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Risk matrix

Likelihood × impact drives the response

Risk & Quality

Risk Management as a Working Practice

How to identify project risks, understand their different types, prioritise uncertainty, choose mitigation actions, and keep a live risk register—with practical worked examples.

16 min readPractitioner#risk#register#mitigation
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Project risk management is the ongoing practice of identifying uncertainty, understanding its effect on objectives, and acting before the team loses its options. A risk can threaten scope, schedule, cost, quality, safety or benefits; it can also create an opportunity. The goal is not a risk-free project. It is informed decisions, clear accountability and fewer avoidable surprises.

Risk, issue, assumption or dependency?

TermWhat it meansExample and PM action
RiskAn uncertain event or condition that could affect an objective.The vendor may miss the interface delivery date. Assess exposure and agree a response before the date slips.
IssueA problem that already exists and needs resolution.The interface delivery date has been missed. Assign recovery actions, assess impacts and escalate as needed.
AssumptionSomething treated as true for planning, but not yet confirmed.The plan assumes two analysts will be available. Validate availability; uncertainty about it may create a risk.
DependencyA relationship in which one activity or outcome relies on another.Testing depends on interface delivery. Record the dependency and identify the risk of it arriving late.

Not every issue began as a recorded risk. Once a risk materialises, link it to the issue log rather than continuing to describe an existing problem as merely possible. Keep any remaining uncertainty—for example, whether recovery will miss go-live—as a separate risk.

Start with a risk management approach

  • Agree which objectives matter most: a fixed launch date, a spending limit, patient safety, service availability, regulatory obligations or measurable business benefits.
  • Define likelihood and impact scales, assessment horizons and escalation thresholds with the sponsor. A generic matrix cannot decide what an unacceptable safety or compliance exposure is.
  • Assign responsibilities: the PM coordinates the process; risk owners manage individual risks; action owners deliver responses; sponsors and governance bodies decide matters beyond delegated authority.
  • Set a review rhythm and identify event-driven reviews, such as a design change, failed test, vendor delay or phase gate.
  • Agree where the register lives, who may access sensitive entries, and how response costs and contingency decisions will be approved.

How to identify risks before they become problems

Use several identification methods rather than relying on a single brainstorming meeting. Different people see different failure modes: a sponsor sees funding and benefits, a developer sees technical dependencies, and a frontline user sees workarounds that a process map may hide. Include people who do the work as well as those approving it.

MethodHow to use itUseful question
Work-package and dependency reviewWalk through the scope, milestones, critical path and hand-offs with delivery owners.What could prevent this deliverable from being accepted on time?
Assumption testingInspect estimates, staffing assumptions, approval lead times and benefit assumptions; ask for evidence.What happens if this assumption is wrong?
Interviews and workshopsBring together business, technical, operational, supplier and assurance perspectives. Offer a private channel for sensitive concerns.What are you worried about that is not in the plan?
PremortemImagine the project has failed, ask participants to write possible causes independently, then group and challenge them.It is six months later and we missed the outcome—what happened?
Historical evidenceReview comparable projects, incident records, defect patterns and supplier performance. Check whether the context still matches.Which previous problems could repeat here?
Process and technical walkthroughsFollow an end-to-end workflow, architecture, data journey or user scenario, including exceptions.Where could information, control or accountability break down?
External scanningTrack relevant regulatory changes, market conditions, funding decisions and supplier events.What outside our direct control could change the plan?
  1. 1Prepare: share the project objectives, scope, delivery approach, assumptions and main dependencies before the workshop.
  2. 2Collect: let participants record concerns independently before discussion so senior voices do not dominate.
  3. 3Clarify: turn each concern into a cause, an uncertain event and an effect on an objective; separate existing issues.
  4. 4Consolidate: merge duplicates, retain distinct causes, and mark what needs investigation instead of inventing confidence.
  5. 5Assign: nominate a risk owner, agree the next assessment or action, and set a review date. Identification without follow-up is only a list of worries.

Write risks properly

Write enough detail to support a decision. 'Lack of resources' is a category, not a useful risk statement. 'Because the specialist analyst is committed to another programme, requirements approval may slip beyond the planned date, reducing the time available for testing' identifies a cause, event and consequence. Any estimated delay or cost range should be supported by delivery evidence, not presented as a certainty.

Different types of project risks

A risk breakdown structure groups risks by source and helps the team check for blind spots. Categories are prompts, not mutually exclusive boxes: a vendor delay can affect both schedule and cost. Give the risk one primary category and record all relevant impacts rather than duplicating the same exposure across the register.

