A sample is where an idea is tested against reality
Drawings and specifications can describe a garment, but only a sample shows how it behaves: how the fabric drapes, where the seams sit, how the collar rolls and how the garment feels on a body. Sample development is the stage where those questions are answered while changes are still cheap.
This page explains what sample development involves, the types of sample you may see, how to review one properly, how many rounds to expect and how the approved sample becomes the reference for bulk. It is written for brands and buyers who want fewer surprises when the full order arrives.