Category Archives: UMLSchool

Ditch Sparx today

This article was moved to MDriven Wiki – Ditch Sparx today Get insights into how UML is supposed to be used to fully understand business needs and to build complete verifiable specifications for software.

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OCL by example

This article was moved to MDriven Wiki – OCL by example Three videos to de-mystify OCL. A simple model and some expressions working on it for different purposes. The videos make use of the new OCL editor that has been … Continue reading

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Constraints

This article was moved to MDriven Wiki – Constraints There are other ways to introduce business rules in the model than using state machines and guards. You can also use constraints. The model already has a lot of implicit constraints … Continue reading

Posted in MDrivenDesigner, OCL, UML, UMLSchool | 1 Comment

UML – State machines

This article was moved to MDriven Wiki – Short introduction to UML– class diagram If the classes of your model define the statics we are now left with dealing with the dynamics of the domain. With the dynamics I mean … Continue reading

Posted in MDrivenServer, OCL, UML, UMLSchool | 1 Comment

Short introduction to UML– class diagram

This article was moved to MDriven Wiki – UML – State machines UML class diagram is the preferred way to describe information. A UML class diagram shows classes and their relations. A Class differs from an Object. The Object is … Continue reading

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Derived attributes & associations

This article was moved to MDriven Wiki – Derived attributes & associations Derived attributes has been in ECO for ages . To a SQL-guy derived attributes resemble calculated fields. Derived attributes are just like calculated fields that subscribe to all … Continue reading

Posted in Derive, UML, UMLSchool | 1 Comment

UML Inheritance

This article was moved to MDriven Wiki – UML Inheritance With the ambition to make it easy for people to benefit from object oriented approaches using eco and gaffr.net I will in this post give a quick introduction to UML … Continue reading

Posted in UML, UMLSchool | 1 Comment

Association classes

This article was moved to MDriven Wiki – Association classes Associations define relationship between Classes. Whenever you need some additional information on that relationship an association class will come in handy. Model1:   Even if the Association class is mostly … Continue reading

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Composite and Aggregate and what they imply

This article was moved to MDriven Wiki – Composite and Aggregate and what they imply Associations between classes are easy enough to understand; Car has 4 wheels But in the information system we build it may be obvious that a … Continue reading

Posted in UML, UMLSchool | 2 Comments