Mount Kilimanjaro
An eight-day trek to the summit of Mount Kilimanjaro, organized by One Fact.
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Articles & notes.
Ideas, technical notes, announcements, and stories from the One Fact archive.
Textual Persistence
A proposal for textual semantic xtUML notation, model persistence, and exchange.
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Model-Driven Test with TAME
Marc Balcer presents model-driven test-case generation with TAME at xtUML Days 2020 UK.
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Panda – Open Source Development
An example of project sponsorship supporting open-source BridgePoint development.
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MC-Generated Auto-Dispose
How explicit xtUML associations can enable a model compiler to generate cascading instance cleanup.
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HOWTO Connect to xtUML
A short guide to finding and joining the xtUML community online.
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Diagram and Element Types
An overview of diagram types supported by BridgePoint for xtUML, UML, and SysML modeling.
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xtUML Days 2020 Save-the-Date
An archived announcement for the planned November 2020 xtUML Days UK event.
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OAL, MASL and now ASL
A 2020 preview of an ASL syntax-highlighting editor alongside BridgePoint's OAL and MASL action languages.
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Color Your Model
Using color and layers in BridgePoint models to communicate information and manage diagram visibility.
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Dawn of Ciera
Announcing the first production release of Ciera 2.0.0, a Java code generator for BridgePoint and xtUML.
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OOA of MASL
A look at a metamodel of MASL and its semantic relationship to the xtUML OOA of OOA.
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Do I Need BridgePoint Pro?
A historical explanation of the distinction between BridgePoint nightly builds and the supported BridgePoint Pro release process.
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Requirement Tracing
Three approaches to tracing requirements through xtUML models, model identifiers, and configuration-management commits.
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xtUML in the Field
A case study of xtUML in an agricultural soil-sampling robot, including navigation, guidance, and model-based control.
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Java and BridgePoint
A 2019 BridgePoint packaging change prompted by Oracle Java licensing terms.
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Shlaer-Mellor Runtime
An explanation of runtime semantics in the Shlaer-Mellor method, including event ordering and a modeled dispatcher architecture.
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Saab Coming to West Lafayette
A 2019 announcement about Saab's planned West Lafayette site near Purdue University and One Fact.
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State Diagram, State Table
Two complementary ways to represent the behavior of a finite-state machine in an executable UML model.
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Continuous Integration
A lightweight, automated engineering workflow connecting issue tracking, Git branches, pull requests, builds, tests, and releases.
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Amazon Web Services (AWS) Lambda
A demonstration of model-driven generation targeting AWS Lambda, API Gateway, and DynamoDB.
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Model-Based Testing of Self-Driving Cars
How model-based test engineering can address the enormous sensor-input space in autonomous-vehicle testing.
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Issue Tracking with Redmine
A historical note on the xtUML team's use of Redmine for customer service requests and community bug tracking.
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Action Language Fundamentals
A concise categorization of five fundamental kinds of action in a model-aware action language.
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Action Language
An introduction to action languages as abstract, model-aware programming languages.
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Stevenson Screen (Weather Station)
An xtUML model that allocates the functions of a weather station, its sensors, deployment, and MQTT-based communication.
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Incremental, Always Advancing
Why incremental, tested engineering steps help preserve working software and valuable model intellectual property.
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Model Translation FAQs
An introduction to the model translation and model compiler topics added to the BridgePoint developer FAQ.
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BridgePoint is moving to Eclipse 4.4 (Luna)
A 2015 update on the planned move of BridgePoint to the Eclipse Luna platform.
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Modeling Domain Specific Languages
How executable models can define the vocabulary, behavior, and runtime population of a language tailored to a particular domain.
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Getting Started with GitHub
A historical introduction to accessing the BridgePoint source repositories on GitHub and getting started with Git and eGit.
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Blood Pressure Cuff
A classroom example showing how a learner captured the behavior of a blood pressure cuff first on paper and then as an executable UML model.
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