review of related literature about billing system
this article series, too, shifting our attention from OMG's UML 1.4 Specification to OMG's Adopted 2.0 Draft Specification of UML (a.k.a. UML 2). I hate to change emphasis from 1.4 to 2.0 in the middle of a series of articles, but the UML 2.0 Draft Specification is an important step forward, and I feel the need to spread the word.
There were a couple of reasons that the OMG improved UML. The main reason was that they wanted UML models to be capable of delivering Model Driven Architecture (MDA), which meant that the UML had to function as a more model driven notation. Also, the UML 1.x notation set was at times difficult to apply to larger applications. Furthermore, the notation elements needed to be improved in order to make diagrams more readable. (For example, modeling logical flow in UML 1.x was complicated and at times impossible. Changes to the sequence diagram's notation set in UML 2 have made vast improvements in modeling logic in sequences.)
Resources we think you'll like
IBM Rational Software Architect wiki
Evaluate: IBM Rational Software Architect V8 for 30 days
Create editable sequence diagram with Rational Software Architect
Create editable sequence diagrams with Rational Software Architect
What's new in Rational Software Architect 8.5 and Design Manager 4 beta
Notice the wording in my statement above: "Adopted 2.0 Draft Specification of UML." It is true that the specification is still in draft status, but the key is that the Draft Specification has been adopted by OMG, a consortium that does not adopt new standards until they become pretty solid. There will be some changes to the specification before UML 2 is completely adopted, but these changes should be minimal. The main changes will be in the internals of UML--involving features typically used by software companies who implement UML tools.
The main purpose of this article is to continue our focus on the essential UML diagrams; this month, we take a close look at the sequence diagram.
There were a couple of reasons that the OMG improved UML. The main reason was that they wanted UML models to be capable of delivering Model Driven Architecture (MDA), which meant that the UML had to function as a more model driven notation. Also, the UML 1.x notation set was at times difficult to apply to larger applications. Furthermore, the notation elements needed to be improved in order to make diagrams more readable. (For example, modeling logical flow in UML 1.x was complicated and at times impossible. Changes to the sequence diagram's notation set in UML 2 have made vast improvements in modeling logic in sequences.)
Resources we think you'll like
IBM Rational Software Architect wiki
Evaluate: IBM Rational Software Architect V8 for 30 days
Create editable sequence diagram with Rational Software Architect
Create editable sequence diagrams with Rational Software Architect
What's new in Rational Software Architect 8.5 and Design Manager 4 beta
Notice the wording in my statement above: "Adopted 2.0 Draft Specification of UML." It is true that the specification is still in draft status, but the key is that the Draft Specification has been adopted by OMG, a consortium that does not adopt new standards until they become pretty solid. There will be some changes to the specification before UML 2 is completely adopted, but these changes should be minimal. The main changes will be in the internals of UML--involving features typically used by software companies who implement UML tools.
The main purpose of this article is to continue our focus on the essential UML diagrams; this month, we take a close look at the sequence diagram.