Software Engineering Concepts

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What is software?

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A program or a set of programs that contains instructions to perform a specific task, including rules and related data documents.

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What are the two main types of software?

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1. System Software: Used to perform system-related tasks. 2. Application Software: Used by users to perform specific tasks.

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What is System Software?

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Software that manages hardware and software resources, such as Operating Systems (e.g., Windows, macOS) and Utility software (e.g., antivirus programs).

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What is Application Software?

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Software designed to perform specific tasks for users, including general purpose (e.g., word processors) and specific purpose software (e.g., reservation systems).

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What are the core characteristics of software?

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1. Intangible 2. Easy to Replicate 3. Non-Perishable 4. Developed, Not Manufactured

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What is Software Engineering?

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An approach to develop a software product using well-defined scientific principles, methods, and procedures.

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What are the characteristics of good software?

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1. Correctness 2. Usability 3. Reliability 4. Efficiency 5. Maintainability 6. Portability 7. Scalability 8. Security 9. Modularity

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What is the Software Development Life Cycle (SDLC)?

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A methodology with clearly defined processes for creating high-quality software, carried out in different stages.

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What are the stages of the SDLC?

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1. Planning/Feasibility Study 2. Analysis 3. Design 4. Development 5. Testing 6. Implementation 7. Maintenance

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What is the Waterfall Model?

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A linear sequential model where each phase must be completed fully before the next phase begins, suitable for small projects with well-understood requirements.