2_Prototype_RAD - Major Topics Prototyping concepts Types...

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Major Topics Prototyping concepts Types of prototypes Prototyping and the systems  development life cycle Prototype development guidelines Prototype evaluation Rapid application development (RAD)
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Prototyping Prototyping is an information-gathering  technique Prototypes are useful in seeking user  reactions, suggestions, innovations, and  revision plans Prototyping may be used as an  alternative to the systems development  life cycle
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Initial User Reactions Reactions must be gathered from users There are three types User suggestions Innovations Revision plans
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Four Kinds of Prototypes There are four conceptions of  prototypes: Patched-up prototype Non-operational scale model First full-scale model Prototype which contain only some of the  essential system features
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Patched-up Prototype This is a working model with all the  features but is inefficient Users can interact with the system Storage and retrieval of data may be  inefficient Workable but inefficient May contain only basic features 
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Nonoperational Scale Models A nonoperational scale mode is one  which is not operational, except for  certain features to be tested  Prototype input and output
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Create a pilot system An operation model Useful when many installations of the  same information system are planned An example is a system to be installed 
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2_Prototype_RAD - Major Topics Prototyping concepts Types...

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