Wednesday, April 22, 2009

Summary

   1. Input design shows how user-originated input is converted to a computer-based format. After input data are identified, appropriate input media are selected for processing.

   2. In addition to determining the record media, the analyst must decide how input is entered and the speed of data capture. The fastest method is online data entry through a menu, a formatted form, or a prompt. This requires a CRT screen for display and predefined user's options that standardize data capture and provide visual verification.

   3. Two approaches to designing data on a CRT screen are manual print. Layout charts and a software utility provided by the software vendor.
The latter method is more versatile, allowing for instant modifications directly on the screen.

   4. Standards for printed output suggest giving each output a name or title, providing a sample of the output layout, and specifying the procedure for proving the accuracy of the output data. The output devices to consider depend on the compatibility of the device with the system, response time requirements, and the printed quality required.

   5. A form is the physical carrier of data. It can carry authority for action. It is classified by what it does in the system. There are actions, memory, and report forms. In any case, a form is a tool with a message.

   6. In designing a form, attention is given to proper identification and wording, readability and use, composition and layout, order of data items, and clarity of instructions. For form duplication, one-time carbon or carbon-backed paper is chosen, depending on how the form will be used.
   
  7. Forms are classified as flat (single copy), snapout, fanfold, NCR, and preprinted. Fanfold forms are ideal for computer output. NCR is cleaner but costs more than carbon-interleaved forms.
 
  8. A well-designed form with clearly stated captions should be self-in­structing. If instructions are needed, they are placed on the cover of padded forms, in the stub area of snapout forms, or in some cases on the back of the form.
 
  9. Forms can be printed on paper of different colors, grades, and weights.Color distinguishes among copies. In deciding on the kind of paper to select, the forms designer must evaluate appearance, longevity, and handling. These factors are considered against cost.
 
 10. An organization's forms must be centrally controlled for efficient handling. Some planning is required prior to implementation. If forms are handled successfully, unauthorized forms should be minimized.

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