lecture15-16 User Interface 2

lecture15-16 User Interface 2 - User Interface Design II...

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User Interface Design II
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Input Design – Basic Principles The goal is to simply and easily capture accurate information for the system Reflect the nature of the inputs Find ways to simplify their collection
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Online versus Batch Processing Online processing immediately records the transaction in the appropriate database Batch processing collects inputs over time and enters them into the system at one time in a batch Batch processing simplifies data communications and other processes, but means that inventory and other reports are not accurate in real time
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Minimize Keystrokes Never ask for information that can be obtained in another way List selection is more efficient than entering information Use default values where possible
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Types of Inputs Data items linked to fields Text Numbers Selection boxes
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Types of Input Boxes
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Types of Input Validation Types of Validation Completeness check Format check Range check Check digit check Consistency check Database checks When Would You Use Each of These  Validation Methods?
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