IBM SG24-7368-00 manual Views, Transformation methods

Views

Views constitute the intersection of viewpoints and model levels. Views contain artifacts (that is, objects used to document engineering data) that describe how the viewpoint’s engineering concern is addressed at a particular model level.

Table 2-3includes a sample set of view artifacts. In practice, each program chooses the view artifacts that meet its individual needs. The project’s set of view artifacts is what the RUP calls the development case, which includes the choice of artifacts and prescriptive guidance on how to document them, along with guidelines, templates, and checklists.

The framework might leave the impression that the views contain unrelated artifacts. In reality, there are many relationships between the artifacts. These relationships are captured in the MDSD meta model.6

Table 2-3 RUP SE architecture framework (cells shows sample model views)

Model			Model viewpoints
levels
	Worker	Logical	Information	Distribution	Process	Geometric
Context	Role	Use case	Enterprise	Domain-		Domain-
	definition,	diagram	data view	dependent		dependent
	activity	specification		views		views
	modeling
Analysis	Partitioning	Product logical	Product data	Product	Product	Layouts
	of system	decomposition	conceptual	locality view	process
			schema		view
Design	Operator	Software	Product data	ECM	Timing	MCAD
	instructions	component	schema	(electronic	diagrams	(mechanical
		design		control		computer-
				media)		assisted
				design		design)
Implemen-	Hardware and software configuration
tation

Transformation methods

MDSD includes novel, related artifacts for transformation methods between model levels. The generation of these artifacts and their relationships requires new techniques. These techniques are described next.

6See footnote 7 on page 5

28Model Driven Systems Development with Rational Products