Podcast
Questions and Answers
What is the main goal of requirements engineering?
What is the main goal of requirements engineering?
- Defining operational constraints for the system
- Writing detailed descriptions of the system's functions
- Identifying the services that the customer requires from a system (correct)
- Creating a structured document for the development process
Which type of requirement is typically written for customers?
Which type of requirement is typically written for customers?
- System requirements
- Nonfunctional requirements
- User requirements (correct)
- Functional requirements
What do functional requirements describe?
What do functional requirements describe?
- Services the system should provide and how it should react to particular inputs (correct)
- Detailed descriptions of the system's functions
- Statements in natural language plus diagrams of system services
- Operational constraints for the system
What do nonfunctional requirements focus on?
What do nonfunctional requirements focus on?
What is the purpose of system requirements?
What is the purpose of system requirements?
Which type of requirement may be part of a contract between client and provider?
Which type of requirement may be part of a contract between client and provider?
What do non-functional requirements define?
What do non-functional requirements define?
Why might problems arise when requirements are not precisely stated?
Why might problems arise when requirements are not precisely stated?
Which classification of non-functional requirement specifies that the delivered product must behave in a particular way?
Which classification of non-functional requirement specifies that the delivered product must behave in a particular way?
What are verifiable non-functional requirements statements using?
What are verifiable non-functional requirements statements using?
How are usability requirements helpful to developers?
How are usability requirements helpful to developers?
What are examples of organizational requirements?
What are examples of organizational requirements?
What could happen if non-functional requirements are not met?
What could happen if non-functional requirements are not met?
How do non-functional requirements differ from functional user requirements?
How do non-functional requirements differ from functional user requirements?
What might happen if usability requirements are not met?
What might happen if usability requirements are not met?
What do goal non-functional requirement statements represent?
What do goal non-functional requirement statements represent?
Study Notes
- Requirements Engineering is a process in software engineering for identifying the services a customer requires from a system and the constraints under which it operates.
- Requirements are descriptions of the system services and constraints generated during the requirements engineering process.
- Types of Requirements: User Requirements (natural language statements of system services and operational constraints, written for customers), System Requirements (structured documents describing detailed system functions, defining what should be implemented).
- Functional Requirements: Statements of system services, how it should react to inputs, may state what it should not do.
- Non-functional Requirements: Constraints on system services or functions, such as timing constraints, development process constraints, and standards.
- Functional Requirements depend on the type of software, expected users, and the system. Functional user requirements may be high-level statements of what the system should do, functional system requirements should describe the services in detail.
- Problems arise when requirements are not precisely stated, leading to ambiguity and potential misinterpretation by developers and users.
- Non-functional Requirements define system properties and constraints, such as reliability, response time, and storage requirements, and often apply to the system as a whole rather than individual features or services.
- Non-functional requirements may be more critical than functional requirements as they can render the system unusable if not met.
- Non-functional requirements can be classified as Product, Organizational, or External requirements.
- Non-functional goals and requirements: Goals are general intentions of the user, verifiable non-functional requirements are statements that can be objectively tested.
- Usability Requirements: System should be easy to use by medical staff, minimize user errors.
- Metrics for Non-functional Requirements: Property and Measure.
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Description
Test your knowledge of requirements engineering with this quiz focused on Chapter 4 of the software engineering course. Explore topics such as identifying customer services, system constraints, and more.
