Library / Problem Structuring and Decision Support Principles Framework
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PSD.14:4 - Solution

Start with the follow-up question. For needed future observations, compare feasible arrangements and establish the necessary observation and interpretation work. For a current change, recover its effect on the affected claim and return the smallest warranted update through §§4.5–4.7. Preparation may begin before recommendation delivery; an already supported update does not require a new observation arrangement.

PSD.14:4.1 - Recover the recommendation, decision and implementation separately

Name the receiving question, subject, horizon, recipient, choice owner, relevant alternatives, protected conditions and the recommendation’s current disposition. An adequate PSD.13 result supplies what was advised and why. If it is unavailable, stale or outside the present use, recover a qualified direct account or state the exact gap.

Then ask what is actually known about the later decision. Obtain evidence of the authority-holding System’s authorized decision from that System or a qualified direct source, under the direct authority and A.2.9 conditions. Distinguish a choice to commission a study, a choice of an intervention, rejection of the advice, and no established decision. A recommendation or its receipt proves none of them.

Recover implementation and consequence evidence only to the extent the current question needs it. A WorkPlan establishes intended work, not performance. An implementation report must support what was actually done, under which configuration and interval; an observation must identify what was observed and its limits. Whether the advice or action caused an effect requires the direct causal evidence and guidance, not chronology alone.

A useful current return can therefore be: “The recommendation remains conditional; the receiving decision is not yet established; no implementation consequence is claimed.” Unknown decision status must not be silently converted into continuation of a selected action.

PSD.14:4.2 - Name the premises and observations that can change the answer

For each material condition, connect the premise to the recommendation claim, compared alternative, model, protection condition or problem boundary that uses it. State what difference would change the current decision-support result and who can supply or interpret the needed evidence.

The observation may concern an expected consequence, an assumption, a new opportunity, a source’s qualification, a participant’s material objection, a protection breach or a changed authority condition. It need not be a numeric metric. A new affected group can reopen scope even while existing performance indicators remain favourable.

Use a small relation account such as the following; it is ordinary working content, not a prescribed register.

Follow-up positionWhat must be recoverable
Current premise and receiving useThe exact claim, configuration, horizon and recommendation or decision-support result that relies on it.
Observation or source returnWhat evidence could test or change it, from which observation, supplier, participant or authoritative source.
InterpretationWho can qualify the evidence, under what Method and uncertainty, and who judges its decision significance.
Signpost and reconsideration conditionThe observable indication, the condition that makes reconsideration necessary, and the source of any threshold or protected limit.
Timing and accessWhen evidence is needed, delay in obtaining and interpreting it, access and disclosure conditions, and the effect of a missed observation.
Next result and ownerWhich source, model, comparison, formulation or recommendation would change, and who retains the later choice or operational authority.

A signpost is something watched because it can reveal a material change. A reconsideration condition states when that information requires a named question to be reopened. Neither is automatically a decision to change action. An operational rule may separately authorize a response to a defined signal; its authority and conditions must be established through that rule.

Choose timing from the consequence of late knowledge, not a universal calendar. If observation plus interpretation and authorized response would arrive after the relevant decision window, move the observation earlier, choose a feasible proxy with its limits, change the arrangement, or return that the promised follow-up is not adequate. Do not invent a threshold to make the table complete.

PSD.14:4.3 - Generate and compare follow-up arrangements

Consider genuinely different ways to obtain a useful return. Possibilities include a recipient-owned scheduled review using existing evidence, a targeted specialist test before a commitment, event-driven notification with qualified interpretation, or a coupled arrangement combining targeted tests with a limited route for unexpected changes. A justified one-off return with no continuing service may be enough for a short, low-consequence use.

Compare coverage of the material questions, detection and interpretation delay, uncertainty, participation, observer independence where required, effort, confidentiality, cost, and the feasible receiving response. Do not maximize the number or frequency of indicators. A technically precise observation is of little use if no authorized or competent receiver can act on its meaning in time.

Targeted monitoring tests a named question; broader observation can reveal unexpected change. Their balance is a design choice for this decision. The distinction is supported by the current environmental decision-support discussion in Manley, Povak, Reynolds and Hessburg (2026), Discussion / “Change is inevitable, learning is critical”; it supplies neither a universal monitoring mix nor an effect guarantee for other domains.

Use a PSD.16 conflict/facilitation-architecture result only if it constrains this design choice. For example, a material participant correction must reach the analyst before the comparison is used, or an observer cannot also carry an incompatible facilitation burden. The constraint does not choose the follow-up arrangement. Generate and compare alternatives that respect it; return to PSD.16 only when the underlying interference itself needs a different decision.

Use A.22 when the selected organization of independently identified constituents and obtaining relations is itself the subject of a structure claim. A proposed arrangement remains a design description until the required participants, access, assignments and relations are established. A diagram or a filled table does not establish the arrangement, its adequacy or its work.

PSD.14:4.4 - Establish a viable observation and return arrangement

Name who will observe, who will interpret, who receives the qualified result and who owns any resulting decision. Establish the assignments, capability, access, resources, timing and protection needed for those particular contributions. Several functions may be carried by one performer where suitable; distinguish them when competence, independence, workload or authority makes that difference material.

State what happens if the observer cannot obtain the evidence, the source becomes unavailable, the interpreting owner changes, or the evidence arrives too late. A failed observation is not a favourable observation. Return the gap and its effect on current reliance to the named receiver; use any existing authorized escalation or protection rule when it applies.

