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| Decision field | Open accessApparel Grade-Rule & Size-Run Validation RecordGlobalRemove | Free + paidPattern TestersGlobalRemove | Open accessEU Personal Protective Equipment RegulationEuropean UnionRemove | Free downloadSeamly2DGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Find patterns & fit | Find patterns & fit | Check standards | Find patterns & fit |
| Area | Patterns & fit | Patterns & fit | Standards | Patterns & fit |
| Best for | Auditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidence | Coordinating an independent sewing-pattern test | Starting an EU/EEA PPE scope and conformity review with the current law, Commission guidance, harmonised-standard publications, and official notified-body route | Digital pattern drafting |
| Know before using | 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. | The interface and plan description do not prove tester reach, completion, feedback quality, fit validity, export quality, uptime, support, or suitability for an established release process. Measurements and photos can be sensitive personal data. Run a non-critical pilot, review the current privacy and service terms, define consent and photo rights, test exports and deletion, and keep pattern approval and release responsibility with the designer. | This is a legal and guidance starting point, not a product classification, risk assessment, standard selection, technical file, test plan, notified-body appointment, EU type-examination certificate, declaration, CE-mark approval, or legal opinion. Confirm the actual intended and foreseeable use, risk category, current law, applicable essential requirements, conformity route, economic-operator duties, destination rules, and evidence before placing PPE on the market. | Patternmaking knowledge, controlled measurement files, production conventions, and sewn fit testing are still required. The software does not validate body measurements, ease, balance, grading rules, fabric behavior, construction, or product fit. The project currently labels its user wiki manual as needing updates, so confirm current commands and file behavior against the installed release and active support channels. |
| Practical access | ||||
| For | Apparel brands | Apparel brands | Apparel brands | Both |
| Location or jurisdiction | Global | Global | European Union | Global |
| Access | Open access | Free + paid | Open access | Free download |
| Format | Stitch Authority | Software | Reference | Software |
| Source type | Stitch Authority | First-party platform | Government guidance | Open-source project |
| Source and review | ||||
| What the source establishes | 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. | Pattern Testers currently offers application intake, tester selection, feedback, photos, approvals, issue tracking, revisions, a reusable tester directory, and release deadlines. The public pricing page shows a limited free plan and paid Pro and Business tiers. Its June 2026 privacy policy lists names, email addresses, measurements, photos, feedback, application history, and assignments among the data processed. | The Commission page says Regulation (EU) 2016/425 covers the design, manufacture, and marketing of PPE and connects manufacturers to the essential health and safety requirements, current PPE guidelines, harmonised-standard publications, and NANDO notified-body list. The linked consolidated legal text was current to May 29, 2026 at the checked date. | The maintained Seamly2D repository identifies the application as GPLv3+ open-source patternmaking software for Windows, macOS, and Linux. It reads multi-size measurement files for standardized sizes and individual measurement files for custom-fit work, publishes downloadable builds and releases, and links an active website and user forum. |
| Linked page reviewed | Jul 16, 2026 | Jul 21, 2026 | Jul 16, 2026 | Jul 21, 2026 |
| Next review due | Jul 16, 2027 | Jan 17, 2027 | Oct 14, 2026 | Jan 17, 2027 |
| Inspect | ||||
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