GPM-b Cheat Sheet

High-yield GPM-b review for key rules, traps, decision cues, formulas, and final-week reminders.

Use this as your last-mile GPM-b™ review. Pair it with the Syllabus for the study blocks and Practice for speed.

For official source context, use Resources.

Sustainable project decision loop

When the choices look close, stronger GPM-b answers usually follow this order:

  1. identify which impacts are actually material
  2. make the objective measurable
  3. assign an owner and evidence source
  4. govern the trade-off rather than hiding it in optimism

P5 lens (fast scan)

Lens Ask first Evidence or artifact to expect
People who gains, who carries harm, and who must adapt? workforce, community, health, safety, or inclusion indicators
Planet what lifecycle burden changes? energy, emissions, waste, resource, or biodiversity evidence
Prosperity what value or cost effect is real over time? financial case, resilience, and longer-term operating view
Product what is being delivered and what footprint comes with it? design choices, material choices, and use-phase effects
Process how is the work performed and governed? procurement rules, controls, reporting cadence, and audits

Materiality and stakeholder test

If the question is really about… Better move Weak move
whether an impact matters enough to act on test significance to both stakeholders and organizational decisions treat every impact as equally important
conflicting stakeholder views surface the trade-off and make criteria explicit pick the loudest voice without a rationale
narrow local optimization widen the lens to lifecycle and downstream consequences shift harm to suppliers, operations, or disposal
“good intentions” without metrics demand a baseline, target, owner, and reporting method accept a sustainability claim on wording alone

Sustainability objective checklist

An objective is credible only when it has:

  • a baseline
  • a target
  • a time horizon
  • a measurement method
  • an owner
  • a tolerance or escalation trigger

Decision Checklist

  • What sustainability impact or commitment is being tested?
  • Is the issue material to stakeholders, delivery, reporting, or long-term value?
  • What evidence or baseline is missing?
  • Which artifact should own it: impact analysis, sustainability management plan, governance log, procurement record, closeout report, or lessons learned?
  • Is the best action proportionate to the project’s authority and life-cycle stage?

Delivery-by-phase rules

Phase What stronger answers do What weaker answers do
Initiate embed sustainability in the business case and charter keep it as a side note or PR statement
Plan turn impacts into scope, procurement, quality, risk, and KPI rules leave sustainability outside the working plans
Execute collect evidence and correct deviations early wait until reporting time to discover drift
Monitor and control run change control with an impact lens approve changes without testing sustainability consequences
Close verify acceptance evidence and operational sustainment declare success because the project delivered outputs

Sustainable procurement and supplier evidence

Procurement question Better evidence Weak pattern
does the supplier actually meet the claimed standard? auditable criteria, reporting, certifications where relevant, and contract language marketing claims with no measurable proof
are harms shifted outside the project boundary? lifecycle and supply-chain view only checking on-site effects
is performance sustainable after handoff? operating KPIs, maintenance, usage, and disposal plan assuming acceptance ends the obligation

Anti-greenwashing prompts

Prompt Why it matters
What metric proves this claim? separates aspiration from evidence
Who owns the measurement and cadence? makes the claim governable
What lifecycle stage is being ignored? catches upstream or downstream harm shifting
What would make an auditor disagree? stress-tests the claim before external scrutiny

Fast definitions

Term Quick meaning
Sustainability meeting present needs without undermining future capacity
Triple bottom line people, planet, and prosperity considered together
ESG environmental, social, and governance reporting/risk lens
Materiality importance strong enough to change decisions
P5 people, planet, prosperity, product, and process impact structure

How to use this cheat sheet

  1. Pick the weak study block from the Syllabus.
  2. Rehearse the matching table here before you drill.
  3. Do a short set in Practice.
  4. Add every repeated miss as a one-line sustainability rule under the closest section.

Spend most of your final review on Sustainable Methods because it is the larger domain. Then test whether you can apply those methods in delivery scenarios, especially initiation and planning choices, execution evidence, monitoring controls, transition responsibilities, and closeout claims.

Revised on Monday, April 27, 2026