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Chapter 05 of 14 · Part II · Draft web edition

A high seam score can coexist with failed garment assembly

Whole-garment assembly must be checked separately from edge-level prediction metrics.

Sections
7
Exhibits
5
Minutes
25
Sources
6
EX 21 · Duplicated panel: Direct localisation from relationship record 7.8, Need for cross-layer or physical confirmation 6.4. Quadrant: Hold for technician review

The cloth is woven from this chapter's 5 exhibits: each weft is one exhibit's own data, normalised; each warp group is a section. The probe reads the exhibit's own value where it crosses. Procedural visualisation, not a measurement.

The chapter as a draft: 7 sections, 2 exhibit wefts, one shuttle.

Lead exhibit · 21Decision mapillustrativeAssembly errors need categories before rates
Investigate in contextHold for technician reviewCheck topology recordRetest digital assemblyDirect localisation from relationship record →Need for cross-layer or physical confirmation →Missing seamIncorrect pairingUnexpected openingReversed orientationDuplicated panelUnsupported construct…Layer collision

Read-outMissing seam: Direct localisation from relationship record 9, Need for cross-layer or physical confirmation 2. Quadrant: Retest digital assembly

Method and source

Illustrative GFT analytical placement, not observed defect frequency, probability or severity. Horizontal position expresses how directly the proposed failure can be localised from a two-dimensional relationship record. Vertical position expresses the proposed need for cross-layer or physical confirmation. S12 motivates topology failure review and S20 motivates contextual empirical evaluation. Positions are workshop judgements to be tested locally.

Unit: illustrative review placement (0 to 10). Status: illustrative. Sources: S12, S20. Illustrative figures are teaching examples, not measured factory results.

The chapter's warpBar: share of the reading · square: an exhibit

Section 5.0 · Opening · 1 min · no exhibit of its own · one movement Go to section ↓

Overture · 1 min

A greenfield apparel maker should not release a generated pattern because a model reports a high seam-prediction score. The score may describe individual relationships, while the production question is whether every required relationship in one garment is correct, physically constructible and approved. AutoSew makes that distinction visible: its test results include strong total relation metrics alongside a lower share of completely resolved digital garments.[S12] GFT therefore recommends a gate with separate outcomes for relation prediction, complete topology, simulated assembly, technician correction and physical seam approval. Each outcome needs its own numerator, denominator, evidence record and authorised decision. A digital pass can narrow the search for errors. It cannot convert a research benchmark into a factory acceptance result.

¶ 01 · 1 source

S12

5.12 min · 6 paragraphs · read with a related exhibit

Seam correspondence determines how panels become a garment

A flat pattern becomes an assembly instruction only when its boundaries carry relationships. Panel geometry describes where fabric ends. Seam correspondence states which boundary meets another, in which orientation and, where relevant, in which order. AutoSew addresses this problem by treating pattern contours as a graph-matching task, using geometric context to predict stitch relationships without requiring panel names. Its formulation also permits edges to remain unmatched and supports multi-edge connections.[S12] PatternGSL takes a different representation route but makes the same underlying information explicit through panel boundaries, parameterised seams and stitch topology.[S14] Neither representation should be reduced to a drawing of touching lines.

This distinction matters when a technician edits a pattern. Moving a vertex changes geometry. Changing an edge reference changes the assembly. A revision can preserve the visible silhouette while connecting a sleeve to the wrong armhole boundary, reversing one edge or leaving an opening unintended by the designer. Conversely, a large geometric edit can remain correct if the relationship record follows the affected edges. The review unit must therefore include both the contour and the topology, with stable identifiers linking them.

¶ 02

GFT proposes a seam record for the illustrative cotton shirt that contains a seam-pair identifier, the source and destination panel and edge identifiers, sewing direction, gathering or easing intent, notch references and an exception comment. These fields are a release-dossier design, not fields claimed to exist in AutoSew or PatternGSL. Direction should describe the oriented relationship between boundaries. It should not silently be treated as the complete machine sequence, which depends on the construction method and the other operations around the seam.