Where an actual professional service exists, fit contact, confidentiality, referral and closure to that service’s conditions. The NCDA 2024 Code, A.10 and B.1, for example, constrains continuity and information sharing in career services; it creates no AI-holder duty or universal follow-up contract.

Before relying on the arrangement, test the decisive connection at proportionate cost: can an example material observation be obtained, qualified, delivered and understood as the named reopen question in time? A prospective walkthrough can expose an assignment or interpretation gap; it proves neither later enactment nor empirical effectiveness. Use stronger domain validation when the consequence requires it.

Record whether the result is a proposed arrangement with conditions, an established arrangement ready for its bounded use, or a blocker. Do not promise observation that has no capable performer or permitted source. State the closing or review condition for the arrangement so that a bounded recommendation does not create indefinite unowned monitoring.

PSD.14:4.5 - Interpret actual observations before revising advice

When evidence arrives, first establish its subject, configuration, interval, provenance, Method, uncertainty and allowed use. A current source label alone is insufficient. Use A.10 for the actual reliance. An adequate existing interpretation may support the answer; a missing one may limit or block it. Select a further specialist result through A.15.9 and C.11.DUA only when its attainable contribution warrants the whole burden within the receiving window.

Compare the qualified evidence with the exact condition it was meant to test. Distinguish a change in the world, a changed source claim, an expired reliance window, a changed value judgement, a revised model and a merely changed representation. A diary review date is not by itself an expired reliance window. When meaning, applicability and access remain compatible, a repaired reference may finish the source update without renewed advice, multi-use search or another result record. A real expired reliance window or missing necessary observation still limits present use.

A source changing from A to B does not establish that advice about A is now valid for B. Preserve the earlier result for its earlier subject and conditions. Return the current use as unqualified when its basis is missing; obtain further qualification only when the needed stronger answer warrants that contribution. Similarly, failure to observe a threshold crossing proves nothing unless the observation coverage and sensitivity support that inference.

Keep the observations and their interpretation distinct from the next decision. If an authorized owner supplies a changed action decision, recover it separately. If the adviser concludes that a different action should be considered, that is renewed advice, not implementation control.

PSD.14:4.6 - Return only the affected decision-support consequence

Trace the changed premise into the particular claim or disposition that relies on it. Preserve inspected independent results for their current conditions. If dependence or coverage remains unresolved, state that gap; do not label an uninspected branch unaffected.

Current returnWhen it is warrantedWhat happens next
Unchanged within stated conditionsQualified evidence does not alter the relied-on premise, or the changed claim is outside the inspected use.Retain that bounded advice and its current conditions. State the next observation only when an actual follow-up use needs it. This is not authority to continue an intervention.
NarrowedA useful portion still has an adequate basis, but the previous scope, configuration, window or strength is no longer supported.Return the surviving claim and the withdrawn scope explicitly. Do not relabel the narrowed result as the original whole.
Blocked for the affected useA necessary premise, authority condition, observation or interpretation is unavailable or no longer adequate.State what cannot responsibly be advised or relied on now, the missing basis and the receiver who can resolve or reroute it. Preserve separate usable content.
Reopen a named contributorA needed stronger answer warrants an obtainable source, candidate, value, uncertainty, model, consequence, robustness or scope result, considering the complete acquisition burden.Request that bounded result through its direct owner. The present qualified limit can close the earlier answer; a pending request is not the refreshed result.
Compose a later recommendationChanged qualified premises require a different disposition or a newly composed answer to the receiving question.Use PSD.13 with the current premises and remaining gaps. Preserve the earlier recommendation occurrence and the separate later choice.

These are scoped conclusions, not a universal status system or a five-step lifecycle. One event can leave an internal-development claim unchanged, narrow a mixed-arrangement claim to configuration A, block advice about B, and reopen its evaluation supplier. Only the affected combined recommendation needs recomposition.

Keep continue, adjust, refresh and reframe precise. Continuing reliance on unchanged advice is a decision-support return. Adjusting a selected action requires the competent owner and its authorized decision, even if the original formulation remains adequate. Refreshing a model or evidence invokes its supplier and does not itself change action. Reframing reopens the problem or boundary through PSD.3 or PSD.4 when the old question no longer covers the material situation.

For one known reliance question, use A.10 and the direct subject guidance. If a changed source requires discovering and revalidating several actual receiving uses, use A.10.1 for its bounded search, coverage, direct-reliance test and subject-result return. That discovery preserves actual dependence and material gaps; equivalent irrelevant mentions can be grouped. The direct decision-support answer can finish without an additional common account unless a receiver needs that overview. Any no-impact claim still requires adequate coverage and support. Citation or adjacency is not dependence. Use G.11 for currentness, decay and scoped refresh planning/reporting when that is the live result; neither pattern supplies a new domain conclusion or recipient choice.

PSD.14:4.7 - Close the present return and preserve the next useful question

Return the observation, qualification, affected use and material limits needed by the current question. Name a next responsible receiver when further action is actually needed; a sufficient direct return creates no additional completion record. Preserve enough of the prior recommendation, decision and evidence to distinguish a later reassessment from a claim that the earlier Work was different.

Close when this bounded follow-up question has a supported answer or an explicit blocker and its receiving use is clear. Continue an obtaining observation or service arrangement only under its own scope and end condition. A completed recommendation application does not become an indefinitely unfinished application merely because later follow-up exists.

When follow-up evidence can change the decision-support Method repertoire, supply the bounded case, conditions, failure or useful variation to PSD.15. Its owner still compares the repertoire and obtains its own result. One successful delivery, revised diagram or favourable outcome proves neither general Method effectiveness nor cultural continuation.