Requirements Engineering (URS) | GxP IT projects

Our services for requirements engineering

We facilitate workshops with the business, IT and QA, structure the requirements along process steps and write the URS so it stays assessable and estimable. We explain abbreviations and keep audiences separate: the user view for the business, implementable wording for development. The full lifecycle is on the GxP network map.

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Entwicklungs-Wegweiser

Welche Software-Ausgangslage haben Sie?

Wählen Sie die Ausgangslage für GxP-Softwareentwicklung oder Migration.

Individualsoftware mit SDLC

Anforderungen, Entwicklung und CSV in einem Team – von URS bis Validierungsbericht.

Projekt besprechen

The URS is the anchor document of a GxP IT project: the functional specification, risk analysis, test cases and validation evidence all derive from it. If a requirement is missing or ambiguous, the rework surfaces during OQ, where it costs the most.

What You Receive

A URS with numbered requirements that can each be tested individually

Classification into must, should and could, so quotations become comparable

GxP-relevant requirements flagged as input to the risk analysis

An initial traceability matrix, ready to link to specification and test cases

A review record with sign-off by the business department and quality assurance

Which deliverables do you need first?

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Our approach in GxP projects: from planning through release – each step delivers evidence you can present in QA review and audit. View GxP consulting in five steps

Why the URS decides project success

This page is written for project managers, quality assurance, business departments and IT in pharma, biotech, medical devices and chemicals who are procuring or commissioning a LIMS, MES, ERP module, laboratory application or bespoke software. We use methods from agile projects, such as user stories, where they improve clarity without loosening traceability.

The finished specification is the basis for GxP software development, computer system validation and supplier qualification, because it supplies the criteria for assessing vendors.

Qualities of robust user requirements

Complete

Complete, including exceptions and special cases.

Unambiguous

Unambiguous, without room for interpretation.

Clear and concise

Clear and concise, understandable for non-specialists.

Consistent

Consistent style, no contradictions, no redundancy.

Necessary

Necessary and feasible.

Traceable

Traceable: every user requirement has its own ID.

Verifiable / testable

Verifiable and testable, linked directly to test cases.

Implementation-free

Only the what, not the how. Development decides the solution.

Regulatory framework: EU GMP, ICH and FDA references

No regulation prescribes a URS template. Documented requirements and traceability are nevertheless the precondition for demonstrating a validation at all.

EU GMP Annex 11, Computerised Systems: requires a description of the system and evidence that validation matches the requirements.
21 CFR Part 11: audit trail, signature and access control requirements belong in the URS, not in the test phase.
ISPE GAMP 5, 2nd Edition: specification and verification as a linked pair, the basis of ID-based traceability.

FAQ: Requirements engineering

What is a User Requirements Specification?

The URS describes what the system must do without prescribing the solution. It is the anchor document for design, test and validation.

Why does every requirement need its own ID?

Only then does traceability hold from the URS through design and test cases to the evidence. GAMP 5 expects this coupling, and when something changes it shows immediately which tests have to be repeated.

Can user stories be part of the URS?

Yes, if they meet the quality attributes above. We use them as a wording aid, not as a substitute for IDs, testability and completeness.