#Revalidate Affected Uses When a Relied-on Source Changes

A.10.1 · Stable · Part A - Kernel Architecture Cluster

#About this pattern

This is a generated FPF pattern page projected from the published FPF source. It is canonical FPF content for this ID; it is not a FPF Reference product feature page.

#How to use this pattern

Read the ID, status, type, and normativity first. Use the content for exact wording, the relations for adjacent concepts, and citations to keep active work grounded without pasting the whole specification.

Pattern type. Method pattern.

Status. Stable.

Normativity. Normative unless a passage is marked informative.

One-sentence summary. When a relied-on source claim changes and its receivers are not yet fully known, bound where uses count, search that frame from both source and receiver sides, confirm actual dependence, apply the relevant direct subject-pattern guidance only across the action-changing reach, obtain the independently governed subject result, and keep the coverage gaps visible.

Use this pattern when a claim-bearing source has been revised, replaced, refined, superseded, or challenged and the practical question is not merely whether the source is current, but which existing results or actions actually relied on the changed claim.

#Relations

#Content

#Problem Frame

Use this pattern when a claim-bearing source has been revised, replaced, refined, superseded, or challenged and the practical question is not merely whether the source is current, but which existing results or actions actually relied on the changed claim.

The primary EntityOfConcern is the bounded source-to-use structure: the changed claim and the exact direct use relations through which receiving results, decisions, specifications, plans, or actions depended on it. The practitioner is not asked to know every receiver in advance. The first move is to state the source comparison and the present decision that bounds where a receiving use would count.

First useful move. Write:

Source episteme S0 is being compared with later or replacement episteme S1 for question Q. The potentially material claim change is ΔC. Uses will be sought only within search frame F; the first known coverage limits are G.

If no action-relevant claim change is established, stop before opening a multi-use search. A new URL, file, layout, revision label, carrier, or publication occurrence is not by itself a material claim change.

What goes wrong if missed. One team replays every analysis because a version changed. Another preserves every result because the represented world did not change. A third follows citations or graph edges and calls every reachable item affected while missing an undeclared receiver that actually used the premise. All three replace actual reliance with a proxy.

What this buys. The practitioner gets an affected-use revalidation account that is local, replayable, and honest about coverage. They preserve inspected unaffected uses for their stated conditions, prepare only depends branches for application of their direct subject-pattern guidance, record unresolved reliance and inaccessible search surfaces, and stop at the last receiving action that can change.

Not this pattern when.

• Use A.10 when one already-known bounded reliance use is the whole question.
• Use C.2.1, E.17, or E.24.PUB when source identity, edition continuity, publication, carrier, form, audience, or availability is the live question and no several-use revalidation is needed.
• Use G.11 when currentness, decay, refresh planning, or refresh reporting is the live result.
• Use E.15 when the changed object is one FPF pattern edition; it retains Delta-Class, predecessor-function continuity, pattern checks, and its own change result.
• Use the direct subject pattern when the source is unchanged and a sensor, market, organization, law-applicability situation, configuration, or other world-side condition changed.
• Do not use A.10.1 to decide truth, evidence sufficiency, causality, choice, assurance, authority, permission, release, planning, or performed Work. Take those questions directly to their governing patterns.

What changes in practice. A source change no longer means “redo everything” or “update the link.” The team first establishes whether claim content changed or names the missing fact, states where receivers could count and how that area was searched, confirms reliance in the receiving content, and revalidates only the smallest action-changing branch.

#Problem

Source-change impact is difficult precisely when the receiving uses are partly unknown. A source register may know the source but not every later premise. A receiving decision may use an equivalent claim without retaining the same citation. A dependency graph may include declared edges that do no current work and omit an informal premise that does.

The cheapest apparent boundaries are therefore unreliable:

1. a file or edition label says too little about changed meaning;
2. a citation, mention, link, carrier, adjacency, or graph path says too little about actual reliance;
3. a repository search says too little about surfaces it could not inspect;
4. transitive reach says too much when no downstream action can change; and
5. a local revalidation summary says too little about the subject result that justified it.