¶ 03

Stable identifiers need revision discipline. An array position is not a durable identity because splitting a curve or inserting a notch can reorder the data. The corrected record should carry forward the prior seam-pair identifier where intent is unchanged, create a new identifier where construction intent changes and record supersession rather than overwriting the approved version. This allows a reviewer to distinguish a geometric refinement from a new assembly decision.

¶ 04

The record should also distinguish required, optional and intentionally unstitched boundaries. AutoSew's partial-assignment formulation is useful precisely because not every edge must be forced into a pair.[S12] A factory validator needs the same conceptual freedom, but with an important addition: an unmatched edge requires a reason when the product specification expects a closed seam. Free hems, openings and construction-specific exceptions belong in the technician's intent record rather than being inferred from absence alone.

¶ 05 · 1 source

S12

Note · 2 sources

S12S14

5.23 min · 8 paragraphs · 2 exhibits

Edge-level F1 is not a whole-garment acceptance rate

Exhibit 18Line boardsourcedAutoSew reports distinct relation and assembly metrics

Read-out · sourcedTotal relation F1: 96.2%. Precision 96.1%; recall 96.3%; all evaluated relations

Method and source

Sourced from AutoSew full-text sections 8.1 and 8.2. Total and multi-edge metrics concern stitch correspondences on the authors' test set. Garment sewn percentage is fully resolved test patterns divided by all test patterns. The abstract rounds total F1 to 96 percent. These are digital benchmark results, not physical sewing yield or GFT performance.

Unit: percent, with different denominators. Status: sourced. Sources: S12.

AutoSew reports total precision of 96.1 percent, total recall of 96.3 percent and total F1 of 96.2 percent on its multi-edge test setting. Its garment sewn percentage, meaning the share of test patterns for which all ground-truth stitch correspondences are predicted correctly, is 73.3 percent. The abstract rounds the total F1 result to 96 percent.[S12] These are compatible results because the denominators and acceptance rules differ. Relation metrics count correspondences. Garment sewn percentage counts complete patterns and gives no partial credit to a garment with mostly correct relationships.

¶ 01 · 1 source

The abstract rounds the total F1 result to 96 percentS12

Related · Exhibit 27 · chapter 07

S12

Precision asks how many predicted relationships agree with the reference among all predicted relationships. Recall asks how many reference relationships are recovered among all reference relationships. F1 is their harmonic mean. None of these measures, by itself, states how errors are distributed across garments.[S12] A small number of relation errors can be concentrated in a few difficult garments or dispersed across many. Those distributions have different consequences for complete digital assembly even when the aggregate relation counts are identical.

¶ 02 · 1 source

S12

The distinction becomes sharper for difficult subsets. AutoSew reports multi-edge precision of 80.4 percent, multi-edge recall of 89.5 percent and multi-edge F1 of 84.7 percent, below its total relation F1 in the same evaluation.[S12] A headline total can therefore coexist with weaker performance on the construction cases that most need technician attention. This is not a universal ranking of models or garment types. It is a reason to read the test protocol, subset definitions and complete-garment outcome together.

¶ 03 · 1 source

AutoSew reports multi-edge precision of 80.4 percentS12

S12

{{xr:wp10-ch05-autosew-metric-boundaries}} places the reported measures side by side without putting them on a false common denominator.

¶ 04

The exhibit does not show that 26.7 percent of physical garments would fail. The arithmetic complement, 100 percent minus 73.3 percent, is 26.7 percent of the authors' digital test garments not fully resolved under their stated benchmark rule.[S12] It does not measure cutting defects, seam strength, production rework, operator time or a Cameroonian factory outcome. It also does not establish that a human technician could not correct the digital outputs. Those are separate questions requiring separate observations.

