5 SRE Requirements Types PDF

ISB26404 SOFTWARE REQUIREMENTS ENGINEERING Sugi  Requirements types Content Documenting Requirements 2  Functional Requireme Quality nts types Constraints 3  Definition:...

ISB26404 SOFTWARE REQUIREMENTS ENGINEERING Sugi  Requirements types Content Documenting Requirements 2  Functional Requireme Quality nts types Constraints 3  Definition: Describe what the system should do— specific actions, features, and behaviors. Functional Examples: The system shall allow users to reset passwords via email. The system shall generate weekly performance reports for managers. 4  Definition: Describes system attributes that define how well the system performs a function. Often relates to performance, security, usability, and reliability. Quality Examples: The system shall respond to user requests within 2 seconds. The system shall handle up to 10,000 concurrent users without performance degradation. 5  Definition: Limitations or restrictions imposed on the system design, often external. Examples: Constraint Budget Constraint: The overall project budget shall not exceed RM500,000. Technological Constraint: The application shall run on Android and iOS only. 6  Types of Requirement Documenti Documentation: ng  Natural Language Requireme  Modelling Techniques nts 7   Definition: Describing requirements in plain text, Documenti often in the form of "shall" statements. ng  Characteristics: Requireme Simple, easy to understand, even for nts: non-technical audiences. Natural  Common Format: Language The system shall [do something]. The user shall be able to [do something]. 8   Definition: Using visual or graphical representations Documenti to describe requirements, which provides ng a structured approach. Requireme  Characteristics: nts: Easier to visualize complex systems. Modelling  Common Modelling Techniques: Technique Use Case Diagrams Entity-Relationship Diagrams (ERD) Data Flow Diagrams (DFD) 9  Functional Requirements: Use Cases, User Stories, Requirement Specifications. Documenti ng Quality Requirements: Quality Attribute Requireme Scenarios, Service-Level Agreements. nts: Examples Constraint Requirements: Project Charter, Legal Agreements, Compliance Documentation. 10 Conclusion 11