Computer-science_A-level_Cie
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computers-and-components6 主题
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logic-gates-and-logic-circuits2 主题
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central-processing-unit-cpu-architecture6 主题
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assembly-language-4 主题
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bit-manipulation1 主题
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operating-systems3 主题
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language-translators2 主题
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data-security3 主题
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data-integrity1 主题
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ethics-and-ownership3 主题
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database-concepts3 主题
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database-management-systems-dbms-1 主题
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data-definition-language-ddl-and-data-manipulation-language-dml1 主题
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computational-thinking-skills1 主题
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algorithms14 主题
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data-types-and-records2 主题
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arrays2 主题
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files1 主题
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introduction-to-abstract-data-types-adt1 主题
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programming-basics1 主题
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constructs2 主题
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structured-programming1 主题
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program-development-life-cycle2 主题
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program-design-2 主题
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program-testing-and-maintenance3 主题
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user-defined-data-types1 主题
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file-organisation-and-access-3 主题
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floating-point-numbers-representation-and-manipulation3 主题
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protocols2 主题
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circuit-switching-packet-switching1 主题
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processors-parallel-processing-and-virtual-machines5 主题
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boolean-algebra-and-logic-circuits4 主题
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purposes-of-an-operating-system-os3 主题
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translation-software3 主题
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encryption-encryption-protocols-and-digital-certificates3 主题
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artificial-intelligence-ai4 主题
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recursion1 主题
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programming-paradigms4 主题
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object-oriented-programming7 主题
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file-processing-and-exception-handling2 主题
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data-representation5 主题
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multimedia3 主题
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compression2 主题
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networks-and-the-internet11 主题
maintenance
Types of maintenance
What is program maintenance?
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Program maintenance is the process of updating or improving a program after it has been delivered to the user
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Unlike physical equipment, programs don’t wear out, but they may need to be changed due to errors, changing requirements, or new technology
Why maintenance is needed
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To fix errors that were missed during testing
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To improve performance based on user feedback
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To adapt the software to new uses or platforms
Types of program maintenance
|
Type |
Purpose |
Example |
|---|---|---|
|
Corrective |
Fixes bugs or errors found during real-world use |
Fixing a bug that causes the program to crash when special characters are entered |
|
Perfective |
Improves performance or adds small enhancements |
Replacing a loading screen with a progress bar to give better user feedback |
|
Adaptive |
Modifies the program to support new environments or requirements |
Modifying the program to work on a tablet instead of just a desktop computer |
Responses