¶ 05 · 1 source

100 percent minus 73.3 percentS12

S12

Note · 1 source

S12

{{xr:wp10-ch05-f1-assembly-scenarios}} preserves that worked example in a compact comparison. It also shows why raising a relation score to a power is not a valid way to infer garment success: F1 is not an independent per-garment survival probability, and errors need not be independent within or between garments.[S12]

¶ 06 · 1 source

S12

Exhibit 19RegisterillustrativeIdentical relation F1 can produce different assembly outcomes
Error allocation
Concentrated
TP / FP / FN
960 / 40 / 40
Relation F1
96%
Garments with errors
20
Error-free garments
80 of 100

Read-outError allocation: Concentrated. TP / FP / FN: 960 / 40 / 40. Relation F1: 96%. Garments with errors: 20. Error-free garments: 80 of 100

Open the full register (2 rows)
Concentrated960 / 40 / 4096%2080 of 100
Dispersed960 / 40 / 4096%7327 of 100
Method and source

Illustrative GFT arithmetic, not observed AutoSew error allocation. Both rows use 1,000 predictions with 960 true positives, 40 false positives and 40 false negatives, giving 96 percent precision, recall and F1. The only change is how the 80 errors are distributed across 100 garments. S12 motivates the separate whole-garment metric.

Unit: illustrative counts. Status: illustrative. Sources: S12. Illustrative figures are teaching examples, not measured factory results.

For a local pilot, the useful report is consequently a small metric family rather than one headline. Keep relation precision and recall for diagnosis, complete digital assembly for system-level screening, technician-corrected assembly for the assisted workflow and physical seam approval for release. Record all four with their denominators. NIST's framework calls for accuracy measures to use clearly defined, realistic test sets and documented methods, while leaving risk tolerance to the organisation.[S19] GFT's proposed acceptance thresholds should likewise be agreed for the intended shirt, fabric and buyer before results are reviewed, not imported from the AutoSew benchmark.

¶ 01 · 1 source

S19

5.33 min · 7 paragraphs · read with a related exhibit

Many-to-one relationships require construction intent

Related · chapter 077 paragraphs step it

Related exhibit 28 · chapter 07LayersillustrativeBody measurements and ease connect intent to evaluation
Physical approvalMeasured finished sampleWearer activity reviewRecorded conditions and excep…Digital evaluationDeclared avatar and poseMaterial and solver revisionPredicted dimensions and cont…GarmentspecificationFinished points of measureLocal ease mapPattern and grading revisionBody evidenceDefined landmarks and postureDirect or inferred basisApproved body representationWearer and productintentUse and activity requirementSize range and fit characterConsent and permission bounda…

Read-outPhysical approval: Measured finished sample, Wearer activity review, Recorded conditions and exceptions

Method and source

Illustrative GFT evidence architecture informed by explicit local ease in S27 and body-shape assumptions in S30. It is a proposed record structure, not an implemented GFT system or a claim of physical validation.

Unit: evidence layers. Status: illustrative. Sources: S27, S30. Illustrative figures are teaching examples, not measured factory results.

Read this exhibit in its chapter ↗
5.3 · Introduction · paragraph 1 of 7

Real construction does not always present one edge on one panel and one identical edge on another. AutoSew's authors created their multi-edge dataset after identifying cases where a sleeve attaches to both front and back torso panels. Their representation also merges split sleeves, cuffs and torso pieces to reduce artificial one-to-one assumptions in the source data.[S12] The technical problem is therefore not just finding two similar curves. It is deciding how a boundary segmented in one representation corresponds to several boundaries in another while preserving the intended assembly.

Segmentation can change for innocent reasons. A curve may be divided at a notch, split by a design edit or represented as one continuous edge on the opposing panel. A validator that expects equal edge counts would reject a workable correspondence. A matcher that forces every edge into exactly one pair could invent crossings or leave part of a required seam uncovered. The release record should instead describe coverage: which portions of each boundary participate, their directions and the references that align them.

Length equality is also an incomplete test. The illustrative shirt can include intentional fullness where a sleeve meets a cuff, or controlled easing around an armhole. The technician should record that intent, the relevant notches and the accepted construction method. A raw length difference then becomes a prompt to inspect the easing specification, not automatic proof of an error. Equally, calling every mismatch ease would conceal a genuine drafting fault. The exception is valid only when a responsible technician records it against identified edges.