Risk typeTypical examplePossible response
Scope and requirementsAcceptance criteria are unclear, so late discoveries may create rework.Validate requirements with users and approvers; agree acceptance tests and change control.
Schedule and dependenciesAn external approval may arrive after the date assumed in the plan.Confirm lead times, bring approval work forward and assess alternative sequencing.
Cost and fundingUncertain effort or exchange rates may exceed the approved budget.Improve estimates, test cost scenarios and seek appropriate funding or commercial controls.
Technical and integrationAn interface may not support the required transaction volume.Run an early proof of concept and performance test against agreed criteria.
QualityIncomplete test coverage may allow serious defects into production.Prioritise tests by business impact and agree independent review where appropriate.
People and capacityA single specialist may become unavailable at a critical stage.Cross-train a backup, document knowledge and confirm realistic capacity commitments.
Supplier and procurementA supplier may fail to meet delivery or support obligations.Check capability, use measurable commitments, monitor evidence and assess alternatives.
Stakeholder and adoptionUsers may reject a workflow that increases their workload.Co-design with affected users, pilot changes and measure readiness and adoption.
Security, privacy and complianceA data migration may expose sensitive information or fail an applicable requirement.Involve qualified specialists early; minimise access and data, and test relevant controls.
Operational and safetyA cutover may interrupt an essential service.Rehearse cutover, validate fallback arrangements and agree safety-led go/no-go criteria.
External and environmentalA policy change, disruption or severe weather may affect delivery.Monitor developments, establish decision triggers and prepare workable alternatives.
Strategic and benefitsThe delivered solution may no longer solve the business problem.Revalidate the business case and benefit assumptions at key decisions.

Assess and prioritise: likelihood is not the whole story

Qualitative assessment compares likelihood and impact using agreed definitions. On a 1–5 scale, likelihood × impact produces a score from 1 to 25. The site's Risk Matrix Builder uses Low (1–4), Medium (5–9), High (10–14) and Critical (15–25). These are the tool's screening bands, not universal PMI thresholds. A rating of 4 is an ordinal judgement, not automatically a 40% probability, and multiplying ratings does not produce an expected financial loss.

  • Assess impact against the relevant objective: cost, delay, quality, safety, compliance or benefits. Apply your agreed method when several objectives are affected.
  • Consider proximity and urgency: a moderate exposure whose response deadline is tomorrow may need attention before a higher-scoring distant risk.
  • Record confidence and evidence. Missing information is a reason to investigate, not a reason to label a risk low.
  • Look for connected risks: several work packages may depend on the same specialist, vendor or assumption. Separate ratings can hide concentrated exposure.
  • Escalate unacceptable safety, security or compliance risks according to policy even when their matrix score is low.

For decisions that justify deeper analysis, use quantitative techniques such as sensitivity analysis, decision trees or schedule and cost simulation with credible inputs. Expected monetary value is probability × financial consequence. For example, a supported 30% probability of a £20,000 loss gives £6,000 expected monetary value—not a prediction of the actual loss or an automatic contingency budget. Simulation can account for interacting uncertainties, but only if dependencies and assumptions are modelled sensibly.

Choose the right response strategy

ThreatsOpportunities
Avoid — change the plan to eliminate the threatExploit — act to make the opportunity happen
Transfer — shift an agreed exposure to a capable third partyShare — allocate responsibility to a partner best placed to capture it
Mitigate — reduce probability or impactEnhance — increase probability or impact
Accept — reserve budget, monitorAccept — take it if it arrives

Avoidance could mean removing an unproven feature from the launch scope. Mitigation could mean testing that feature early. Transfer could involve insurance or a contract allocating a defined financial exposure, but a contract does not make delivery, safety or reputational consequences disappear. Acceptance is a deliberate decision within agreed authority: active acceptance prepares contingency, while passive acceptance monitors without a planned response. Escalate a risk when its response or ownership sits outside the project's authority; record the receiving owner rather than simply removing it from view.

How to turn mitigation into practical action

  1. 1Target the cause or consequence. Decide whether you need to reduce the chance of the event, reduce its impact, or both.
  2. 2Write a specific deliverable. Replace 'monitor the supplier' with 'obtain and review an end-to-end integration test by the agreed date'. Monitoring alone does not reduce exposure.
  3. 3Assign an action owner, due date and budget. The risk owner remains accountable for the overall exposure even when someone else performs the action.
  4. 4Check feasibility and trade-offs. A response may cost more than the benefit it protects or introduce new technical, security or schedule risks.
  5. 5Define proof of effectiveness: a successful test, confirmed backup capacity or an accepted operating procedure—not just a completed task.
  6. 6Reassess residual exposure after the action is implemented and tested. Do not reduce the rating merely because a response has been promised.

Mitigation, contingency, fallback and reserves

ConceptWhen it appliesExample
MitigationBefore the event, to reduce likelihood or impact.Rehearse a migration and correct reconciliation defects before cutover.
ContingencyWhen a defined trigger occurs.If reconciliation exceeds the agreed tolerance, pause migration and invoke the approved recovery plan.
FallbackWhen the primary response cannot work or is insufficient.If recovery fails, defer launch and restore the verified prior service where feasible.
Residual riskExposure remaining after a response.A rehearsed migration may still suffer an unexpected production failure.
Secondary riskNew exposure introduced by the response.A temporary manual workaround may create additional data-entry errors.

Contingency reserve supports identified uncertainty and is generally included within the relevant cost or schedule baseline. Management reserve addresses unforeseen work within project scope and sits outside the cost baseline. Approval and access to either reserve depend on the organisation's governance; they do not automatically belong to the PM or sponsor. Do not treat reserve as a hidden allowance for uncontrolled scope growth.

