Preventive Maintenance - Maintaining the System

Q.  Changes are made to the system to reduce the future system failure chances is called _________ .
- Published on 24 Jul 15

a. Preventive Maintenance
b. Adaptive Maintenance
c. Corrective Maintenance
d. Perfective Maintenance

ANSWER: Preventive Maintenance

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    Discussion

  • Nirja Shah   -Posted on 21 Oct 15
    - Software maintenance in software engineering is the modification of a software product after delivery to correct faults, to improve performance or other attributes.

    - In the late 1970s, a famous and widely cited survey study by Lientz and Swanson, exposed the very high fraction of life-cycle costs that were being expended on maintenance.

    - They categorized maintenance activities into four classes:

    Adaptive
    – It modifies the system to cope with changes in the software environment (DBMS, OS)

    Perfective
    – It helps in implementing new or changed user requirements which concern functional enhancements to the software

    Corrective
    – It helps in diagnosing and fixing errors, possibly ones found by users

    Preventive
    – It helps in increasing software maintainability or reliability to prevent problems in the future

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