STR.9:4 - Solution

Compare complete options against the same question, then test the conditions that could change their acceptability or preference. Include the finite contribution to the current configuration and the actual conditions of future exercise.

STR.9:4.1 - Fix the comparison being claimed

Name the strategic subject, current configuration, alternatives, horizon, criterion and protected conditions. Use STR.6’s complete-enough options and STR.8’s supported or missing conditions. Compare the same question for every alternative.

Distinguish an option excluded by a current condition from one with a low expected benefit or an unresolved premise. Required permission is an eligibility question; uncertain demand is a consequence question. A missing estimate is not zero effect.

Use a qualified PSD.12 robustness account when it already covers the relevant configuration and variation. Strategy adds the effect on direction, commitment timing, capability and future exercise. A result for another horizon or a smaller configuration does not automatically answer this comparison.

When another participant’s response can change the result, use STR.4’s qualified response account for each candidate move. A common comparison basis can contain the same conditional response rule applied to different own moves, producing different responses. Do not hold the other participant’s action fixed merely to make the columns look alike. Compare the induced outcomes, timing, full burden and protected limits; retain conditional results where the response premise is unresolved.

In STR.4:5.3, this changes integration’s relevant outcome from promised maintenance to the provider’s induced restriction. An effective prior interface transfer is a different arrangement to compare, not evidence that the original promise already prevents restriction. Ordinary comparisons under exogenous conditions remain sufficient when other participants’ responses cannot alter the choice.

STR.9:4.2 - Choose the criterion that answers the actual decision

State what the chooser is trying to protect or improve. Expected-value comparison can be useful with defensible probabilities and a suitable value model. Under deep uncertainty, conditional performance, worst-case loss, regret or an acceptable region may serve better.

These criteria answer different questions. Worst-case comparison emphasizes the largest loss in the declared conditions. Regret compares an option’s result with the best available alternative in each condition, under a common justified measure. A small regret does not make a breach of a protected obligation acceptable.

Keep material value disagreement explicit. A scalar can help only when its trade-offs are warranted for this use. Do not invent equal scenario probabilities, silently normalize unlike consequences or change the criterion after seeing the winner.

For a dominance claim, specify the compared characteristics, their preferred directions, conditions and evidence. Being no worse on every relevant coordinate and better on at least one can support dominance under that rule. A weighted-score win or a higher average does not establish dominance. Where a required consequence estimate is missing, leave the coordinate comparison unresolved. Non-dominated candidates still require a selection judgement.

STR.9:4.3 - Compare the whole finite change with the current configuration

Ask what would actually be added, removed or substituted. Include transition, support, recovery, common bottlenecks and displaced work. An indivisible training package or service commitment cannot be valued by multiplying an isolated local gain without checking its joint effect.

Use FPF C.11.CRC, Configuration-Relative Contribution Comparison, when this finite comparison is missing. It makes the current configuration, changed configuration, result and resource coordinates, interactions and option effects explicit. Reuse a sufficient existing account instead of making a second one.

When money is material, identify the offer or obligation behind each claimed change: who would pay or receive what, when, and under which demand and acceptance conditions over the chosen horizon. Use an adequate OPS.14 operating account for a bounded operating choice, or the qualified financial result needed for another use. Reconcile shared receipts, avoidable payments and displaced contributions once for each whole configuration. Disjoint feature lists or unchanged salaries do not establish those differences. Keep a missing estimate unresolved and reuse a sufficient account instead of commissioning another.

Before using a rate or priority score to compare whole financial results, recover its underlying quantity, denominator, interval and completion conditions through OPS.15. Determine any material delay loss from the actual changed receipts, payments or foregone contribution under the compared timing; postponing one receipt does not charge its entire value anew for every delayed period.

Compare an attainable addition with what is already there, not with an empty or ideal organization. Include the cost of obtaining the comparison separately from the cost of realizing its preferred option. Information that opens a later choice is not yet operating revenue or delivered benefit.

STR.9:4.4 - Find holding regions and meaningful reversals

Challenge a decisive assumption at the lowest effort that can expose its failure. Vary demand, cost, availability, model assumptions or a justified value judgement where those changes can alter the result. Test joint changes when shared causes, thresholds or interactions matter; changing one input at a time can miss them.

Separate the uncertain input, such as future demand, from the response created by a particular service or resource arrangement. If a central-input estimate could hide a material nonlinear response, use PSD.12 section 4.3.1’s paired test or reuse a sufficient qualified analysis. Carry back the response values, tested domain, threshold result and limits on extrapolation. Equal test weights supply no event probabilities, and the same demand can affect two arrangements differently.

State where the option remains acceptable, where a rival becomes preferable and where the comparison is unsupported. Include a condition that defeats all present options when one is material. The least bad candidate is not necessarily admissible.

A new beneficiary, criterion or horizon may define a different comparison rather than a numerical perturbation of the old one. Preserve the earlier basis and make the change explicit. When the option set itself misses a serious response, return to STR.5 or STR.6 instead of treating the current ranking as sufficient.

STR.9:4.5 - Price the ability to decide later

For a staged or retained option, name who could exercise it, the observation needed, its expiry and the time required to respond. Determine what must remain available and what carrying it displaces.

Compare the retained flexibility with a serious immediate-commitment or continuation alternative. Include monitoring, coordination, switching and temporary exposure where they matter. An informative signal arriving after a contract becomes irreversible cannot preserve that decision.

When a failure condition suggests narrower exposure, specify what would actually limit the obligation or loss: changed admission terms, available support or a smaller complete service scope. Compare that arrangement through section 4.3. Keep an unqualified protection as a missing premise. A four-day preparation budget limits that preparation, not the service obligations of a later agreement.

Financial option valuation belongs to its qualified method and inputs. This pattern can compare reversibility and future choices without fabricating a monetary option price. A retained archive entry preserves reasoning; maintaining a working fallback can require an additional real contribution.

STR.9:4.6 - Return the comparison at its supported scope

State the preferred option or retained set under the chosen basis, the reason it beats the serious rival, the reversal conditions and the unresolved limits. A qualified recommendation, an infeasibility result or a worthwhile next inquiry can be complete.

Use STR.7 only when an attainable experiment could improve the choice enough to warrant its burden. STR.10 examines commitment consequences that remain unresolved, and STR.11 supports the separately authorized choice. Keep comparison, selection and actual resource commitments distinct.

Reopen when a changed option, condition, source result, criterion, timing or carrying cost can alter this comparison. Do not rebuild it because an unrelated source or file changed.