Technical Guides
| Ref | Title | Author | Description | |
|---|---|---|---|---|
| DNF0001 | Overview Document | Les Rackham | This document provides an overview to the technical architecture of the Digital National Framework (DNF) and a guide to the documentation and services being developed in support of the technical architecture. | Download Table of Contents |
| DNF0004 | Association Model | Eric Malcomson | This document lays out the logical model by which applications associate with geographic objects in a base reference layer using cross referencing techniques. More complex forms of association are also included in the model, for example, where an application refers to a geographic object within an application reference layer, which in turn is associated with geographic objects in the base reference layer. | Download Table of Contents |
| DNF0011 | Unique Object Identifiers | Jonathan Simmons | This document is intended to outline the fundamentals of dealing with nationally unique identifiers within the Digital National Framework (DNF) and to provide both rules and recommendations for their use, storage and allocation. | Download Table of Contents |
| DNF0020 | Coordinate Reference Systems | Keith Murray | This document outlines the different spatial coordinate systems that are currently in common use in the United Kingdom, the transformations between these systems and how they support the Digital National Framework [DNF]. | Download Table of Contents |
| DNF0054 | Technical Guide to Feature Cataloguing | James Rapaport | This document provides technical guidance on the creation of feature catalogues and the requirements for creating a feature catalogue conforming to DNF principles. | Download Table of Contents |