Without a bounded search frame, “no affected use found” can silently mean “we searched one convenient repository.” Without application of direct subject guidance and an independently obtained subject result, “preserved” or “reopened” becomes an ungoverned universal status. The method must make both errors visible without turning every source change into a corpus-wide programme.

#Forces

#Solution

Start from the changed source, establish a claim-sized difference, bound the receiving-use search, cover that frame from complementary directions, and inspect each candidate before following it. For each actual depends branch, apply the direct pattern that governs the receiving result and obtain that result independently. Complete the common account only after that subject result exists.

#Perform the Nine-Step Move

1. Start from the changed source, not a presumed receiver. Name the predecessor and later or replacement source epistemes, the claim set whose change may matter, and the present question that bounds the search. Leave source identity, edition continuity, access, or applicability unresolved when the required fact is missing.
2. Compare claims rather than files. Separate changes in proposition, subject, scope, applicability, assumptions, limits, evidence status, and effective conditions from wording, layout, publication, carrier, and revision-label changes. If no material claim change is established, take the cheap stop.
3. Select a receiving-use search frame. Name the project, product, portfolio, organization, decision or result families, configurations, intervals, repositories, registers, responsible owners, and explicit exclusions within which a use would count for the present question.
4. State reproducible discovery coverage. Name the exact source identifiers, claim addresses and aliases used; the included search surfaces; the source-outward and receiver-oriented routes; and every unsearched, inaccessible, stale, unindexed, or identity-ambiguous surface.
5. Discover and then name candidate receivers. Use search, citations, lineage, traces, indexes, owner knowledge, or tools to find candidates. Inspect the receiving content and recover the exact premise, evidence-use, operation-argument, specification, decision-basis, or other direct relation. Discovery alone establishes no reliance.
6. Classify and bound reach. Give every found candidate depends, mentions only, or unresolved. Follow a depends branch through another exact use relation only while a receiving action can change. Form one dispatchable discovery-and-reach statement for each branch that needs subject judgment.
7. Apply the direct subject pattern's guidance. Use the discovery-and-reach statement to apply that guidance to the changed claim, exact direct use, current conditions, affected reach, coverage limits, and material subject facts. The practitioner or admitted System carrying out that application may find that the proposed dependence must be narrowed or rejected or that stronger evidence is required. Keep the resulting subject result independently governed and pass it directly to its existing consumers.
8. Complete the common account after the subject result exists. Cite that result, then summarize this affected use locally as preserved, narrowed, reopened, superseded, reliance withdrawn, or blocked. The summary neither replaces the subject result nor changes A.10 RelianceDisposition.
9. Stop at reproducible local closure. Finish when the frame is fixed, every included surface has a stated coverage basis or named gap, every found candidate has a discovery disposition, and every depends branch has a subject result or named blocker. Preserve inspected unaffected uses, history, gaps, the next responsible receiver, and the observation that would reopen the account.

This numbered presentation is an A.22.CGUS learning unfolding, not a lifecycle and not a mandatory sequence of U.Work. Discovery, source recovery, subject inquiry, and communication may overlap. Only the information dependencies in the move impose order.

#Compare the Source at Claim Size

Recover each source as a C.2.1 episteme: a claim-bearing informational object, not its file or display. Name the predecessor and later or replacement episteme, their relevant claim addresses, subjects, interpretation bases, effective conditions, and edition relation when that relation is established.

Treat a difference as material here only when it can alter a receiving action or result. Useful comparison dimensions are:

Wording can change without meaning changing; one word can also reverse an obligation. A text diff is a locator, not the semantic verdict.

If the same source episteme is merely republished on a new carrier, update the governed identity, publication, representation, availability, or one-use reliance facts through C.2.1, E.17, E.24.PUB, and A.10 as applicable. Do not open the several-use search unless availability itself changes the bounded reliance question.

#Bound the Search Frame and Make Coverage Reproducible

Set the frame before treating found candidates as the universe. The frame is ordinary claim content in the account under construction, not a new record kind.

