C.39:4.3 - Construct an explained candidate
Start from the recovered operation and locate what prevents the receiving result: an unavailable input, a case-specific choice, an incompatible intermediate result or a failed condition. B.5.RC helps recover a described construction; B.5.TU helps construct a calculation, prediction or other operation using an available theory.
Work backward from the needed result, then forward through a proposed way. Say what the receiving action must obtain and why. Follow that requirement back to what an available operation can actually supply. Where the two do not match, construct a transformation of the input or result, replace the failing operation, or change the arrangement. For example, a temperature result in Fahrenheit does not yet supply a Celsius threshold check: recover the units and use a justified conversion before applying the threshold. If the unit is unknown, arithmetic cannot repair the missing fact. If two records refer to different objects or intervals, unit conversion alone cannot join them.
Follow the proposed way forward on concrete material. At each consequential join identify what arrives, how its meaning, scope, units, state, precision and conditions are interpreted, what the receiving action does with it, and what permits that action. Explain the transformation where it is missing. A qualified supplied operation can remain intact when the practitioner can obtain its result under the required conditions. Compatible data types alone do not establish that two versions, intervals, assumptions or resource demands fit together.
Keep source-supported operations, proposed correspondences and new inferences distinguishable. Name what would defeat a consequential inference. If connecting inspection cases to setups requires a field that was never recorded, the candidate cannot justify the intended comparison. Recover the information, find another linking operation, or return a narrower result. A failed correspondence does not show that the source Method is useless in its own conditions or that the receiving problem is insoluble.
C.39:4.3.1 - Give the connection its actual relation
Select only the structures whose relations change the use; C.30.ASV:4.5a develops that selection. An ordinary explanation can suffice. Use A.22 when a stronger structure claim is needed.
- Result use and continuation. For a serial connection, show why a result supplies the next precondition. For parallel work, explain the relied-on independence and how results join, including simultaneous resource demands. For alternatives, state the distinguishing condition and what happens when it is unknown or none applies. For iteration, say what the last result changes and when another attempt is unwarranted. A fallback needs a recognizable trigger and a result still useful to the receiver. A.22.CGUS develops the question of currently possible continuations; its formal qualification is needed only for the stronger claim.
- Composition and enactment. Call the connected operations one Method when the proposed whole has its own reusable action, applicability, result and constituent relations under A.3.1 and B.1.5. When an actual action performs part of encompassing Work, B.1.5.EW recovers that relation and the whole’s constraints. Neither relation is just temporal order. A list of independently usable Methods can explain result uses without asserting one whole.
- Generality, variation and replacement. C.39.RO separates variable inputs from retained premises and develops a construction into an operation usable on another occasion. A permitted parameter change can remain a variation of one Method. Directed refinement between Methods additionally needs the comparison in A.3.1:4.7–4.8: participants, applicability, premises, action, intended result, constraints and acceptance conditions, with a stated direction and preserved meaning. A replacement also needs its affected uses and possible losses. Ordinary comparison suffices when no stronger identity or refinement claim is needed.
- Use across domains. A calculation, instrument model, observation method and access arrangement may support the same work. Explain the result each supplies and its conditions. That dependency neither makes one discipline a part of another nor assigns it a universal rank.
These relations can intersect. A calculation may constitute part of preparation while its result supports several independent uses. Name the relations separately. If a diagram calls them “vertical” and “horizontal”, state its orientation and represented relation under A.22:4.3a; the axes themselves supply no meaning. FPF, DPF and LPF name framework scope and basis, not a ready-made stack of Methods.
C.39:4.3.2 - Repair the difficulty the case exposes
The following remedies concern recurring failures of construction or connection. Select the actual question, follow its dependencies, and stop at the sufficient result; this is neither a complete taxonomy nor a compulsory traversal.
| Recognizable difficulty | Constructive move and useful result | Developed supplier when needed |
|---|---|---|
| One operation’s result cannot be used by the next | Align meaning, scope, units, state and preconditions; construct the missing transformation or change an operation. Examine the join and intended effect together. | C.39:4.3; B.1.5:4.2–4.4 for qualified composition and interfaces; C.39.RO:4.3 for reusable adaptation |
| Improving one action defeats encompassing work | Recover the whole being performed through the action. Derive which action or coordination changes under the whole’s conditions; retain unaffected parts. | B.1.5.EW:4 |
| A response or operation exists, but its useful application is missing | Construct and try a receiving use, allowing the result to revise the question or means while keeping the original need visible. | C.40.CD:4.2–4.5; C.40.CU:4.2–4.5 |
| Success relies on assistance omitted from the account | Separate what a trial revealed from what it supplied or changed; include the necessary preparation and support in the arrangement being explained. | C.40.CU:4.3–4.6. When the same holder has a qualified prior result or current capability claim but now fails or transfers poorly, E.23.CAE distinguishes support, applicability, access, expression, adaptation and enactment difficulties from capability change; the differential can remain unresolved. |
| A replacement helps one use and breaks another | Compare it under each affected use and joint conditions; retain, restrict, adapt or reject it accordingly. | B.1.5.RS:4 |
| Basic operations and purpose are known, but intermediate coordination cannot be performed | Distinguish a missing explanation from unavailable acquisition, access or support. Construct the former; develop or obtain the latter at the scale of the gap. | B.1.5.EW:4; E.23.CDI for capability development; C.36.RP:4 for continuing availability |
| A branch returns a result but leaves the next action unclear | Explain which condition it answers, leaves open or contradicts; supply a conditional return, narrower use or affordable stop. | C.40.CD:4.4–4.6; C.40 for material retention and continuation |
| The same words hide different objects or relations | Recover the actual input, output and claim; repair the distinction whose consequences decide the join. An indication needs an interpreting relation before it can support a judgement. | A.7.1; B.1.5 for the resulting composition |
| A chain hides alternatives or imposes an unwarranted order | Recover the possible continuations and their conditions; prescribe order only where the Method or a dependency requires it. | A.22.CGUS; B.1.5 for order-sensitive composition |
| A successful reconstruction remains private | Explain its reusable actions, reasons, limits and a changed use for the intended next practitioner, choosing a suitable description form. | C.39:4.5–4.6 |
Two diagnoses may concern one failure. An input conversion can be both unexplained and unavailable to the intended performer. Repair the relevant dependency and return to the original result. A second label does not require another pattern. A consequential difficulty absent from the table still calls for recovering the failed relation and constructing its remedy.
Keep an unavailable domain operation visible. General guidance can identify a required reset, calibration, joint movement or negotiation without possessing a means to perform it. A supported conditional construction with that gap may be the useful result.