of all the relevant data which exists at the start of the project.

The objectives of data prototyping are to produce:
* A set of data cleansing and transformation rules which have been seen to produce data which is all fit for purpose.
* A dataset which is the result of those rules being applied to an instance of the relevant raw (source) data.To achieve this, a data architect uses a graphical interface to interactively develop and execute transformation and cleansing rules using raw data. The resultant data is then evaluated