The Digital National Framework of Great Britain GSDI 6 Conference - From Global to local September 16-19th 2002 BUDAPEST, HUNGARY.

The Digital National Framework of Great Britain Andrew Trigg

Head of Technology, Ordnance Survey

[email protected]

GSDI 6 Conference - From Global to localGSDI 6 Conference - From Global to local

September 16-19th 2002

BUDAPEST, HUNGARY

GSDI 6 Conference - From Global to local


BUDAPEST, HUNGARYwww.ordnancesurvey.co.uk

Current situation in Great Britain• Organisations horizons are largely

their own

• Data is often isolated

• Too few examples of data linking & data sharing

• Duplication

• Few definitive datasets

• Limited success with the National initiatives, such as NGDF (now dissolved) etc

• Customers have to do too much work on data integration




Power of location• Location is an essential component of

most information [80%]

• Location underpins important government activity - this impacts upon the citizen e.g.:

• buying a house

• choosing a school

• travelling to work

• emergencies

• Location information (Ordnance Survey products and services) underpins £100 billion of national GDP [OXERA report 1999]

(see http://ordnancesurvey.co.uk)

http://ordnancesurvey.co.uk/




Implications for the future • capture once – use many times•data quality issues (all kinds)

• Currency• Consistency• Completeness• Accuracy

• enable data sharing• harmonisation within nations & beyond

• across government• across all sectors• across large regions (e.g. INSPIRE across Europe)

• need for a pragmatic approach to standards• needs to fit the “national identity”• someone has to take responsibility




A National Spatial Data Infrastructure for Great Britain• Widely recognised that a successful NSDI has to play a

leading role in:• Creating Standards;• Improving Access to, and sharing of data and;• Creating a framework of reference data – a Geospatial Data

Framework

• The Digital National Framework is providing each of these within Great Britain

The Digital National Framework - Standards




Defin

itiv

e

The Digital National Framework

The Digital National Framework is providing a new standard for

national georeferencing frameworks, defining:

• Direct and indirect reference systems (coordinates & identifiers)

• Reference data (the base geography that links users data)

• Delivery formats (Geography Mark-up Language – GML)

• Quality

• Metadata

• Linking application data with reference data (data sharing)

• Glossary

Several components developed in conjunction

with:-

The Digital National Framework - Access




• New customer websites• Providing customer specific and

generic information• Access to account information and

product holdings• Ability to order and receive OS

MasterMap data online• 50 individuals across 16

organisations have customised Ordnance Survey websites

• Update supplied as change only information allows intelligent application of data

Access to data

The Digital National Framework – Geospatial Data Framework




OS MasterMapTM

Unique identifier (TOID)

0409 2000 1706 1951

Topographic Layer (9 themes)

400+ million features

truly seamless database

updated daily

released November 2001 - online

delivered only in GML




IS THERE A CONNECTION?Joining up x-organisational data - by TOID

Council tax benefit

Education

CensusFire records

Address

(linked to bldg TOID)Building (TOID)

Housing Stock

(condition)

All the events are explicitly cross referenced by the connections to the TOID (which also has

coordinates)

Defin

itiv

e




Address, Land & Property Layer - aim

Property Extents - indicative for Ownership (Title No)

Extents - indicative for Occupancy (UPRN)

TOIDs, UPRNs & Title nos 1001203348 488383 000000128282

1001203348488385 LA 12345

Mapping

Given one of the above - we can link to the remainder: connectivity

PostcodesMA13 7RA

Addresses (PAF, A-P, NLPG) - (georeferenced including non postal addresses)

12 Stuart Street

MANCHESTER

M13 7RA




PAF

Data conflation & organisational process re-engineering

OS MasterMap. Address, Land & Property Layer




Financing the reference data

In Great Britain (Ordnance Survey)

• User pays

• Revenue = further investment = new and higher quality data & services

• Partners – applications experts, joint input, joint rewards

•Customer driven

•Supports sustainable evolution & minimises financial dependence on government

•Ensures Ordnance Survey is business focussed

•Built on two decades of experience




Conclusions

• An SDI is key in joining up Government and business information

• SDI must be driven by customer/user/citizen needs and take into account different business models of participants

• Development should be step by step - towards a long term vision

• The Digital National Framework is providing an SDI through pragmatic implementation of standards, access mechanisms and a comprehensive geospatial data framework

Contact for further information

Customer HelpLineOrdnance Survey

Romsey RoadSOUTHAMPTONUnited Kingdom

SO16 4GU

Phone: 08456 05 05 05Fax: 023 8079 2615

Email: [email protected] site: www.ordnancesurvey.co.uk

www.ordnancesurvey.co.uk

The Digital National Framework of Great Britain GSDI 6 Conference - From Global to local September 16-19th 2002 BUDAPEST, HUNGARY.

Documents

framework of reference

identifiersreference

examples of data

data andcreating

national initiatives

national identity

data sharing harmonisation

xorganisational data