What are Business Objects and what is Business Logic?

business-logic
devoured elysium picture devoured elysium · Jul 18, 2010 · Viewed 29k times · Source

When reading, I keep seeing references to what they call Business Objects. I've looked up on Wikipedia and such but I keep not getting what a Business Object is.

Is there any easy explanation of what it is for someone that doesn't know a thing about software architecture and such?

Also, what is Business Logic?

Answer

bobah picture bobah · Jul 18, 2010

This is easy

Every entity in the system, representing the human-world object which the system is expected to interact with is a business object.

The human-world logic in the system around manipulating business objects is a business logic.

This is opposed to the objects and logic being part of the implementation details.

For example in the multi-tier trading system order/trade will be business objects, but heartbeat will be implementation detail.

The logic of encoding order/trade objects for streaming will be implementation detail, while the logic of changing the order state to 'completed' once trade arrives is a business logic.

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