Q. What do the results from Schach et al. (2003) indicate about the relative distribution of maintenance activities compared to (Lientz and Swanson, 1980)?

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Q. What is the main reason for the differences in results between studies such as (Lientz and Swanson, 1980) and Schach et al. (2003)?

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Q. What is the result of some organizations not following the IEEE definition of software maintenance?

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Q. What is the first stage of the maintenance life cycle?

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Q. During which stage of the maintenance life cycle is emphasis placed on correcting faults?

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Q. What type of maintenance tasks are common during the decline stage?

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Q. What is necessary for successful maintenance?

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Q. When does the knowledge of the application usually become scant?

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Q. What is the main activity of code-related tasks in maintenance?

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Q. How much effort does isolation take in a single maintenance task?

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Q. Which type of maintenance task takes the most effort in isolation?

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Q. Which type of maintenance task takes the most effort in modification?

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Q. What are some of the major causes of maintenance problems?

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Q. What is the definition of software evolution according to Lehman and Belady?

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Q. What is the Law of Continuing Change in software evolution?

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Q. What is the Law of Increasing Complexity in software evolution?

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Q. What is the ultimate result of entropy in software systems?

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Q. What is the purpose of refactoring in agile methods?

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Q. What is the main problem with software maintenance?

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Q. What makes it difficult for maintenance programmers to understand the system from its source code?

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