TS ISO 3534-3

TS ISO 3534-3 is a terminology standard that defines the terms and symbols used in the design of experiments. Design of experiments is a statistical approach for arranging variables in a controlled way so that the effects of a process, product, or method can be understood more clearly; for that reason, shared definitions matter in both research and industrial practice.

How the design-of-experiments vocabulary is organised

The standard covers definitions for terms used in the field of design of experiments and may be used when preparing other standards. In practice, a vocabulary standard like this helps keep core statistical concepts consistent, such as factor, level, replication, blocking, and interaction. Its purpose is not to prescribe a new experimental method, but to organise and standardise the language already used in the discipline.

Design of experiments aims to separate the effects of one or more factors on a response variable. This is important when planning comparative tests, interpreting results, and managing experimental uncertainty in a more robust way. TS ISO 3534-3 provides the common terminology foundation for that wider field; it should not be read as a step-by-step experimental procedure or a methods standard in its own right.

This TSE edition is withdrawn, but it remains relevant as a historical reference for standardised terminology in statistics and experimental planning.