Coverage is adequate only relative to that frame. Use complementary routes:

• Source-outward discovery starts from exact source identifiers, claim addresses, aliases, citations, backlinks, provenance, data or model lineage, declared traces, and transformations.
• Receiver-oriented discovery inspects the included receiving families for the same or an equivalent premise, limit, parameter, assumption, evidence use, or decision basis, even when the source identifier is absent.

One justified complete index may cover both directions. Otherwise state both routes and their limits. For every surface, record the query or inspection basis, the source identifiers and aliases used, the date or source value inspected when it matters, and the result or gap. An unsearched, inaccessible, stale, unindexed, or identity-ambiguous surface is a discovery-coverage gap. Outside the covered surface, a use is not found, not established unaffected.

#Confirm Direct Reliance Before Following Reach

Search output supplies candidates. The receiving content supplies the reliance test.

These discovery dispositions answer whether a found candidate belongs in the affected branch. They are not A.10 RelianceDisposition values. A.10 still decides whether one bounded evidence use passes, degrades, abstains, reopens, needs evidence or assurance, or is blocked for current use.

A citation, a present or missing trace, storage, indexing, carrier co-location, succession, ownership, declared dependency, graph reachability, or a shared keyword establishes neither depends nor performed Work. A missing trace may be a discovery or coverage gap; it is not impact and it does not prove no impact. Conversely, an undeclared use can depend when the receiving content actually uses an equivalent premise.

Follow a depends branch only through another exact direct use relation. Stop before a downstream item whose action, condition, result, or required check cannot change. The affected reach is the smallest dependency-closed structure that contains every in-frame action-changing receiver; it is not every transitively reachable node.

For each branch that requires application of direct subject-pattern guidance, write a discovery-and-reach statement containing:

The statement is dispatchable claim content, not a new mandatory carrier or universal record. A table, list, matrix, or optional G.6 path slice may present it; the representation establishes none of its relations.

#Apply Direct Subject Guidance and Keep the Result Independent

The common move ends before subject judgment. A practitioner or admitted System applies the direct subject pattern's concrete rule or test to each depends branch. Re-establish only the current conditions, evidence, authority, cost, and Work that can change the independently governed result.

A practitioner or admitted System may, by applying the direct subject rule or test, narrow or reject the proposed affected reach. Keep the independently obtained result on its existing direct route: the engineering source-change result governed by SYSE.19 goes to SYSE.14; revision feedback governed by FIN.17 goes to FIN.4; and the assumption-impact result governed by STR.2 goes to STR.3 and STR.4.

The completed A.10.1 account is never an input to the subject result it later cites. The composition is acyclic:

changed source → bounded search frame and coverage → discovery-and-reach statement → application of direct subject guidance → independently governed subject result → completed affected-use revalidation account

#Complete the Affected-Use Revalidation Account

Complete the common account only after every resolved depends branch has a subject result. The account may be an ordinary C.2.1 episteme when it must be durable or relied on; no dedicated affected-use record kind is required.

Preserved, narrowed, reopened, superseded, reliance withdrawn, and blocked are local prose summaries, not a universal status vocabulary. They do not replace a subject result, RelianceDisposition, assurance, permission, authority, release, or decision.

Keep earlier source editions and prior results recoverable for their original uses and conditions. A later source does not rewrite what an earlier source meant. Reuse a prior result only when its conclusion and conditions remain current and the changed claim lies outside its actual dependency.

#Stop, Return Gaps, and Reopen Locally

A clean local stop requires:

• one fixed search frame for the present question;
• a reproducible coverage basis or named gap for every included surface;
• a disposition for every found candidate;
• an exact direct-use relation for every depends branch;
• action-changing dependency closure with a stated stop;
• a subject result or named blocker for every depends branch; and
• preserved history, inspected unaffected uses, unresolved items, next receiver, and reopen observation.