A useful many-to-one review asks four questions. Does every required portion of the longer boundary map to a destination? Do the mapped portions avoid unintended overlap or gaps? Do orientations and notches place fullness where the design intends? Does the physical construction instruction explain how the operator should manage that fullness? The first three questions concern digital topology. The fourth belongs to the sample room. Keeping them separate prevents a plausible simulation from filling in a missing instruction.

AutoSew's lower multi-edge F1 than total F1 reinforces the need to inspect this subgroup separately in its benchmark.[S12] It does not follow that every sleeve, cuff or gathered seam in another dataset will behave similarly. The local test should select actual pattern variants, including held-out segmentation changes, and report failures by construction family. A greenfield maker can then learn whether its own representations preserve many-to-one intent before it considers automation beyond a narrow block library.

This protocol creates evidence at the point where a metric loses detail. If the digital check fails, the reviewer receives edge identifiers and a coverage map. If the physical check fails after a digital pass, the reviewer knows that topology alone was insufficient and investigates the construction specification or material interaction. Both outcomes are useful because they locate the next decision instead of merely labelling the garment defective.

5.42 min · 7 paragraphs · 1 exhibit

Geometric validity does not settle the sewing method

A correct relationship says that two boundaries should meet. It does not specify the seam type, stitch formation, thread, reinforcement, allowance, finishing operation or machine arrangement needed to join them. PatternGSL's explicit seams and stitch topology make structure available for simulation, but its abstract does not establish those factory instructions or production tolerances.[S14] AutoSew's geometric input and digital assembly metric answer a similarly bounded question.[S12] A production release needs an additional construction layer.

GFT proposes that this layer begin with the approved material and trim identifiers, then name the seam and stitch requirement, seam allowance, edge finish, reinforcement and machine or attachment constraint. The record should identify where a construction choice is mandatory and where the sample technician may select an equivalent method. Thread and needle details should be completed from actual product and equipment evidence rather than generated as plausible text. If a choice remains open, the field should read awaiting technician decision, not inherit a generic shirt recipe.

¶ 02

The distinction between stitching line and cutting line is central. Seam correspondence belongs to the intended join. Seam allowance determines the material retained beyond that join for assembly and finishing. An automated topology check can pass while an allowance is absent, inconsistent with the selected construction or incorrectly transferred during export. The reviewer must therefore inspect allowance geometry and annotations alongside the relationship, without mistaking a closed outer contour for a complete sewing instruction.

¶ 03

Construction order also needs an owner. Attaching a collar, closing a cuff or finishing a placket can change access for a later operation. The digital relationship graph may remain correct while the proposed sequence is impractical. For the illustrative shirt, the sample technician should review closure order, visible finishing and access to layered areas before approving the sample plan. This is a proposed GFT review, not an output guarantee from either cited garment model.

¶ 04

{{xr:wp10-ch05-construction-specification}} separates what the digital relationship contributes from what the release dossier must add.

¶ 05
Exhibit 20RegisterillustrativeDigital correspondence omits physical construction choices
Specification element
Seam identity
What topology can carry
Source and destination edges
What the technician must add or confirm
Stable seam-pair ID and intended operation

Read-outSpecification element: Seam identity. What topology can carry: Source and destination edges. What the technician must add or confirm: Stable seam-pair ID and intended operation

Open the full register (9 rows)
Seam identitySource and destination edgesStable seam-pair ID and intended operation
Direction and alignmentOriented relationship and endpointsNotches, starting reference and easing distribution
AllowanceAssociated boundary geometry where encodedNet-to-cut allowance and suitability for the selected seam
Seam and stitchNo complete machine methodSeam type, stitch requirement and acceptable alternative
Material interactionPanel identity where linkedApproved fabric, trim, thread and interlining records
ReinforcementNo stress or durability evidenceReinforcement location and agreed physical test
Machine arrangementNo equipment instructionMachine, folder or attachment constraint and sample-room review
Assembly sequenceRelationships between panelsOperation order, access and closure review
AcceptanceDigital assembly resultPhysical sample evidence and authorised approval
Method and source

Illustrative GFT teaching checklist for the running cotton-shirt example. S12 supports the bounded digital stitch-correspondence task and S14 supports explicit topology. The physical construction fields and review questions are GFT proposals, not outputs or guarantees reported by those papers.

