Each determination is made against a specific dataset, at a fixed point in time, for a defined use.

Every determination is bound to:

• a named dataset

• a fixed extract date

• a defined use

We examine whether the dataset holds under the stated use.

This includes:

• structural integrity

• completeness

• field alignment

• behaviour under use

The output is explicit:

• Suitable  

• Not suitable  

• Suitable only if conditions are met

Where conditions apply, they are stated and must hold for the determination to remain valid.

Determinations are not permanent.

They are invalidated when the underlying inputs change.

This includes:

• new or modified data

• schema changes

• field remapping

• changes to extraction logic

If inputs change, the determination no longer applies.

Each determination applies only to the dataset, date, and use defined at the point of issue.