Determine Areas of Responsibility
Collect all business use-case realizations in which the business entity participates. Make sure you have access to
descriptions of business workers that access the business entity, as well as to descriptions of other business entities
that have some relationship to it. The Responsibility Description of the business entity must include the entity's role
in the business, as well as its lifecycle from creation to deletion. You can document the lifecycle with a statechart
diagram (see Guideline: Diagrams in the Business Analysis Model).
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Define Operations
Decide what operations the business entity should have. Base your decisions on the operations of the business entity
within each business use-case realization in which it participates. These operations provide tools for the business
workers to access the business entity. Briefly describe each operation.
Finalize the Responsibility Description, and explain how all operations are related, including the business entity's
lifecycle.
See also Guideline: Business Entity, the discussion on operations.
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Define Attributes
Identify and briefly describe the attributes of the business entity. Attributes are either properties of the business
entity or any information that it requires to perform its responsibilities that is not another business entity. An item
of information that needs to be determined or calculated (on-demand) must be presented in the form of an operation,
rather than as an attribute of the business entity. Attributes represent persistent properties of the business entity.
See also Guideline: Business Entity, the discussion of attributes.
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Identify Business Events
Inspect the business entity's operations. Candidate business events include significant changes of state (for example,
a target that changes from tracking to locked, or a proposal that changes from proposed to accepted). Operations
that trigger these changes of state might send these business events. Also consider what business actors, business
workers, or other business entities should be notified of the business event. Inspect the business entity's
relationships with other business entities. Are there any important changes in these related entities of which the
business entity should be notified?
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Analyze Relationships
Review all relationships (association, dependency, generalization) in which the business entity participates. Are the
purposes and semantics of these relationships clear? Be wary of many generalization relationships among business
entities. Determine whether these relationships are really necessary to the performance of the business entity's
responsibilities. Also confirm that the business entity does indeed have all the necessary relationships.
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Evaluate Your Results
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