What is the initial state for an xtUML state machine? Follow discussion on the xtuml.org forum here: xtuml.org/community/topic/initial-state/
xtUML Day 2017 UK is in the books! Thank you to all participants for making the event an overwhelming success. Presentations and discussions included moving toward a unified Mellor/Carter method (changes to polymorphic events and referential identifiers), ideas about improved user experience, and discussion of a type system in xtUML. Check out the presentations at:
-> Continue reading xtUML Day 2017 UK
BridgePoint is built and tested under Jenkins (heir to Hudson). Maven and Tycho do the heavy lifting for the builds. JUnit drives more than 7000 unit tests. A combination of shell scripts runs a set of round-trip import/export/compare tests. Results are automatically published to the nightly build site (https://xtuml.org/download/).
Trevor Mahlmann made this during Monday night’s incredible sunset at Purdue with his DJI Mavic Pro quadcopter.
One Fact is part of the Greater Lafayette Commerce Business Expo.
Self-Driving cars seemed to be so far in the future. However, we already have cars that can parallel park, avoid obstacles and even change lanes on the freeway. With accelerometers, GPS and LiDAR, a control system can assist you in making a safe lane change.
Eta Kappa Nu is the electrical engineering honor society of the IEEE
The richest source of information about xtUML is found on xtuml.org. Specifically, there is a ‘Learn’ menu item with all kinds of resources. Books: xtuml.org/learn/books/ For a high-level overview, I recommend MDA Distilled. For deeper Executable UML, I recommend Mellor/Balcer and then Rastrick. Articles: xtuml.org/learn/articles/ Training Course: An interactive online training course is available that
-> Continue reading xtUML Resources
Look for One Fact at various conferences, on campuses and in cities near you. Lafayette, Purdue, Austin, UK and Japan are planned. Discuss Shlaer-Mellor development and xtUML… and maybe pick up some cool 1F swag!
A referential attribute (aka foreign key) is an attribute that refers to another attribute which is an identifier (aka key) in another class. Shlaer-Mellor supports the concept of combining two referential attributes that must always have the same value. This is a powerful way to constrain the data set represented in your model. This concept can
-> Continue reading Collapsed Referential