Unit: proposed release fields. Status: illustrative. Sources: S12, S14. Illustrative figures are teaching examples, not measured factory results.

The table is deliberately a handoff checklist rather than a claim about a universal seam library. The appropriate construction depends on the chosen product, material, equipment and buyer requirement. A changed fabric or machine can reopen a previously acceptable choice even if topology stays unchanged. Material review belongs to Chapter 6, and receiving-CAD verification belongs to Chapter 9, but the seam gate must preserve the identifiers those later checks need.

¶ 01

Physical approval should also state what was actually inspected. A sample can demonstrate the selected construction under recorded conditions. It does not prove every size, fabric batch or production operator will reproduce it. Where seam performance matters, the responsible team should define the test method and acceptance condition before sampling. Without that record, a neat photograph is only appearance evidence, not evidence of strength, durability or production capability.

¶ 02

5.53 min · 9 paragraphs · 1 exhibit

Assembly review needs an explainable failure taxonomy

Related · chapter 139 paragraphs step it

Related exhibit 52 · chapter 13Decision mapillustrativeA pilot needs both routine and held-out cases
Routine brief to held-out brief →Established to difficult construction →A1A2A3A4B1B2B3B4C1C2C3C4

Read-outA1: Routine brief to held-out brief 0.1, Established to difficult construction 0.1

Method and source

GFT planning design: 12 styles = 3 families x 4 styles. Cases 1 and 2 in each family are routine approved-block variants; cases 3 and 4 are held out from prompt, template and integration adjustment. Coordinates arrange brief familiarity and construction challenge only. Product choices, permissions, materials, wearer needs and buyer conditions remain local inputs. This sample has no claimed statistical power.

Unit: illustrative case positions, not performance scores. Status: illustrative. Sources: S19, S30. Illustrative figures are teaching examples, not measured factory results.

Read this exhibit in its chapter ↗
5.5 · Introduction · paragraph 1 of 9

A single pass or fail field is too coarse to manage correction. Parsing can fail before relationships are predicted. Prediction can produce an incorrect pair. Deterministic validation can detect an unintended opening. Simulation can expose an assembly problem. A technician can correct the topology without changing the model. A physical sample can fail after every digital stage passes. These are different events, and combining them into one defect rate would hide the intervention that resolved the problem.

GFT proposes six starting failure categories: missing seam, reversed orientation, incorrect pairing, unexpected opening, duplicated panel and unsupported construction. Layer collision is added when multi-layer review applies. The taxonomy is a teaching and pilot design, not a measured distribution. Each code should attach to a pattern revision, model and configuration record, panel and edge identifiers, an annotated view, the stage that detected it and the responsible correction role. A free-text explanation can add context, but it should not replace the structured code.

The correction record needs an outcome as well as a cause. Useful states include returned to geometry, returned to construction intent, accepted as an equivalent valid topology, corrected and awaiting retest, physically rejected and released after approval. The equivalent-topology exception matters because AutoSew's authors report that identical or interchangeable panel shapes can cause valid solutions to be treated as failures against a single ground-truth arrangement.[S12] A technician must be able to record why an alternative is construction-equivalent rather than allowing the benchmark label to dictate the factory decision.

Retest scope should follow the failure. A reversed edge requires a topology and orientation retest. A changed allowance requires geometric readback and construction review. A duplicated panel may require component-count, material-use and assembly checks. An unsupported construction requires sample-room evidence even if the corrected file simulates. The record should name the retest and prevent an unrelated successful check from clearing the original failure automatically.

