Systems Life Cycle: Documentation | IGCSE Information and Communication Technology Preparation - Year 11 PDF Download

Technical Documentation

• Characteristics: Detailed insights into the system's inner workings and programming tailored for developers and IT personnel
• Uses & Purpose: Aimed at system maintenance, repair, and enhancement

Components

• Purpose of the System/Program: The purpose of the system or program involves explaining its intended function and goals. This section clarifies the primary objectives that the system aims to achieve.
• Limitations: Limitations highlight the known constraints or issues associated with the system. These constraints can include technical, operational, or resource-related limitations that may affect the system's performance.
• Program Listing: The program listing encompasses the code or scripts utilized in the system. This section typically provides a detailed overview of the program's implementation through code snippets or script excerpts.
• Program Language: The program language denotes the specific programming language employed in developing the system. Understanding the program language is crucial for comprehending how the system functions and processes data.
• Program Flowcharts/Algorithms: Program flowcharts or algorithms offer visual representations or textual descriptions of the system's logic and processes. These diagrams or descriptions help users grasp the sequential steps involved in system operations.
• System Flowcharts: System flowcharts depict the interactions between various components within the system. By illustrating the flow of data or operations, these flowcharts enhance understanding of how different parts of the system collaborate.
• Hardware & Software Requirements: This section outlines the necessary equipment and software essential for running the system effectively. Understanding these requirements is vital for setting up and maintaining the system.
• File Structures: File structures detail the organization and layout of the system's files and data. This information is crucial for managing data efficiently and accessing specific information within the system.
• List of Variables: The list of variables comprises a collection of variables utilized within the system, along with their names and purposes. Understanding these variables is essential for comprehending how data is processed and manipulated within the system.
• Input Format: The input format specifies the structure and format for entering data into the system. It delineates how users should input data to ensure compatibility and accuracy during the data entry process.
• Output Format: The output format outlines the structure and format for presenting data generated by the system. This section guides users on how to interpret and utilize the system's output effectively.
• Sample Runs/Test Runs: Sample runs or test runs provide examples of system operations, including input data and the expected output. These examples help users visualize how the system processes information and generates results.
• Validation Routines: Validation routines involve techniques used to check and confirm the accuracy of data entered into the system. These routines help maintain data integrity and ensure that the system functions correctly.

User Documentation

• Characteristics: Instructions and guidance for users to operate the system
• Uses & Purpose: Aimed at assisting users in effectively utilizing the system and resolving issues

Components

• Purpose of the system: Explanation of the system's intended function and goals.
• Limitations: Known constraints or issues with the system.
• Hardware & software requirements: Necessary equipment and software to run the system.
• Loading/running/installing software: Instructions for setting up the system on user devices.
• Saving files: Procedures for storing data within the system.
• Printing data: Steps to produce hard copies of system data.
• Adding records: Instructions for creating new entries in the system.
• Deleting/editing records: Guidelines for modifying or removing existing entries in the system.
• Input format: Structure and format for entering data into the system.
• Output format: Structure and format for presenting data generated by the system.
• Sample runs: Examples of system operation, including input and expected output.
• Error messages: Explanations of system warnings and error notifications.
• Error handling: Steps to resolve issues and errors within the system.
• Troubleshooting guide/helpline: Assistance for diagnosing and addressing common problems.
• Frequently asked questions: Answers to common user inquiries.
• Glossary of terms: Definitions of key terms and concepts related to the system.