In perfective maintenance,changes are made to a system to add new features or to improve performance.
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Q23: How can one distinguish between development and
Q24: Maintainability is the ease with which _
Q25: Adaptive maintenance is usually less urgent than
Q26: According to Nash,the standard cost of maintenance
Q27: List the four types of maintenance.
Q29: Which maintenance involves changes made to a
Q30: In situations where a company has not
Q31: Once a maintenance request is received,design must
Q32: When corrective maintenance problems surface,they are typically
Q33: What are the four major activities that
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