When a coverage gap remains, finish independent resolved branches and return a scoped unresolved or blocked account for that surface. Do not describe undiscovered uses there as unaffected. Reopen only when a named source, claim, relation, included surface, subject result, applicability condition, or observation changes enough to affect the current conclusion.

#Archetypal Grounding

Tell. A source change matters through a claim that a receiving use actually relied on. Search helps find possible receivers; the receiver and its direct subject rule decide whether action changes.

#Show: Sensor-Calibration Range in an Actual Engineering Host

A pump-controller project used edition E2 of a sensor-calibration MethodDescription. E2 states that temperature compensation for module TS-2 is valid from -20 °C to 50 °C. E3 narrows ordinary validity to -10 °C through 50 °C and requires a new calibration Method and evidence below that range.

The search frame is the named pump-controller project, TS-2 configurations, current service-release interval, and the model, test, safety, interface-architecture, and decision stores used for that release question. Other hardware configurations are excluded when they do not use TS-2 under the changed condition.

The source-outward route follows exact E2 references and established traces. The receiver-oriented route scans the included stores for the old temperature range and equivalent cold-start premises. Inspection finds:

• the thermal-model parameter bound depends;
• the cold-start test condition depends;
• the safety claim's use of evidence produced under that condition depends, and its action-changing reach continues to the service-release premise; and
• the interface description's bibliography entry mentions only.

The affected reach stops at the last service-release action that can change. A practitioner or admitted System applies SYSE.19 to the discovery-and-reach statement. The independently governed engineering revalidation result records evidence that supports units S006–S008 under the tested conditions and leaves S009–S010 without the needed calibration evidence. That result goes directly to SYSE.14, where the authorized release decision remains. Only afterward does the common account cite that result, preserve the bibliography-only use and unaffected configurations, and summarize the affected release branches.

#Show: Financial Model and Data Refresh

A market-data supplier corrects a yield-curve claim for a named date range. The old claim was used by a valuation model and a cash forecast; a nearby finance memo merely cites the vendor report.

The search frame fixes the corporation and portfolio, jurisdiction, decision date, currency and instrument families, model and dataset inventory, finance-account stores, and the desks and periods explicitly excluded from the current question. Data lineage and source identifiers provide the source-outward route. A receiver-side scan checks model inputs, forecast assumptions, liquidity-account premises, and exposure calculations for the same or an equivalent claim.

The valuation input and forecast assumption are depends. The nearby memo is mentions only. One local workbook cannot be accessed, so that workbook is a discovery-coverage gap; it is not called unaffected. A practitioner or admitted System applies FIN.17 to the resolved discovery-and-reach statements, retaining finance-specific model, data, jurisdiction, accounting, reconciliation, evidence, and authority judgments within that application. The independently governed finance result goes as revision feedback directly to FIN.4. The common account cites that finance result afterward and keeps the inaccessible workbook as an explicit continuation item.

#Show: A Changed Research Estimate Is Only One Kind of Strategic Signal

An industry-research edition corrects an adoption estimate used as a premise for one strategic assumption and option. Nearby scenario prose cites the report without using the estimate.

The search frame fixes the named strategic decision, assumption and option registers, current scenario set, decision horizon, and source store. Source references and a receiver-side assumption scan identify the relied-on assumption branch as depends and the nearby citation as mentions only. An inaccessible business-unit assumption store remains a coverage gap.

A practitioner or admitted System applies STR.2 to the discovery-and-reach statement. That application keeps signal qualification, uncertainty, the affected strategic assumption, option or commitment consequences, horizon, and the assumption-impact result within STR.2's governing scope. The independently governed assumption-impact result goes directly to STR.3 and STR.4. A market or competitor change with no changed source claim goes straight to STR.2; it is not forced through A.10.1.

#Reduced Boundary Cases

#Bias-Annotation

This pattern counteracts version bias, visibility bias, graph-completeness bias, and authority transfer. A newer or official source deserves inspection, but recency and status do not establish materiality for a named use. A visible link or graph path is easier to count than an undeclared premise, and a polished impact report can look like a subject verdict.

