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| Decision field | Open accessApparel Grade-Rule & Size-Run Validation RecordGlobalRemove | PaidTUKAcadGlobalRemove |
|---|---|---|
| Decision fit | ||
| Primary job | Find patterns & fit | Find patterns & fit |
| Area | Patterns & fit | Patterns & fit |
| Best for | Auditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidence | 2D patternmaking and grading with public plan tiers |
| 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. | TUKAcad is Windows software; the official Mac route requires a separate virtual Windows environment. Pattern-piece, graded-size, marker, import and export, digitizing, and production-output capabilities vary materially by paid tier. A CAD file or marker report does not prove fit or factory readiness, so verify formats, grade rules, seam and production data, hardware, training, and downstream compatibility before subscribing. |
| Practical access | ||
| For | Apparel brands | Both |
| Location or jurisdiction | Global | Global |
| Access | Open access | Paid |
| Format | Stitch Authority | Software |
| Source type | Stitch Authority | First-party platform |
| 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. | Tukatech's current TUKAcad page publishes monthly Learning and Professional editions for digital patternmaking and grading, with a higher tier adding marker making, data import and export, digitizing, cut-data optimization, and yield reports. It discloses plan limits on pattern pieces, graded sizes, and marker dimensions, plus built-in help, block templates, a trial, Windows requirements, and the Windows-on-Mac route. |
| Linked page reviewed | Jul 16, 2026 | Jul 21, 2026 |
| Next review due | Jul 16, 2027 | Jan 17, 2027 |
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