| 词条 | Business object |
| 释义 |
A business object is an entity within a multitiered software application that works in conjunction with the data access and business logic layers to transport data.{{cn|date=January 2016}} FunctionWhereas a program may implement classes, which typically end in objects managing or executing behaviors, a business object usually does nothing itself but holds a set of instance variables or properties, also known as attributes, and associations with other business objects, weaving a map of objects representing the business relationships. A domain model where business objects do not have behaviour is called an anemic domain model. Business objects separate state from behavior because they are communicated across the tiers in a multi-tiered system, while the real work of the application is done in the business tier and does not move across the tiers. ExamplesFor example, a "Manager" would be a business object where its attributes can be "Name", "Second name", "Age", "Area", "Country" and it could hold an 1-n association with its employees (a collection of Employee instances). Another example would be a concept like "Process" having "Identifier", "Name", "Start date", "End date" and "Kind" attributes and holding an association with the "Employee" (the responsible) that started it. See also
References
External links
1 : Programming constructs |
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