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tags: Systems Analysis and Design
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# final - 考試重點

## SDLC (System Development Life Cycle)
- Traditonal methdology used to develop, maintain, and replace information systems.
- Phase in SDLC:
- **Planning**
- An organization's total information system **needs are identified**, analyzed, prioritized, and arranged.
- **Analysis**
- System requirements are **studied and structured**.
- **Design**
- A description of the recommended solution is converted into **logical and then physical system specifications**.
- **Logical Design**
- All functional features of the system chosen for development in analysis are described independently of any computer platform.
- **Physical Design**
- The logical specifications of the system from logical design are transformed into the technology specific details from which all programming and system construction can be accomplished
- **Implementation**
- The information system is **coded, tested, installed and supported** in the organization.
- **Maintenance**
- An information system is systematically **repaired and improved**.

## Verification and Validation
- **Verification 驗證:** Do the thing right.

- **Validaion 確認:** Do the right thing.

後面我就不知道要考什麼了呢 ==