{{xr:wp10-ch05-failure-taxonomy}} maps the proposed categories by the kind of review they need, not by invented frequency or severity scores.

The positions are not measurements and should not be averaged into a risk score. Their purpose is to prompt the right evidence attachment. A missing seam should be visible in the relationship record, while unsupported construction may remain invisible until a technician examines the method or a sample is made. Local review can replace the illustrative placements with observed detection stages and correction effort after enough cases have been recorded.

Severity should remain separate from detection ease. An error that is obvious in a topology view can still have serious construction consequences, while a subtle visual anomaly may have no effect on the approved assembly. The responsible team should define criticality by the affected product function and release decision, not by the matrix coordinates above. Any criticality rule should be agreed before the pilot and applied consistently to manual and assisted work. NIST leaves such tolerance decisions to the organisation rather than prescribing a universal threshold.[S19]

Aggregation needs equal care. Several failed relationships inside one garment can explain one complete-assembly failure, but they must not be counted as several failed garments. Conversely, one garment-level pass must not erase the number of corrections needed to reach it. The pilot register should therefore link relation events to a garment identifier and preserve both views. Missing simulation results, abandoned runs and cases withdrawn for unrelated material reasons should remain visible with an exclusion reason rather than disappearing from the denominator.

5.62 min · 6 paragraphs · read with a related exhibit

Layering increases the need for inspection

Layered garments add relationships that a single visible shell can conceal. Interfacing, linings, cuffs, collars and overlapping panels introduce questions about which layer sits where, which edges remain accessible and when a closure should occur. A clean rendered exterior cannot answer all of them. ContourCraft addresses collisions and intersections in learned multi-garment simulations, describing that problem as largely unsolved and proposing an intersection-contour loss with collision-avoiding repulsion.[S06] That research is relevant to simulation quality. It is not evidence that a rendered layered garment can be sewn to specification.

DressAgent studies a different but related problem: reconstructing layered outfits through layer planning, pattern estimation and closed-loop refinement grounded in physical simulation. Its agents edit, simulate and judge patterns against a reference using visual and measured evidence.[S18] This makes layer order and iterative correction explicit research concerns. It does not make an agent's final render equivalent to a technician-approved construction sequence. The abstract reports a research method and benchmark claims, not a factory release protocol or a locally reproduced result.

¶ 02 · 1 source

S18

The seam gate should therefore request a layer-stack view in addition to the flat topology. For each relevant region, the technician should identify outer fabric, lining or interfacing, the order in which layers are assembled and the operation that closes the region. Hidden edges need the same stable identifiers as visible ones. If the simulator resolves an initial intersection, the record should preserve that event and the correction rather than presenting only the cleaned final image. A repaired visual state is not proof that the underlying pattern or construction intent was repaired.

¶ 03

The illustrative cotton shirt offers a bounded test without needing a complex outerwear example. Collar stand, collar fall and interfacing create a layered assembly. Cuffs and plackets create closure and access questions. The technician should review these regions with annotated cross-sections or an equivalent physical construction reference, then confirm the sequence on a sample. This is a GFT proposed inspection method. No claim is made that ContourCraft or DressAgent supplies the required cross-section, seam allowance or factory operation order.

¶ 04

Simulation evidence remains useful within this boundary. It can draw attention to intersections, implausible layer order or geometry that cannot initialise cleanly. The reviewer should log the simulator and settings, avatar or body representation, material revision, initial failures and corrections. Those records allow a later reviewer to distinguish a topology correction from a solver workaround. Material parameters still require the physical evidence process in Chapter 6, and fit requires the separate size-aware checks in Chapter 7.

¶ 05

A layered test set should include deliberate hidden-layer errors as well as ordinary approved variants. Otherwise, a pilot may demonstrate only that the system handles cases already close to its training or tuning examples. NIST guidance supports contextual testing and expert involvement rather than assuming that a laboratory result transfers unchanged to operational conditions.[S19][S20] The maker's acceptance question is not whether a render looks resolved. It is whether the specified layers can be assembled in the recorded order with the actual materials and equipment.

