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| Decision field | Open accessApparel Measurement Tolerance Setting RecordGlobalRemove | Free + paidPattern TestersGlobalRemove | Free accountRavelryGlobalRemove |
|---|---|---|---|
| Decision fit | |||
| Primary job | Source production | Find patterns & fit | Choose materials |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Production | Patterns & fit | Yarn |
| Best for | Turning an inherited or proposed garment tolerance into a controlled POM method, capability study, decision boundary, inspection rule, and change record | Coordinating an independent sewing-pattern test | Broad pattern, yarn, and project research |
| Know before using | The record does not supply universal POM values, validate fit across a population, prove process capability, choose a statistical study or sampling plan, reproduce licensed standards, or replace qualified technical, fit, quality, statistical, safety, compliance, and legal 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. | An account is required and community, publisher, designer, shop, yarn, and project records can vary in currency and accuracy. Search results, ratings, favorites, and project examples do not establish pattern accuracy, yarn availability, seller reliability, fit, gauge, or project suitability. Confirm current files, errata, license, purchase and refund terms, measurements, yarn details, and shop information with the responsible source. |
| Practical access | |||
| For | Apparel brands | Apparel brands | Makers |
| Location or jurisdiction | Global | Global | Global |
| Access | Open access | Free + paid | Free account |
| Format | Stitch Authority | Software | Community |
| Source type | Stitch Authority | First-party platform | Community database |
| Account, payment, and exit | |||
| Access scope | Not yet reviewed at this level. | Not yet reviewed at this level. | Knitter or crocheter researching patterns and yarns while keeping notebook records. |
| Before an account | Not yet reviewed at this level. | Not yet reviewed at this level. | Official about, login, and signup pages are public, but the useful database, notebook, and community route requires sign-in. |
| Free-account boundary | Not yet reviewed at this level. | Not yet reviewed at this level. | A free account requires a valid email signup link and enables the database, notebook, directories, groups, and forums. |
| Payment boundary | Not yet reviewed at this level. | Not yet reviewed at this level. | The core platform account is free. Individual patterns and other marketplace items may have separate provider-set prices; those purchases are not a user subscription. |
| Cancellation or exit | Not yet reviewed at this level. | Not yet reviewed at this level. | The checked public about, login, and signup pages do not establish cancellation, deletion, or post-exit access. Verify the current in-account help before contributing records. |
| Saved work and data | Not yet reviewed at this level. | Not yet reviewed at this level. | The personal notebook can hold projects, stash, tools, and a pattern library, but the checked public pages do not establish a complete export route. Keep source files and critical records locally. |
| Source and review | |||
| What the source establishes | The guide cites current ISO, AATCC, and NIST sources for body and garment measurement boundaries, textile conditioning, dimensional-change testing, repeatability and reproducibility, and AQL-indexed sampling, while requiring the live product owner to set rather than inherit numerical tolerances. | 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. | Ravelry's official description identifies a user-driven database of knitting and crochet patterns and yarns, searchable directories for designers, pattern sources, local yarn stores and yarn brands, and a personal notebook for projects, stash, tools, library items, queues, and favorites. Community members and volunteer editors add and maintain the database records. |
| Linked page reviewed | Jul 15, 2026 | Jul 21, 2026 | Jul 28, 2026 |
| Next review due | Jul 15, 2027 | Jan 17, 2027 | Jan 24, 2027 |
| Inspect | |||
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