Medida base: Não precisa das outras medidas para funcionar.

Medida derivada: Precisa das outras medidas para demonstrar sua importância.

Tem o propósito de "to define and/or design an initial set of QME ... "

1)list all the base measures set out in 9126 to 2, 3 and 4 and identify if the measure is a derived measure i.e. a composite or a base measure.

2) Divide each measure found in step (1 ) in base elements (must be reduced to the simplest expression) and identify the contexts of use.

3) Identify all common measures found in step (2), and distinguish each measure according to its contexts of use.

4)Each base measure found in step (3) must pass the criteria of measure element and measurement method defined in ISO/lEe 15939.

5) Testing of each base measure found in step (4) with published data from past or existing project.

6)Verification and validation of the accuracYI repeatability and repetitivity of each baseline measurement.