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    Software Types, Applications and Characteristics

    SOFTWARE TYPES


    GENERIC – These are stand-alone systems that are produced by a development organization and sold on the open market to any customer. For example, PCsoftware such as Word, Excel or library information system or accounting system.

    Customer (Bespoke)- develop for a single customer according to their specification. For example, a system written to support a particular business process etc,

    Cooperative Solution - starting with generic system and customizing to the need of a particular customer e.g. Resource Planning System.


    SOFTWARE APPLICATIONS


    • System Software
    • Real-time Software
    • Business information software
    • Engineering & Scientific Software
    • Embedded Software
    • Personal application Software
    • Communication Software
    • Etc.etc.


    ATTRIBUTES OF A GOOD SOFTWARE

    • It is not enough just to produce software. Software should deliver the required functionality.
    • Software should have the appropriate product characteristics. Characteristics varies from product to product.


    CHARACTERISTICS OF A GOOD SOFTWARE


    Maintainability Software must evolve to meet changing needs.

    TrustworthySoftware must be trustworthy, e.g. reliability, security, safety. Software does not wear out. E.g. if a bulb in your room is get fuse, you go to bazar and buy a new bulb. But a software does not wear out.

    EfficiencySoftware should not make wasteful use of system resources.

    UsabilitySoftware must accepted by the users for what it was designed. Software must has appropriate user interface & adequate documentation.

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