New Model

We are happy to welcome Ezra, son of Levi, as the most recent addition to the One Fact team and the xtUML modeling community.  He was born January 21 weighing 7 pounds 1 ounce and 21 inches long.


MT-CPS’18 3d International Workshop on Monitoring and Testing of Cyber-Physical Systems Porto, Portugal, USA 10 April 2018 Co-located with CPS Week DESCRIPTION Cyber-physical systems (CPS) are integrations of heterogeneous collaborative entities that interact among themselves and with their physical environment. CPS exhibit complex and unpredictable behaviors, thus making their correctness and robustness analysis a
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MODELS 2017 EXE and MDETools

MODELS continues to be the best modeling conference in the world.  It has a good mix of academic and industrial involvement.  Satellite workshops with special focus precede the larger conference.  xtUML and Shlaer-Mellor development are perennially represented.  This year Cortland Starrett served on the program committee for the EXE (Executable Modeling) workshop and participated as
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Model-Based Testing of Self-Driving Cars

Self-driving cars pose challenges to testing. The quantity and magnitude of sensor inputs create an enormous test vector space. Traditional manual testing methods are inadequate to cover this multi-dimensional vector space with test cases. To address this challenge model-based techniques are applied to manage the testing complexity. Abstraction and automation increase the productivity of test
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