This shows the stages at which the parts of these guidelines will be found useful. It also shows how people fit into this sequence. Some people may fulfil more than one of these roles. In the diagram these roles are shown in unfilled ellipses. Actions such as specifying requirements for data are shown in rectangles.
Informative comments appear in boxes with rounded corners.
The three main Parts in these guidelines appear associated with individual actions, and are shown in shaded ellipses. Within this document there is also a Glossary, a list of Contacts and several Examples of the use of these guidelines. These guidelines have been developed on behalf of the AGI Data Quality Working Party by David Parker, Hugh Buchanan, Crispin Hoult, George Taylor and Mike Coombes of the University of Newcastle upon Tyne. The work has been sponsored by National Joint Utilities Group and Bristol Water Company.