Worked example: a supplier integration risk

This is an illustrative project scenario, not a reported client case. A team replacing its finance system depends on a supplier interface before user acceptance testing (UAT). The supplier has not yet demonstrated the required end-to-end transaction, and testing is approaching.

DecisionExample register entry
Risk statementBecause the supplier interface is unproven, it may fail readiness checks before UAT, delaying testing and the planned launch.
Initial assessmentLikelihood 4 × impact 4 = 16, Critical in the site's matrix. The team records the assessment rationale and its uncertainty.
Risk ownerIntegration lead, accountable for coordinating technical readiness and reporting exposure.
MitigationRun an end-to-end test before UAT; assign supplier and internal action owners; confirm defect-resolution capacity.
TriggerRequired readiness criteria remain unmet at the agreed checkpoint. Escalate before the UAT start date, not after it.
ContingencyUse the approved alternative test sequence where valid; seek a launch decision if essential integration tests cannot complete.
Residual assessmentAfter test evidence is accepted, the team might reassess to likelihood 2 × impact 4 = 8, Medium. This is an illustrative judgement, not a guaranteed reduction.
Secondary riskAlternative sequencing could leave less time for end-to-end regression. Record and respond to that exposure separately.

The useful result is not a greener cell in a report. It is earlier evidence, a named decision-maker and a credible plan if readiness fails. If the supplier actually misses the checkpoint, open or update the issue and manage recovery while continuing to track the remaining launch uncertainty.

More examples: different risks need different responses

  • People risk: the only reporting specialist may leave before handover. Mitigate through paired work and tested documentation; arrange approved backup support if availability falls below the agreed level.
  • Adoption risk: a new booking workflow may slow frontline staff and encourage workarounds. Observe real tasks, co-design with users and pilot the change; use readiness evidence to decide whether rollout should proceed.
  • Security risk: a test environment may receive unnecessary personal data. Seek specialist review, minimise data and access, and verify controls before use. If exposure occurs, activate the applicable incident process rather than treating it only as a project issue.
  • Opportunity: a proven shared component may shorten development. Validate fit and licensing, assign an owner and run a small integration trial; do not commit the schedule saving until evidence supports it.

Keep a risk register that drives decisions

  • Record an ID, cause–event–effect statement, category, affected objective, date identified and current status.
  • Keep likelihood, impact, assessment rationale, proximity and residual exposure visible; distinguish current assessments from hoped-for improvements.
  • Assign a named risk owner and response action owners, with due dates, response costs and evidence of completion.
  • Define triggers, contingency or fallback arrangements, escalation authority, next review date and links to related issues or dependencies.
  • Store sensitive security, commercial or personal details with appropriate access controls; a public steering pack may need a summarised version.
  • Close risks only when the event can no longer occur, exposure has ended or responsibility has formally transferred. Keep the rationale and history.

Review, escalate and communicate throughout delivery

Review active risks with delivery owners at a frequency proportionate to the project. A stable project may use a weekly rhythm; a high-risk cutover may require daily checkpoints. At each review, ask what changed, whether triggers are approaching, which responses are overdue, and whether evidence supports the current rating. Revisit the register after scope changes, incidents, failed tests and major supplier or staffing changes—not just before a steering meeting.

Give governance a decision-focused summary: the exposure, what has changed, what the team is doing, and the decision needed by when. Track overdue response actions, risks without owners, approaching triggers and recurring issues. A falling count of open risks is not proof of improvement; it may mean the team stopped identifying them. At closure, transfer continuing operational risks to an accepting owner and capture lessons for the next project.

Common risk management mistakes

  • Writing categories such as 'budget' or 'supplier' instead of an uncertain event with a meaningful consequence.
  • Keeping existing issues in the risk register without an active resolution path.
  • Calling 'monitor' a mitigation when no action reduces likelihood or impact.
  • Lowering ratings before responses are implemented and verified, or treating matrix scores as precise forecasts.
  • Assuming a fixed-price contract transfers every delivery consequence, or that acceptance removes accountability.
  • Ignoring opportunities, connected risks and the new risks introduced by a workaround.
  • Reporting a list of colours without decisions, owners, deadlines or evidence.

Related PMI standards & templates

External resources on pmi.org — links open in a new tab. Some require PMI membership.

PMBOK-aligned templates for this topic

Editable Word and print-ready PDF downloads — no sign-up required.

  • Project charter template →A PMBOK-aligned project charter template with a section-by-section walkthrough, a filled-in example and the sign-off block sponsors actually ask for.
  • Project status report template →A PMBOK-aligned project status report template with a RAG summary, milestone and budget tables, a filled-in example and the decisions block sponsors actually read.
  • RAID log template →A PMBOK-aligned RAID log template with risks, assumptions, issues and dependencies in one register, a 1-25 scoring key and a filled-in example you can copy.
  • Lessons learned log template →A PMBOK-aligned lessons learned log template with a facilitation walkthrough, a worked example and the review cadence that stops lessons being written from memory at closure.
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