Software Requirements Engineering (ISB26404) - Lecture Notes PDF
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These lecture notes detail software requirements engineering, including what requirements are, their importance in software development, the consequences of poor requirements, and different types of requirements. It also discusses the relationship between stakeholders, developers, and requirements, and the impact of having proper requirements. The notes highlight the importance of requirements for project success.
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ISB26404 SOFTWARE REQUIREMENTS ENGINEERING Sugi What are Requirements? The Importance of Requirements in Software Content Development Consequences of Poor Requirements Types of Requirements Conclusion...
ISB26404 SOFTWARE REQUIREMENTS ENGINEERING Sugi What are Requirements? The Importance of Requirements in Software Content Development Consequences of Poor Requirements Types of Requirements Conclusion 2 Definition of Requirements Requirements are detailed descriptions of what a system must do. What are They serve as a guide for Requiremen both developers and ts? stakeholders. Types: Functional, Non- functional, System, and User requirements. 3 Align Stakeholders: Ensures all stakeholders have a common understanding of project goals. Guides Development: Provides a Why We clear blueprint for developers to follow. Need Risk Reduction: Helps identify Requiremen potential issues early in the ts process. Improves Communications: Facilitates communication between technical teams and business stakeholders. 4 Relationsh ip between stakeholde rs, developer s, and requireme nts 5 Misaligned Expectations: Results in a product that does not meet user needs. What Cost Overruns: Unclear Happens requirements can lead to rework Without and increased project costs. Proper Scope Creep: Without clear Requireme boundaries, the project may nts? expand uncontrollably. Project Delays: Misunderstandings can lead to time-consuming revisions. 6 Functional Requirements: Define what the system should do (e.g., features, operations). Non-Functional Types of Requirements: Define system Requireme performance (e.g., security, nts reliability). User Requirements: Descriptions from the user's perspective. 7 Requirements are essential for project success. Good requirements minimize risks, save time, and ensure Conclusion stakeholders satisfaction. Investing time in eliciting requirements is critical for any software project. 8
