OS MasterMap - Technical Specification
This is an official Ordnance Survey document relating to OS MasterMap in its raw format as a database product. Some of the technical detail does not apply to certain output formats, most notably 'print only' formats.
Part 2 – Technical specification
This part of the user guide has been designed to help you understand the information contained in OS MasterMap, as well as providing detailed technical information and the data format specification.
