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Comprehensive Guide to the Software Development Life Cycle and Programming Concepts

This guide provides an in-depth understanding of the software development life cycle (SDLC), including analysis, design, implementation, testing, documentation, evaluation, and maintenance. We delve into essential programming concepts, such as pseudocode, structure diagrams, flowcharts, human-computer interaction (HCI), and program design principles. Key aspects of data types, control structures, operators, and error handling are thoroughly discussed to enhance readability, maintainability, and overall program quality. Documentation best practices for user and technical guides are also covered.

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Comprehensive Guide to the Software Development Life Cycle and Programming Concepts

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Presentation Transcript

  1. Programming

  2. A project cycle • Analysis • Design • Implementation • Testing • Documentation • Evaluation • Maintenance

  3. Analysis and design • Pseudo – code • Structure diagram • Flow chart • HCI • Screen layout • Prompts to user • Input validation

  4. Program design • Maintainability • Readability • Meaningful variable and procedure names • Internal commentary • Modularity • Blocks of code • Data flow between blocks • Parameter passing • Library (pre-defined functions)

  5. Data types • Numeric • Text (alphanumeric) • Array

  6. Statements Assignment of • constants • expressions • incremental expressions

  7. Operators • Arithmetic • + , - , x , / • Comparison • = , < , > , <> • Logical • AND, OR, NOT, EOR (XOR)

  8. Sequence The sequence is the order in which the instructions are carried out. Sometimes this is very important.

  9. Control structures - Repetition • Fixed loop (a known number of times) • FOR / NEXT • Nested loop (a loop inside a loop) • Conditional loop ( it depends!) • REPEAT / UNTIL

  10. Control structures - Selection • Conditional (makes a selection/decision) • IF, THEN, ELSE • CASE OF • Simple condition • Complex condition

  11. User Interface • screen layout • prompts to user • input validation

  12. Errors • System • Syntax • Run time • Logical

  13. Test data • Normal, typical • Invalid/exceptional • Extreme, on limits

  14. Evaluation • compare with agreed specification • evidence

  15. Documentation - User • Installation guide • User guide • Reference manual

  16. Documentation - Technical • Specification • Analysis and design • Program listing (including version ID) • Internal commentary • Test history • Evaluation

  17. ProgrammingEnd of presentation

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