Overview
ISO/TS 3736-1:2022 - "Digital fitting - Service process - Part 1: Ready-to-wear clothing online and offline" defines a service-process framework for delivering digital fitting and size-recommendation services using a virtual human body and virtual garments. It is guidance for platform service providers, online/offline retailers and 3D shopping platform developers on how to set up end-to-end ready-to-wear shopping services that include avatar creation, virtual garment simulation and presentation to customers. The specification explicitly does not prescribe software functions, algorithms or commercialization models.
Key topics and requirements
- Service process flow: Preparation (database of virtual bodies and garment data) → Customer visit (online or offline) → Create/retrieve virtual human body → Select item → Digital fitting or size recommendation → Evaluate fit → Purchase decision.
- Virtual human body models:
- Virtual clone: created by 3D body scanning (measurement equipment).
- Virtual twin: created from body dimensions (height, bust, chest, waist, hip, inside leg, etc. - per ISO 8559‑1 measurement conventions).
- Option to select and modify representative body types from a database.
- Digital fitting outputs: qualitative/quantitative evaluation of fit using garment balance, gaps between body and garment, cross-sections, heat maps or surface wrinkle indicators (conceptual outputs; simulation algorithms not specified).
- Equipment and UX elements: measurement equipment (3D scanners, smart tape), display devices (smart mirrors, tablets, mobile phones, PCs) are referenced as optional but typical components.
- Data management: platform databases should store virtual human bodies, virtual garment characteristics and size data to support retrieval and repeat visits.
Applications and who uses it
- Online retailers and marketplaces: implement size recommendation and virtual try-on to reduce returns and improve conversion.
- Brick-and-mortar stores: deploy virtual mirrors or kiosks for in-store digital fitting experiences.
- 3D shopping platform developers & SaaS vendors: design service workflows and data schemas that align with the ISO process model.
- Apparel brands and product teams: integrate virtual garment data and size tables to present consistent fit guidance.
- Measurement equipment vendors and UX designers: ensure capture workflows and display devices fit the described process.
Practical benefits include improved size accuracy, fewer returns, faster purchase decisions and a consistent omnichannel customer experience.
Related standards
Keywords: ISO/TS 3736-1:2022, digital fitting, virtual human body, virtual garment, ready-to-wear, size recommendation, 3D shopping platform, virtual try-on.