Architectural Modeling Component Diagram Common Modeling Techniques

Common Modeling Techniques

Modeling Source Code

To model a system's source code,

Either by forward or reverse engineering, identify the set of source code files of interest and model them as components stereotyped as files
For larger systems, use packages to show groups of source code files
Consider exposing a tagged value indicating such information as the version number of the source code file, its author and the date it was last changed
Use tools to manage the value of this tag
Model the compilation dependencies among the source files using dependencies
Where possible, use tools to help generate and manage these dependencies

Modeling Executable Release

To model an executable release,

Identify the set of artifacts you want to model
Typically, this will involve some or all the components that live on one node, or the distribution of these sets of components across all the nodes in the system
Consider the stereotype of each component in this set
For most systems, you will find a small number of different kinds of components (such as executable's libraries, tables, files and documents)
Using extensibility mechanisms, provide visual cues for these stereotypes
For each component in this set, consider its relationship to its neighbors
Most often, this will involve interfaces that are exported (realized) by certain components and then imported (used) by others

Modeling a Physical Database

To model a physical database,

Identify the classes in the model that represent your logical database schema i.e., the objects of those classes need to be persistent
Select a strategy for mapping these classes to tables
You will also want to consider the physical distribution of your databases
Based on the location in which the data needs to live in the deployed, map physical distribution of the databases
To visualize, specify, construct and document the mapping, create a component diagram that contains components stereotyped as tables
Where possible, use tools to transform the logical design into a physical design

Modeling Adaptable Systems

To model an adaptable system,

Consider the physical distribution of the components that may migrate from node to node
You can specify the location of a component instance by marking it with a location attribute, which you can then render in a component diagram
If you want to model the actions that cause a component migrate, create a corresponding interaction diagram that contains component instances
You can illustrate a change of location by drawing the same instance more than once, but with different values for its state, which includes its location

CSE Study Material