Technical Guides

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.

DownloadDownload

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.

DownloadDownload

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.

DownloadDownload

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].

DownloadDownload

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.

DownloadDownload

Other news

  • Linked Data Workshop - Agenda available - Registration open

    Spaces are limited - first come first served ... read more

  • Getting Started with Linked Data

    Workshop Announced ... read more

  • Coming up this week - DNF Expert Group Meeting

    Plans and outline for EG#21 meeting, July 1st ... read more

  • BCS reports on recent geospatial event

    "Time, Space and Meaning - a seminar on Geospatial semantics" ... read more

Sponsors 2010