| 摘要 |
An activity based notational system defines actions (or processes) occurring between a user and a system using only four classes. Inputters describe data provided by the user to the system, and Outputters are the inverse of Inputters. Selectors describe items provided to the user by the system and the subsequent selection of those items by the user. Invokers describe a user action that changes the system's state without involving an exchange of data. In one embodiment, the notation is used to enable GUI forms to be automatically generated from a flow diagram. In other embodiments, a flow diagram is automatically generated when a GUI form created or modified, test scripts based on the notation in a diagram are generated and executed, test simulations of the system are executed, production of hardware components is controlled by a CAD drawing, and the scope of a flow diagram is determined.
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