Example: Architectural Mechanism Attributes |  |
This example illustrates how to represent attributes for Architecture Mechanisms.
Relationships
Related Elements | Analysis Mechanism Architectural Mechanisms
Description
Main Description | The following shows an example of how to capture information for Architectural Mechanismss. The attributes of two possible mechanisms are shown: Persistence and Communication. # Persistence For all classes with instances that may become persistent, you need to identify: Granularity: What is the range of size of the objects to keep persistent? Volume: How many objects (number) do you need to keep persistent? Duration: How long does the object typically need to be kept? Retrieval mechanism: How is a given object uniquely identified and retrieved? Update frequency: Are the objects more or less constant? Are they permanently updated? Reliability: Do the objects need to survive a crash of the process, the processor, or the whole system? # Communication For all model elements that need to communicate with components or services that are running in other processes or threads, you need to identify: Latency: How fast must processes communicate with another? Synchronicity: Asynchronous communication Size of message: A spectrum might be more appropriate than a single number Protocol: Flow control, buffering, and so on Notice that there is no design-level information or specification here. Instead, this is more about collating and refining architecturally significant requirements.
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