AdvancedTopic 76 of 102Manufacturing, Robotics & Systems
Requirements and traceability
Each requirement traces to design and test.
In depth
Requirements state what the system must do (functional) and how well (quality: performance, safety, reliability) in a verifiable, unambiguous way ('shall' statements). Traceability links stakeholder needs → system requirements → design → tests so changes and coverage can be assessed. Tools: DOORS, Jama.
Key points
- Unique IDs
- Verification method
- Change impact analysis
ExampleRequirement: the pump shall deliver at least 5 L/min at 3 bar; linked to test T-114.
What is Requirements and traceability?
Each requirement traces to design and test.
Why is it important to understand requirements and traceability?
Traceability links each requirement to the design element and test that check it, so nothing is forgotten and changes are controlled.
What is a traceability matrix?
A table that links requirements to design items, tests and results, which shows coverage and gaps.
Why does traceability matter for changes?
When a requirement changes, the matrix shows which designs and tests must be updated, which avoids missed changes.
How is Requirements and traceability used in practice?
Typical applications include showing that a braking requirement is covered by a design feature and a test, assessing the impact of changing one requirement on the rest of a project and demonstrating compliance to an auditor for a safety-critical product.
What should I learn before Requirements and traceability?
Study "V-model and lifecycle" first (topic 75 of 102 in Manufacturing, Robotics & Systems). It covers the groundwork this topic builds on.
What are the key points of Requirements and traceability?
Unique IDs. Verification method. Change impact analysis.
Can you give an example of Requirements and traceability?
Requirement: the pump shall deliver at least 5 L/min at 3 bar; linked to test T-114.
What comes after Requirements and traceability?
The next topic is "Trade studies", which builds directly on this one.
How difficult is Requirements and traceability?
It is classed as Advanced in Manufacturing, Robotics & Systems (topic 76 of 102). It is an advanced topic. It assumes you are comfortable with the intermediate topics in Manufacturing, Robotics & Systems.