¶ 06 · 2 sources

S19S20

5.73 min · 9 paragraphs · 1 exhibit

A seam gate should return evidence with the rejection

Step 1 of 7Freeze pattern geometry

Exhibit 22 · illustrativeA failed seam must return to an identified correction point

FreezepatterngeometryPropose seamrelationsValidatecompletetopologyTest digitalassemblyReviewconstructionintentApprovephysical seamsampleAuthorisespecifiedrevisionReturnevidence andcorrection
Freeze pattern geometryPropose seam relationsValidate complete topologyTest digital assemblyReview construction intentApprove physical seam sampleAuthorise specifiedrevisionReturn evidence andcorrection

Freeze pattern geometry

Freeze pattern geometry. From Return evidence and correction (Correct geometry). Leads to Propose seam relations. · illustrative

The final gate should be a decision record, not a score threshold copied from a paper.

Propose seam relations

Propose seam relations. From Freeze pattern geometry, Return evidence and correction (Correct topology). Leads to Validate complete topology. · illustrative

Validate complete topology

Validate complete topology. From Propose seam relations. Leads to Test digital assembly, Return evidence and correction (Fail). · illustrative

Review construction intent

Review construction intent. From Test digital assembly, Return evidence and correction (Correct method). Leads to Approve physical seam sample, Return evidence and correction (Hold). · illustrative

Approve physical seam sample

Approve physical seam sample. From Review construction intent. Leads to Authorise specified revision (Pass with approval), Return evidence and correction (Reject). · illustrative

Authorise specified revision

Authorise specified revision. From Approve physical seam sample (Pass with approval). End point. · illustrative

Return evidence and correction

Return evidence and correction. From Validate complete topology (Fail), Test digital assembly (Fail), Review construction intent (Hold), Approve physical seam sample (Reject). Leads to Freeze pattern geometry (Correct geometry), Propose seam relations (Correct topology), Review construction intent (Correct method). · illustrative

Method and source · Exhibit 22

Illustrative GFT workflow informed by the digital stitch task in S12 and the contextual evaluation and monitoring guidance in S19 and S20. The physical sample and release roles are GFT proposals. The flow is not a reported implementation or a measured factory process.

Unit: proposed decision sequence. Status: illustrative. Sources: S12, S19, S20. Illustrative figures are teaching examples, not measured factory results.

5.7 · the bodyExhibit 22 above; its figures are illustrative where marked.

The final gate should be a decision record, not a score threshold copied from a paper. GFT proposes releasing a seam specification only when every required relationship is identified, orientation and coverage checks pass, intentional fullness has an approved exception, no unexplained opening or duplicate component remains, and the construction record is complete. Simulated assembly must have no unresolved issue relevant to release. Where physical sampling is required, the responsible technician must record the sample outcome and any conditions before bulk authorisation.

A rejection should contain enough evidence for another person to act without rerunning the entire investigation. The minimum packet is an annotated panel view, failed relationship or region identifiers, the detecting stage, the failure code, the current pattern revision and the required correction owner. If the reviewer already knows the appropriate correction, the packet can propose it, but the corrected topology must remain distinguishable from the rejected version. The last approved pattern revision remains available throughout.

¶ 02

Routing should follow the cause. Ambiguous panel boundaries return to the geometry process in Chapter 4. Fabric-dependent seam behaviour returns to the material review in Chapter 6. Missing or distorted annotations after export go to the receiving-CAD readback in Chapter 9. Unsupported construction returns to the sample technician. This prevents every problem becoming a prompt revision and prevents a model update being used as a substitute for engineering correction.

¶ 03

{{xr:wp10-ch05-seam-evidence-loop}} shows the proposed loop, including the return path that a simple linear generation pipeline omits.

