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Brief answer only. 8. The major activities in software maintenance can be classified into four categories: corrective, perfective, adaptive, and preventive a. Describe the purpose

image text in transcribedBrief answer only.

8. The major activities in software maintenance can be classified into four categories: corrective, perfective, adaptive, and preventive a. Describe the purpose of each activity. (16) b. Among these activities, which one normally happens most often? (4)

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