CHAPTER 4The XCellR8™ Approach: The Event Entity Relationship Diagram and Data Attribution

Now that you know how to develop an event process model, let’s look at the other components that should be included in the business requirements document.

The Event Entity Relationship Diagram

The event entity relationship diagram (EERD) illustrates the relationships between the objects identified in an event process model. The main purpose of the EERD is to help us identify missing requirements. Missing requirements are the hardest requirements errors to correct.1 (Similarly, if a required object is not present in a business event, its absence will prevent us from responding appropriately to the business event.)

The EERD will help you understand the different ...

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