Geo-communication and GSDI Aalborg University Lars Brodersen 2007 Paradigm, ontology and...

Geo-communication and GSDI

Aalborg University Lars Brodersen 2007

Paradigm, ontology and epistemology- an introduction

Geo-communication and GeoSpatial Data Infrastructure (GSDI)

Lars BrodersenAalborg University

www.land.aau.dk/~larswww.geokommunikation.dk

Outline:

- what is the problem, if any

- geo-spatial data infrastructure

- geo-communication

- information design

paradigmontologyepistemology

Geo-communication - a paradigm

what is the problem, if any

Location Based Services

Geo-communication

the concept of communication

Longitudinal section

the concept of communication (example)

GSDISpatial Data Infrastructure

ontology and GSDI

Until approx. 1990

ontology and GSDI

meaning

meaningmeaning

meaning

ontology and GSDI

Cross section

ontology and GSDI

The active components in SDI:

• International Organizations like UN, NATO etc.

• Governments

• National Mapping Agencies

• Standardization bodies

• Custodians for various services

Active and passive components in GSDI

The passive components in Geospatial Infrastructure:

• Legislation

• Collaboration (MoUs)

• Standards

• Models

• Specifications

• Services

• Geo-information (data)

(here presented in their mutual dependency)

Legislation is …

• made by the active components

• enacting the framework for the deeper structures of geo-communication

• setting the areas of responsibility

1. Legislation

2. Collaboration (MoUs)

3. Standards

4. Models

5. Specifications

6. Services

7. Geo-information (data)

• Within the framework of legislation operational partnerships must be established.

• MoUs express intentions

• Setting the area(s) of interest

• MoUs must cover all areas of interest

• Collaboration must cover agreements upon sharing information over services and registries

Collaboration (MoUs)

1. Legislation

3. Standards

4. Models

5. Specifications

6. Services

Standards

Collaborations are policy statements (position paper). MoUs do not say anything about the work items.

Standards are a kind of agreement on 'What are we going to work on? How do we define our activities?'

Standards are general. Therefore they can be used for several concrete projects.Specifications are concrete, and are valid for one project.

1. Legislation

3. Standards

4. Models

5. Specifications

6. Services

Models

Models describe, how given standards have to be used for a certain project. Models bridge the gap between standards and specifications.

Value Model- Identification of content

Business process engineering: - Information and resource flow - Requirements driven service development

System Use Case:- Application schemas- (General) Feature models

1. Legislation

3. Standards

4. Models

5. Specifications

6. Services

• Specifications define what should be done in a given, concrete project according to a certain standard

• Specifications contain rules for action (behavior) for a given project

• Specifications define the content (both system and information) for at given project

Specifications

1. Legislation

3. Standards

4. Models

5. Specifications

6. Services

1. Legislation

3. Standards

4. Models

5. Specifications

6. Services

Services

Services are the concrete, practical set-up of the passive components (no. 1 to 5).

All passive components no. 1 to 5 can all be carried out on a piece of paper; nothing practical has happened until then. Services establish the technology, i.e. software, hardware, user-interfaces etc.

Metadata and information

- Metadata and information are the 'fuel' for the machinery (the services) once these have been created.

- Metadata and information are not technology!

- Metadata and information are the actual, practical, concrete result of a given production, which has been carried out in accordance with the characteristics of the services, with the specifications, with the models, with the standards, with the MoUs and in accordance with the legislation.

1. Legislation

3. Standards

4. Models

5. Specifications

6. Services

Cross section

ontology and GSDI

Information design

ontology and information design

- twelve good colours

NOTHING !

10.000

25.000

50.000

100.000

200.000

500.000

1.000.000

2.000.000

twelve good

coloursscales lines

Does it make sense to say:

”I need a building of 188 m2”

Answer:

What sort of building do you need?

(and the answer to that question depends entirely on the usage)

Firstness

Thirdness

Secondness

Geo-communication bridges the gap between reality and action

Geo-communication and GSDI Aalborg University Lars Brodersen 2007 Paradigm, ontology and...

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