Operational Support vs. Predator

After a poll on Facebook and Twitter, the name of the new version of operational support was determined to appropriately be Operational Support vs. Predator — it may seem like we are just cashing in on two fan-bases, but, hey, if it sells! MichaelTime person of the year 2006, Nobel Peace Prize winner 2012. westergaard.eu/ […]

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Introduction to CPN Tools

I’ve been doing demonstrations of CPN Tools for almost 10 years now. At first, I did demonstrations with Troels Bjerre Sørensen and later alone. Next week, I’m chairing a hands-on session with CPN Tools, and rather than doing demos again, I decided to condense some material from the CPN Tools help pages (old version here) […]

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Real Time and Transition Priorities in CPN Tools

Some months ago, Eric Verbeek and I worked together on adding a couple features to CPN Tools with the primary focus of getting Eric started with maintaining CPN Tools.  Today I released a new version of CPN Tools with those features, namely real time stamps and transition priorities.  See the demo here: Note that whenever […]

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Memory Leaks in Java Code

I’m working on some Java code I’ve inherited.  I’m doing some speed improvements in critical places, and to test my improvements, I need test cases to compare different implementations.  Unfortunately, manually generating test cases is way too time consuming (need need thousands and generating one manually takes minutes or even hours).  Unfortunately, randomly generated test […]

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