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| Decision field | Open accessAAPN Member Sourcing DirectoryGlobalRemove | Open accessNMSU Pattern Alteration GuideUnited States · North AmericaRemove | Open accessApparel Grade-Rule & Size-Run Validation RecordGlobalRemove |
|---|---|---|---|
| Decision fit | |||
| Primary job | Source production | Find patterns & fit | Find patterns & fit |
| Area | Production | Patterns & fit | Patterns & fit |
| Best for | Finding component and service partners beyond cut-and-sew | Checking a common flat-pattern alteration method | Auditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidence |
| Know before using | It contains association members rather than the whole market; membership does not establish capacity, pricing, workmanship, certification, labor conditions, or project fit. | The guide's general womenswear diagrams and ease ranges are teaching examples, not an individual diagnosis, current commercial-pattern specification, or complete fitting course. A named symptom can have several causes, and alterations may affect adjoining seams, facings, collars, sleeves, balance, and style. Verify the method against the exact pattern and test the coordinated changes on a muslin. | The record does not create a production grade, supply universal increments or breakpoints, validate a CAD file or fit population, reproduce licensed standards, or replace qualified anthropometric, pattern, technical-design, fit, quality, accessibility, safety, statistical, and user-research review. |
| Practical access | |||
| For | Apparel brands | Makers | Apparel brands |
| Location or jurisdiction | Global | United States · North America | Global |
| Access | Open access | Open access | Open access |
| Format | Directory | Reference | Stitch Authority |
| Source type | Industry organization | Government guidance | Stitch Authority |
| Source and review | |||
| What the source establishes | AAPN states that its public directory can be searched by company, country, or category and spans factories, textiles, trim, logistics, services, and technology. | New Mexico State University's current Cooperative Extension Guide C-228 explains three alteration methods, folding out fullness, slashing and spreading or overlapping, and redrawing darts or seams. It provides illustrated bodice, sleeve, skirt, and trouser examples and tells readers to compare body measurements plus intended ease with the pattern while preserving grain, design lines, related-piece changes, and comfort ease. | The guide cites current ISO body-table, size-designation, and garment-measurement boundaries plus two peer-reviewed studies that tested the relationship between conventional grade rules, anthropometric evidence, and garment fit; it requires product-specific target deltas and validation instead of publishing universal increments. |
| Linked page reviewed | Jul 15, 2026 | Jul 21, 2026 | Jul 16, 2026 |
| Next review due | Jan 11, 2027 | Oct 19, 2026 | Jul 16, 2027 |
| Inspect | |||
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