Year 11 Exam > Year 11 Notes > IGCSE Information and Communication Technology Preparation > Systems Life Cycle: Design
Systems Life Cycle: Design | IGCSE Information and Communication Technology Preparation - Year 11 PDF Download
File/Data Structures
- Field length: Determines the maximum number of characters allowed in a field within a data structure.
- Field name: Identifies each field within the data structure.
- Data type: Specifies the type of data that can be stored in a field, such as text, numbers, or dates.
- Coding of data: Involves using codes to represent specific data values, like 'M' for male and 'F' for female.
Input Formats
- Data capture forms: Designed to collect structured data from users, emphasizing user-friendliness, clear instructions, and appropriate data fields.
Output Formats
- Screen layouts: Present information to users on a screen, focusing on readability, visual appeal, and efficient use of space.
- Report layouts: Organize information in printed or digital reports, emphasizing readability and effective presentation.
Validation Routines
- Range check: Ensures data falls within a specified range of values.
- Character check: Verifies that data contains only allowed characters.
- Length check: Ensures data matches a specified length.
- Type check: Validates that data is of the correct data type.
- Format check: Ensures data conforms to a specific format.
- Presence check: Validates that data is present and not left blank.
- Check digit: Adds a digit to a number to verify its accuracy.
Question for Systems Life Cycle: DesignTry yourself: Which validation routine ensures that data falls within a specified range of values?View Solution
The document Systems Life Cycle: Design | IGCSE Information and Communication Technology Preparation - Year 11 is a part of the Year 11 Course IGCSE Information and Communication Technology Preparation.
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FAQs on Systems Life Cycle: Design - IGCSE Information and Communication Technology Preparation - Year 11
| 1. What are the different stages in the Systems Life Cycle? |  |
Ans. The different stages in the Systems Life Cycle are planning, analysis, design, implementation, and maintenance.
| 2. Why is design considered a crucial stage in the Systems Life Cycle? | |
Ans. Design is considered crucial in the Systems Life Cycle because it involves creating a blueprint for the system that will guide the development process and ensure that the final product meets the requirements and objectives.
| 3. What are the key factors to consider during the design stage of the Systems Life Cycle? | |
Ans. Key factors to consider during the design stage include functionality, usability, scalability, security, and compatibility with existing systems.
| 4. How does the design stage of the Systems Life Cycle impact the overall success of a system? | |
Ans. The design stage impacts the overall success of a system as it sets the foundation for development, ensuring that the system meets the user's needs, is efficient, and can be easily maintained and upgraded in the future.
| 5. What are some common challenges faced during the design stage of the Systems Life Cycle? | |
Ans. Some common challenges faced during the design stage include balancing conflicting requirements, managing scope creep, ensuring stakeholder alignment, and incorporating feedback effectively to refine the design.
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Nov 22, 2024 Last updated |
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