Mass-produced garments are made in large quantities for a broad consumer market, not for specific individuals. Therefore, they need to be based on measurements that represent typical body sizes within a target population. Let's analyze the options:
- (a) Designer's own measurements: This would result in garments fitting only the designer or people with similar measurements, not suitable for mass production.
- (b) Measurements of models: Fit models are used during garment development to check the fit and appearance of prototypes. While model measurements are important for ensuring the garment drapes and fits well on a representative body shape for the target size, the final production sizing is based on broader population data, not just one model's specific measurements.
- (c) Individual measurements: This refers to custom-made or bespoke tailoring, where garments are made to fit a specific person's measurements. This is the opposite of mass production.
- (d) Standard size chart: Mass production relies on standard size charts (or sizing systems). These charts provide a set of body measurements (e.g., chest, waist, hip, height) that define different garment sizes (e.g., S, M, L, XL, or numerical sizes like 8, 10, 12). These standard sizes are developed based on anthropometric surveys of the target population and aim to fit a range of people within each size category. Patterns for mass production are graded (scaled up or down) from a base size according to these standard size charts.
Therefore, mass-produced garments use measurements derived from
Standard size charts. \[ \boxed{\text{Standard size chart}} \]