Podcast
Questions and Answers
What is programming described as in the text when there are no requirements or design?
What is programming described as in the text when there are no requirements or design?
What forms the basis for project planning, risk management, and change control?
What forms the basis for project planning, risk management, and change control?
What is the subset of systems engineering concerned with discovering, developing, managing, and tracing requirements called?
What is the subset of systems engineering concerned with discovering, developing, managing, and tracing requirements called?
What is the process of establishing the services that the customer requires from a system and the constraints under which it operates and is developed known as?
What is the process of establishing the services that the customer requires from a system and the constraints under which it operates and is developed known as?
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In an ideal scenario, what two characteristics should requirements possess according to the text?
In an ideal scenario, what two characteristics should requirements possess according to the text?
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Which aspect should be avoided in requirements according to the text?
Which aspect should be avoided in requirements according to the text?
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What is a requirement according to IEEE-STD-1220-1998?
What is a requirement according to IEEE-STD-1220-1998?
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Why do requirements need to be both open to interpretation and defined in detail?
Why do requirements need to be both open to interpretation and defined in detail?
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What function do requirements serve when they are used as the basis for a contract?
What function do requirements serve when they are used as the basis for a contract?
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Why are requirements described as the foundation of development work?
Why are requirements described as the foundation of development work?
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What is the primary reason for requirements needing to be unambiguous and testable?
What is the primary reason for requirements needing to be unambiguous and testable?
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How can requirements simultaneously be the basis for bidding and contracting?
How can requirements simultaneously be the basis for bidding and contracting?
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What is the primary reason for project failure?
What is the primary reason for project failure?
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What does the text suggest about the creation of a complete and consistent requirements document?
What does the text suggest about the creation of a complete and consistent requirements document?
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What is the main purpose of the lecture described in the text?
What is the main purpose of the lecture described in the text?
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What is the most common reason for project failure?
What is the most common reason for project failure?
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Which of the following resources is mentioned in the text as a source for the lecture?
Which of the following resources is mentioned in the text as a source for the lecture?
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What is the key message conveyed in the text about requirements?
What is the key message conveyed in the text about requirements?
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Study Notes
What are Requirements?
- A requirement is a necessary attribute in a system that identifies a capability, characteristic, or quality factor of a system for it to have value and utility to a customer or user.
- A statement that identifies a product or process operational, functional, or design characteristic or constraint, which is unambiguous, testable or measurable, and necessary for product or process acceptability.
Importance of Requirements
- Requirements provide the basis for all the development work that follows.
- The most common reasons for project failure are not technical.
Characteristics of Good Requirements
- Complete: including descriptions of all facilities required.
- Consistent: no conflicts or contradictions in the descriptions of the system facilities.
Criteria of a Good Requirement
- Unambiguous
- Testable or measurable
- Necessary for product or process acceptability
Defining Requirements Engineering
- The subset of systems engineering concerned with discovering, developing, tracing, analyzing, qualifying, communicating, and managing requirements that define the system at successive levels of abstraction.
- The process of establishing the services that the customer requires from a system and the constraints under which it operates and is developed.
Roles of Requirements
- Form the basis for: project planning, risk management, trade-off, acceptance testing, and change control.
- Initiate the other technical work: system design, development, testing, implementation, and operation.
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Description
Explore the fundamentals of software requirements and requirements engineering including what requirements are, why they are important, defining criteria, completeness, consistency, project success/failure factors, and selected topics in the field.
