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Requirements Engineering Concepts
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Requirements Engineering Concepts
Requirements Engineering Concepts
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1
Question
What is Requirements Determination?
Answer
Careful study of organization current procedures and the information systems used to perform organizational tasks.
2
Question
What is Requirements Structuring?
Answer
Relationships between requirements and eliminating redundancy
3
Question
Who is a System stakeholder?
Answer
Any person or organization who is affected by the system in some way and so who has a valid interest
4
Question
What are the Stakeholder types?
Answer
End users, System managers, System owners, External stakeholders
5
Question
Who are the Stakeholders in the Clinical system?
Answer
Patients, Doctors, Nurses, Medical receptionists, IT staff
6
Question
What is a Requirement?
Answer
A usable representation of a need
7
Question
What are the types of Requirement Classification Schema?
Answer
Business requirements, Stakeholder requirements, Solution requirements, Transition requirements
8
Question
What are business requirements?
Answer
Statements of goals, objectives, and outcomes that describe why a change has been initiated.
9
Question
What are stakeholder requirements?
Answer
Describe the needs and wants of stakeholders that must be met in order to achieve the business requirements
10
Question
What are solution requirements?
Answer
Describe the capabilitiesfunctions and qualities of a solution that meets the stakeholder requirements.
11
Question
What are non-functional requirements?
Answer
Describe conditionsperformance constraints under which a solution must remain effective or qualities that a solution must have.
12
Question
What are transition requirements?
Answer
Describe the capabilities that the solution must have and the conditions the solution must meet to facilitate transition from the current state to the future state
13
Question
What are transition requirements?
Answer
Requirements of a temporary nature that address topics such as data conversion and training, needed to integrate the proposed solution into the existing environment.
14
Question
What are business requirements?
Answer
High-level goals and objectives that define why a project is needed, used to prioritize and resource projects.
15
Question
What are stakeholder requirements?
Answer
Needs and wants of stakeholders, bridging business and solution requirements, focusing on what is needed rather than how to achieve it.
16
Question
What are solution requirements?
Answer
Specific characteristics of the solution, including functional (what the system should do) and non-functional (how well it should do it) aspects.
17
Question
Give an example of a stakeholder requirement.
Answer
As a user, the app must run on all versions of the iPhone.
18
Question
Give an example of a functional solution requirement.
Answer
The app must have a drop down menu in black text on a light blue background that allows the user to select the product he wants to purchase
19
Question
Give an example of a non-functional solution requirement.
Answer
The app must offer 100% reliability with high traffic.
20
Question
Give an example of transition requirements.
Answer
Sales personnel must attend a 2-day new customer acquisition program prior to using the new sales support system
21
Question
What are user requirements?
Answer
Statements in natural language plus diagrams of the services the system provides and its operational constraints. Written for customers. Have to be understandable by end-users, customers and managers who do not have a technical background.
22
Question
What are system requirements?
Answer
A structured document setting out detailed descriptions of the systems functions, services and operational constraints. System requirements are detailed and may include more technical information.
23
Question
What are functional requirements?
Answer
Statements of services the system should provide and how the system should react to particular inputs. May state what the system should not do.
24
Question
What are non-functional requirements?
Answer
Statements that specify how well the system should perform.
25
Question
What are requirements constraints?
Answer
Constraints on the services or functions offered by the system, such as timing constraints, development process constraints, and standards.
26
Question
Give an example of a functional requirement for the Mentcare system.
Answer
A user shall be able to search the appointments lists for all clinics.
27
Question
What problems arise when functional requirements are not precisely stated?
Answer
Ambiguous requirements may be interpreted in different ways by developers and users.
28
Question
What are the key characteristics of requirements in principle?
Answer
Requirements should be both complete and consistent.
29
Question
Why is it difficult to produce a complete and consistent requirements document in practice?
Answer
Because of system and environmental complexity.
30
Question
What are non-functional requirements?
Answer
These define system properties and constraints, e.g., reliability, response time, and storage requirements.