The maintenance phase of software engineering

Software engineering cycle analysis phase, design phase, maintenance phase.

Let's talk about the final maintenance phase: This is the longest, most expensive phase of the period.

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Langfang Normal University phase nine accelerated

In the software engineering cycle, the analysis stage is "think", think about the appropriate development, the design stage is "thinking", thinking about the design of how to complete, the maintenance phase is "repair", the revision and modification procedures. Three stages missing that part is not working.