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use case analysis
subject			fact

use case analysis	assists a software engineer to define the tasks that the user interface must help the user perform
	can be used to determine responsibilities
	can be used to eliminate proposed functionality if the functionality does not support any use case
	can help define the scope of the system, i.e. what the system must do and does not have to do
	has definition The process of dividing up the functionality of the system into use cases, and determining the relationships among those use cases
	does not cover all aspects of software, such as an activity that is internal to a system
	has procedure determine the classes of users (or other systems) that will use the facilities of this system to determine the tasks that each actor will need to do with the system break each use case down into more detail
	has purpose to model the system from the point of view of how users or other systems interact with this system when trying to achieve their objectives
	helps developers model different user roles
	is an intuitive way to understand and organize what the system should do, since it is based on user tasks and expresses the tasks in natural language
	is similar to task analysis
	is useful for requirements analysis
	is a subtopic of 7.3 - Developing Use Case Models of Systems
	is a kind of analysis
process	see also process^2