Software Engineering

8.2.2 
Identify operational scenarios
The operational concept should be expanded to identify the range of the anticipated 
uses of the software application in terms of operating scenarios. For each operational 
scenario, the expected interactions with other systems, products, or users should be 
defined. The business rules for each transaction should be captured and expressed as 
control decision logic. In addition, each operational scenario should address the pos-
sible situations that may prevent a transaction from being completed successfully, and 
identify the need for transaction rollback procedures. (Note: This represents a derived 
requirement that may not have been addressed in the original set of requirements.)
Troubleshooting diagnostics threads should be identified given that most computer-
ized systems have some form of automated diagnostics. These troubleshooting threads 

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