HCD.Preface:5 - Pattern relations do not prescribe a lifecycle

HCD.1 may supply evidence input to HCD.3 and scope or result frames to HCD.4, HCD.2 and HCD.11. HCD.3 and HCD.4 may supply target, starting-evidence, protected-strength and priority values to HCD.2 or HCD.5. Equivalent qualified inputs permit direct entry; no pattern result follows merely from an adjacent number.

Before programme choice, HCD.5 can select a development Method for a candidate, HCD.6 can prepare its practice task, and HCD.7 can determine the support it needs and what is available. Use HCD.8 when obtaining or building a missing contribution changes the comparison. Develop only enough of each candidate to make the comparison useful. After a separate programme choice, complete or revise the selected Methods, tasks and support.

HCD.5, HCD.6 and the enabled HCD.7/HCD.8 contributions may supply HCD.9. HCD.9 may supply practice history to HCD.10 or an attempt to HCD.11; HCD.10 designs later episodes but does not make their performance or retention findings.

HCD.11 can supply performance evidence to HCD.12 and HCD.13. Equivalent qualified observations permit direct entry. HCD.14 may use a compatible result from any one of HCD.11, HCD.12 or HCD.13; it need not wait for all of them. New evidence may also update HCD.3’s diagnosis, HCD.4’s profile, HCD.2’s comparison or HCD.5’s selection when it changes their question.

A compatible HCD.14 revision hypothesis may inform HCD.15’s continuing-arrangement decision or HCD.17’s cultural-variation comparison. Observed HCD.15 arrangement use and human-development evidence may inform HCD.16. A bounded HCD.16 repertoire disposition or status-preserved candidate variation may inform HCD.17. All four relations are conditional receiver-governed inputs: a missing, stale or differently scoped result requires a qualified direct substitute or an exact missing-result return, and no receiver waits merely because one PatternID is adjacent.

HCD.18 supplies a specification to HCD.19 only when construction or revision is needed. A compatible existing specification permits direct evaluation. HCD.19 returns the material-specific defect and affected-use test to E.23; any HCD.11–HCD.13 use consumes only observations qualified for its own human-evidence question. Narrative attachment and progressive reconstruction use NSTD.6/.8 when that branch is live.

HCD.28 joins the required subject, teaching, task and supply results into a whole learning route and compares serious alternatives. HCD.20 supplies the applicable arrangement comparison; HCD.22 supplies the actual shared task. Their results can return a changed burden or missing contribution to HCD.28. HCD.2 consumes a suitable product variant only after adding the known person’s relevant conditions. HCD.21 supplies compatible participants and contact; HCD.23–25 supply a selected interaction method. HCD.26 can return a missing subject or support contribution from an actual attempt, and HCD.27 supplies the material and timing connections among episodes. These relations allow direct entry, iteration and a sufficient individual product; they are not a compulsory sequence through all nine methods.

Use the smallest pattern whose result changes the current decision. A new observation reopens only the claims and receiving decisions whose evidence, conditions, or retry predicates it changes.

To combine uses, first name the result the combination should produce and the values each receiving Method actually needs. Reuse a result only when person or population, contribution, later Work, conditions and evidence window fit that receiving use. Then identify dependencies that require order, contributions used together, and competing demands on time or support. An available direct result can close a dependency immediately. HCD.8’s obtain-or-build comparison is useful only when an exact missing contribution blocks the selected use. The Direct result relations table locates these returns; the bodies explain how each result is produced.

For example, a practitioner can combine HCD.6, HCD.7 and HCD.9 for one supported practice task when the target and Method are already qualified. A fresh transfer miss can instead combine HCD.12 with HCD.14 to test a local revision, without rebuilding demand or waiting for a delayed observation. In a programme comparison, HCD.2 needs enough task, Method and support detail to compare complete candidates; fuller elaboration follows the separately selected use. These combinations share contributions, while their result, evidence and stopping question differ.