Requirements gathering for Dynamics 365 implementations

How to gather requirements effectively for a Dynamics 365 implementation — workshop techniques, business process analysis, prioritisation, and the discipline that produces useful FDDs.

Updated 2026-10-31

Requirements gathering is the foundation of every Dynamics 365 implementation. Done well, it produces clear functional designs and confident scoping; done badly, it leads to discovery surprises, rework, and budget overruns. The methodology matters less than the discipline applied.

The output goals.

  • Clear understanding of as-is processes.
  • Defined to-be processes.
  • Specific functional requirements.
  • Non-functional requirements (performance, security, etc.).
  • Prioritisation (must-have, should-have, nice-to-have).
  • Documented assumptions and risks.
  • Stakeholder consensus.

The output feeds FDDs, TDDs, and project planning.

Workshop-based approach. Most common:

  • Facilitated workshops per business area.
  • Stakeholders engaged in person or virtually.
  • Documented in real-time.
  • Iterative validation.

The workshop format produces alignment alongside requirements.

Workshop preparation.

  • Pre-read materials sent.
  • Specific agenda.
  • Right participants invited.
  • Workshop length appropriate (half-day to multi-day).
  • Logistics organised.

Unprepared workshops waste senior time; preparation matters.

Discovery techniques.

  • Process mapping — walk through current state step by step.
  • Pain point analysis — what's broken in current process?
  • Aspirational visioning — what would the future look like?
  • Quick-win identification — what's easy and high-impact?
  • Edge case discussion — what unusual scenarios occur?

Combine techniques to draw out comprehensive requirements.

As-is vs to-be.

  • As-is — current state documentation.
  • To-be — desired future state.

The gap analysis between them is the implementation scope.

Why document as-is. Tempting to skip:

  • Saves time.
  • Future-focused.

But:

  • Reveals dependencies on legacy.
  • Surfaces process knowledge held by individuals.
  • Provides context for to-be design.

Always document as-is, even briefly.

To-be process design.

  • Reflect best practices.
  • Match Dynamics 365 standard processes where appropriate.
  • Customise only where business genuinely demands.
  • Validate with stakeholders.

The "fit-gap" analysis identifies where standard fits and where it doesn't.

Functional vs non-functional requirements.

  • Functional — what the system does (e.g., "create sales order").
  • Non-functional — quality attributes (performance, security, scalability, usability).

Both essential; non-functional often overlooked until late.

Common non-functional requirements.

  • Performance — response time targets.
  • Availability — uptime requirements.
  • Scalability — user count, data volume.
  • Security — encryption, access control, audit.
  • Compliance — regulatory requirements.
  • Accessibility — WCAG, Section 508.
  • Localisation — multi-language, multi-currency.

These shape architecture and implementation.

Prioritisation methods.

  • MoSCoW — Must, Should, Could, Won't.
  • High / Medium / Low.
  • Value vs effort matrix.
  • Cost / benefit analysis.

Force ranking — be explicit about trade-offs.

Stakeholder management.

  • Executive sponsors — strategic direction.
  • Business owners — process accountability.
  • Subject matter experts — operational detail.
  • Power users — daily use perspective.
  • IT team — technical integration.

Engage appropriate level for each requirement type.

Documentation formats.

  • Process narrative — text describing flow.
  • Flow diagrams — visual.
  • User stories — "As a [role], I want [action], so that [benefit]."
  • Use cases — formal scenarios.
  • Requirements catalogue — structured list.

Different audiences prefer different formats; multiple representations may help.

Tools.

  • Microsoft Word / Excel — common.
  • Microsoft Loop / OneNote — collaborative.
  • Confluence — for development-led teams.
  • DevOps Boards — user stories tied to development.
  • Specialised requirements tools — IBM DOORS, others.

Tool choice less important than discipline.

Validation cycles.

  • Draft requirements.
  • Review with stakeholders.
  • Revise based on feedback.
  • Validate with final readers.
  • Sign-off at design completion.

Iteration is healthy; first-draft signed off rarely matches reality.

Common pitfalls.

  • Wishlist syndrome. Every nice-to-have included; scope explodes.
  • Anchoring on current. "Same as today but in Dynamics" — misses opportunity.
  • Missing edge cases. Happy path documented; exceptions emerge in test.
  • No prioritisation. Everything's a "must"; budget impossible.
  • Stakeholder absence. Key person missed; requirements gap.
  • Verbal-only agreement. Documented vaguely; interpretation differs.

Discovery anti-patterns.

  • Boil-the-ocean discovery. Months of analysis paralysis.
  • Insufficient discovery. Rush to build; discoveries come later as change orders.
  • Wrong abstraction level. Either too detailed too early or too vague throughout.

Time-boxing. Discovery shouldn't be indefinite:

  • Plan phase duration.
  • Acknowledge some unknowns won't resolve until later.
  • Document what's known and assumed.
  • Move forward; refine during build.

Iterative discovery. For agile implementations:

  • High-level requirements upfront.
  • Detailed per-sprint discovery.
  • Backlog grooming.

Suitable for some projects, not all; depends on scope clarity.

Standard vs custom. Important judgement:

  • Adopt standard wherever possible — easier maintenance.
  • Customise only where business value clearly justifies.

The "we always do it this way" reflex often hides opportunities to adopt better-fitting standards.

Strategic positioning. Requirements gathering is investment in clarity. Spent well, it produces confident designs; spent poorly, it produces brittle specifications that don't survive contact with build. Mature implementations balance enough discovery to design confidently with enough humility to refine during build.

For project leaders:

  • Plan discovery time deliberately.
  • Engage right stakeholders.
  • Document candidly, not aspirationally.
  • Prioritise ruthlessly.
  • Iterate; don't expect first pass to be final.

The discipline is constant attention to clarity and stakeholder engagement; the payback is build phases that proceed smoothly without constant re-questioning of requirements.

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