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| Decision field | Free downloadSeamly2DGlobalRemove | Open accessAustralia Basic Patternmaking CompetencyAustralia · OceaniaRemove | Open accessSwatch-to-Area Yarn EstimatorGlobalRemove | Open accessPattern Grading & Size-Run Validation RecordGlobalRemove |
|---|---|---|---|---|
| Decision fit | ||||
| Primary job | Find patterns & fit | Find patterns & fit | Choose materials | Find patterns & fit |
| Also useful for | No additional job recorded | No additional job recorded | No additional job recorded | No additional job recorded |
| Area | Patterns & fit | Patterns & fit | Yarn | Patterns & fit |
| Best for | Digital pattern drafting | Scoping training, hiring, assessment, or evidence requirements for basic textile-product pattern development and testing in Australia | Documenting a bounded sample-to-area yarn calculation when the equivalent area is already known and genuinely comparable with the sample | Auditing inherited grade rules or controlling a new multi-size pattern release from approved targets through sample evidence |
| Know before using | 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. | This is a competency and assessment reference, not an instructional course, pattern file, qualification by reading, provider recommendation, professional license, or proof that a person can perform the work. The route does not establish enrollment availability, teaching quality, fees, support, recognition outside Australia, or product-specific fit. Confirm the current unit status, packaging rules, prerequisites, registered provider, assessment conditions, local requirements, and actual evidence before relying on it. | The worksheet does not establish that a sample represents a project, derive the area of shaped pieces, account for construction or openings, prescribe reserve, supply typical project quantities, round to packages, verify label values, guarantee required quantity, check dye-lot supply, or replace a tested pattern amount. Yarn, tool, maker, strand count, stitch or texture, density, treatment, finishing, planned area, and supply decisions remain project-specific. | 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 | Both | Both | Makers | Apparel brands |
| Location or jurisdiction | Global | Australia · Oceania | Global | Global |
| Access | Free download | Open access | Open access | Open access |
| Format | Software | Reference | Stitch Authority | Stitch Authority |
| Source type | Open-source project | Official registry | Stitch Authority | Stitch Authority |
| Source and review | ||||
| What the source establishes | 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. | Australia's National Training Register publishes current unit MSTAT3002, Develop patterns using basic patternmaking principles. The release document describes interpreting textile-product design specifications, considering fabric performance, selecting tools and equipment, developing patterns, testing the result, and making alterations. Release 1 was generated December 22, 2022 and merged two earlier units. Current Australian apparel and live-production qualifications list MSTAT3002, while the current diploma also exposes advanced individual-fit, alteration, and fit-model units. | The worksheet performs visible proportional arithmetic on user-entered sample dimensions, sample yarn length or weight-derived length, equivalent area, and optional reserve. Craft Yarn Council pattern-writing guidance says yarn amounts and package counts should be recorded in instructions, and its consumer guidance ties project instructions to a stated yarn amount and representative gauge; those sources do not establish a universal sample-to-area method, project range, or reserve. NIST defines 1 yard as exactly 0.9144 metre for the secondary unit display. | 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 21, 2026 | Jul 16, 2026 | Jul 28, 2026 | Jul 27, 2026 |
| Next review due | Jan 17, 2027 | Oct 14, 2026 | Jul 28, 2027 | Jul 27, 2027 |
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