The repair is deliberately asymmetric: tools may broaden candidate discovery, while inspection of direct receiving content and application of the direct subject rule or test narrow what can be concluded. The pattern therefore favors recoverable local closure over confident global claims. Sensitive repositories may use scoped, redacted, hashed, or responsible-party-attested searches, but their access limits remain visible.

#Conformance Checklist

#Common Anti-Patterns and How to Avoid Them

#Consequences

Benefits. Source changes receive effort proportional to their actual use. Teams can preserve inspected unaffected results, expose undeclared dependencies, continue clean branches despite a local gap, and apply the correct governing pattern to each affected question while preserving its evidence and authority boundaries. The account remains usable without a mandatory graph, matrix, workflow, or new ontology.

Costs and limits. Claim-sized comparison and receiver-oriented inspection require judgment. Coverage can be expensive when repositories are fragmented or access is restricted. The method makes those limits visible; it cannot convert incomplete access into assurance. A genuinely broad claim with many actual consumers can still produce broad revalidation.

Failure containment. A missing source fact, unresolved direct relation, inaccessible surface, or subject blocker narrows or blocks only the affected frame or branch. It neither invalidates unrelated uses nor supports a global unaffected-use claim.

#Rationale

The pattern begins under A.10 because a source change matters through reliance, not through source succession alone. It is separate from A.10 because one known source-to-use account and the discovery of several partly unknown receivers have different first actions, coverage burdens, and stop rules.

The search frame solves the unknown-receiver problem without claiming a universal corpus. Complementary discovery solves a second asymmetry: source-side traces miss undeclared or equivalent premises, while receiver-side searches can miss transformed or aliased source content. The direct-use test then prevents either search route from becoming semantic authority.

The subject-application/result sequence is deliberately acyclic. The common method can identify where subject judgment is needed, but applying it does not establish engineering release, finance reconciliation, strategic consequence, assurance, permission, or other domain meaning. Completing the account afterward preserves one practical overview without replacing the independently governed results that justify it.

No new kind or primitive relation is needed. Existing epistemes, direct relations, subject results, Work, plans, publications, and representations can carry every required claim. The method contributes a reusable action boundary, not an impact ontology.

#SoTA-Echoing

The practical SoTA contribution is the combination of claim-sized comparison, bounded bidirectional discovery, actual-use classification, dependency-closed reach, reuse of unaffected results, and an acyclic subject-application/result sequence. No one graph, repository, or status vocabulary substitutes for that combination.

#Relations

Builds on:

• C.2.1 for source-episteme identity, claim content, subject, interpretation basis, edition continuity, and publication/carrier separation.
• A.10 for each exact source-to-use account and its independent RelianceDisposition.
• A.11 for using existing kinds, relations, results, records, forms, and representations instead of minting an impact ontology.

Coordinates with:

• G.6 when an addressable evidence or provenance path slice is useful; graph representation remains optional and establishes no reliance.
• G.11 when currentness, decay, or the completed result justifies a refresh plan or report; G.11's result shape remains unchanged.
• E.15 as the specialization for changes to one FPF pattern edition, retaining Delta-Class, predecessor-function continuity, proportionate pattern checks, and its candidate-plus-change-account result.
• B.3 and every direct evidence, truth, causal, choice, authority, permission, gate, release, planning, and Work pattern governing the corresponding results.

Supplies: A practitioner using A.10.1 obtains a bounded discovery-and-reach statement for application of SYSE.19, FIN.17, STR.2, PSD.14, or another direct subject pattern when its actual receiving content relied on the changed claim. The independently governed subject result continues directly to its existing consumers; the completed A.10.1 account cites it afterward.

Constrains: changed-source affected-use discovery and local closure only. A.10.1 creates no new source, relation, graph fact, subject verdict, assurance, authority, permission, release, Work occurrence, plan, or universal status.

#A.10.1:End

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Last Updated: 2026-09-03 — this section last modified in upstream FPF commit 59c45532 (github.com/ailev/FPF)