMO model)
starting with its first commit in December, 1996
ending with its most recent commit 3 months ago
Quick Reference
BSD 3-clause "New" or "Revised" License
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These details are provided for information only. No information here is legal advice and should not be used as such.
This Project has No vulnerabilities Reported Against it
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30 Day SummaryFeb 5 2026 — Mar 7 2026
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12 Month SummaryMar 7 2025 — Mar 7 2026
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