PPIE / Model Limitations
Transparent limitations strengthen—not weaken—decision quality.
Where data, assumptions, models and human judgement can fail, and the controls PlusPoint uses to keep uncertainty visible throughout the decision.
Data limitations
Timeliness, gaps, survivorship, comparability and source restrictions.
Model limitations
Simplification, parameter uncertainty, non-linearity and false precision.
Behavioural limits
Overconfidence, anchoring, confirmation bias and incentive conflicts.
Control response
Independent challenge, scenarios, sensitivities, decision logs and monitoring.
User responsibility
Decisions informed by PPIE remain context-specific. They require professional and legal judgement alongside PlusPoint's analysis, and clients should seek their own independent advice before acting.
What we maintain
- A limitations register kept current with each mandate
- A model-review checklist applied before sign-off
- A documented scenario policy
- Data-quality disclosure with every deliverable
- A defined correction process if an error is found
Role boundary
PPIE cannot eliminate uncertainty, guarantee returns, or replace specialist legal, tax or regulatory advice. It is decision support, applied by experienced judgement — not a substitute for it.