¶ 04

The flow separates correction of geometry, topology and method because they do not always require the same retest. It also makes physical approval a distinct state rather than an automatic consequence of simulation. What the diagram cannot show is workload. A pilot should record technician correction time, repeated failures and waiting time so that a high final approval share does not conceal an unacceptable review burden. Economic analysis belongs to Chapter 12; the seam gate supplies the events and denominators.

¶ 05

Four proposed measures can make the gate inspectable. First-pass complete digital assembly divides garments passing the defined digital gate without technician topology correction by all evaluated garments. Corrected digital assembly divides garments passing after recorded corrections by all evaluated garments. Physical seam approval divides samples meeting the agreed construction conditions by all evaluated samples. Escaped seam failures count relevant failures detected after the declared release point, with the release population and observation window stated. None has a local baseline yet, so no target value is asserted here.

¶ 06

Relation precision and recall can remain diagnostic measures alongside these outcomes, particularly for multi-edge subsets. They should not replace the complete-garment measures. Nor should corrected digital assembly be compared directly with first-pass assembly without disclosing technician effort. The measurement design follows NIST's emphasis on defined test contexts, realistic test sets and human judgement about thresholds, while the organisation retains responsibility for its own risk tolerance.[S19][S20]

¶ 07 · 2 sources

S19S20

For GFT's Cameroon textile programme, the practical recommendation is to qualify this gate on approved local blocks before expanding generative specification work. Begin with a narrow shirt family, preserve manual technician authority and test ordinary variants alongside many-to-one, layered and deliberately incorrect cases. Record the evidence needed for correction and stop release whenever a critical relationship or construction decision remains unresolved. AutoSew, PatternGSL, ContourCraft and DressAgent provide research mechanisms and benchmark questions, not local acceptance evidence.[S06][S12][S14][S18]

¶ 08 · 4 sources

S06S12S14S18

The resulting decision is deliberately conditional. A maker can adopt seam-prediction assistance as a diagnostic aid when its errors are visible, correctable and evaluated at the whole-garment boundary. It should not adopt the headline relation score as a proxy for manufacturing readiness. The evidence required to move from digital assistance to production release remains a complete specification, a technically reviewed construction method and the prescribed physical approval.

¶ 09

Check the record

The chapter keeps its sources within reach.

Every knot is a source this chapter cites; select one to read its record, or filter the register by grade. Publication dates and inherited-source limits stay explicit. Read the paper's full evidence summary.

6 sources · 37 citation marks on this pageMost cited: S12, 16 times

Grade AGrade BGrade CKnot size: citations on this page

All 6 records shown

c05-S06 · Grade B

Authors via arXiv; SIGGRAPH 2024

ContourCraft: Learning to Resolve Intersections in Neural Multi-Garment Simulations

However, handling collisions and intersections in neural simulations remains a largely unsolved problem.

2024-05-15. Register access date: 2026-10-30. Source provenance is supplied by the paper evidence register.

Open the recorded source ↗
Chapter source notes

S12 Authors via arXiv; WACV 2026. 2026-02-25.

S14 Authors via arXiv. 2026-06-23.

S19 National Institute of Standards and Technology. 2023-01-26.

S20 National Institute of Standards and Technology. 2024-07-26.

S06 Authors via arXiv; SIGGRAPH 2024. 2024-05-15.

S18 Authors via arXiv. 2026-10-11.

Keep the thread · chapter 05 of 14

Chapter 06 picks up the thread.

Move the shuttle along the rack to preview any chapter: its sections, exhibits and reading time. Draft web edition. This research is not investment, legal or tax advice; illustrative models are not measured factory results.

The paper's rack · 14 boltsBolt length: reading time

06Part II: Specifications require geometry, materials and fit

Fabric physics must be checked against the fabric being bought

Predicted material properties can guide a test, but a simulation must remain traceable to the actual material and its measurement basis.

  • 6.1A texture map does not describe mechanical behaviour
  • 6.4Material inference is a hypothesis that needs validation
  • 6.7Material assets need measurement provenance
  • 6.10Direction and fabric variation belong in the model assumptions
Reading time
26 min
Exhibits
4
Sections
7
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