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Researcher Challenges: Create Maps for the 21st Century. Werner Kuhn Institute for Geoinformatics University of Muenster. Today. GIS Specialists. Maps for Users. Tomorrow. Models for Users. Thesis. Today’s GI and GIS models misbehave. What does this mean? (1).

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researcher challenges create maps for the 21st century

Researcher Challenges:Create Maps for the 21st Century

Werner Kuhn

Institute for Geoinformatics

University of Muenster

slide2

Today

GIS Specialists

Maps for Users

slide3

Tomorrow

Models for Users

thesis
Thesis

Today’s GI and GIS models misbehave

EC-GIS Workshop Stresa

what does this mean 1
What does this mean? (1)
  • Interaction models imitate behaviour of paper maps

overlay, buffering

  • Data models map storage behaviour to applications

vector, raster

  • Behaviour of geometry models is too primitive

crisp boundaries, simple graphs, single geometries, no process models

  • Behaviourof features is implemented in word processors

featurecatalogues are on bookshelves rather than in systems

EC-GIS Workshop Stresa

what does this mean 2
What does this mean? (2)
  • Application models are not interoperable with GIS

analysis and visualisation occurs outside GIS

  • Data transfer models contain no behaviour at all

exchange formats strip operations away from data

  • Economic models reflect behaviour of producers rather than users

cost-based rather than value-based pricing

EC-GIS Workshop Stresa

the general challenge
The General Challenge

Produce models for GI and GIS based on behaviour-preserving maps

EC-GIS Workshop Stresa

structure preserving maps morphisms
Structure-preserving maps (morphisms)

Changes in the world

modelling

modelling

Operations in the model

EC-GIS Workshop Stresa

characteristics of such maps
Characteristics of such maps
  • They preserve structure (= behaviour)
  • can be optimised for human and machine resources
  • can be combined to achieve complex from simple maps
  • can be formalised as functions (morphisms)
  • can be prototyped in functional languages.

EC-GIS Workshop Stresa

examples from 4 domains
Examples from 4 domains

1. Interaction

2. Ontologies

3. Distributed data models

4. Semantic interoperability

EC-GIS Workshop Stresa

example intuitive zoom and pan
Example: Intuitive zoom and pan

Today’s situation:

10% of the time in routine tasks (e.g., digitizing) is spent in unnecessary and disorienting manipulations for zoom and pan operations

Challenge:

Map structure of visual experience to human-computer interaction

visual experience

interaction

EC-GIS Workshop Stresa

example feature catalogues
Example: Feature Catalogues

Today’s situation:

Feature catalogues are often derived from existing data collections. This fails to support user needs and causes unnecessary update costs.

Challenge:

Map structure of work flows to ontologies

User decisions

Ontologies

EC-GIS Workshop Stresa

example hierarchies
Example: Hierarchies

Today’s situation:

Complex conceptual data models get mapped to simple object-relational databases in application software.

Challenge:

Map common structure of applications through middleware

Hierarchies

ORDB+mediator

EC-GIS Workshop Stresa

example semantics of road data
Example: Semantics of road data

Today’s situation:

Navigation data like GDF and NMA data lead to conflicting interpretations of where one can drive.

Challenge:

Map polymorphic driving behaviour to mobile services.

Polymorphism

Interoperable Services

EC-GIS Workshop Stresa

conclusions
Conclusions
  • Today’s GI and GIS models lack behaviour
  • This makes them hard to use
  • The general research challenge:

Define and prototype structure-preserving maps

  • Some instances:
    • interaction models (metaphors)
    • ontologies and data models
    • service models
  • Consequences for modelling procedure.

EC-GIS Workshop Stresa