metadata management in organisations final
TRANSCRIPT
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Managing Metadata for Geographic Information
Supervisor: Dr. S. GeertmanProfessor: Prof. Dr. Ir A. Bregt
Paul Brous
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1. Introduction
2. Methodology
3. Results & Discussion
4. Conclusions and recommendations
Contents
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Introduction
: “information describing spatial data sets and spatial data services and making it possible to discover, inventory and use them.”
Metadata is:
The European Commission (2007)
EN ISO 19115:2005, Geographic information - Metadata1
ISO/TS 19139:2007 defines Geographic MetaData XML (gmd) encoding, an XML Schema
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80% of the spatial datasets had no metadata,
18% of the spatial datasets had CEN metadata
2% of the spatial datasets had (some) CEN metadata
135 man years are required to produce metadata for the current spatial data sets (807.000 files x 0,25 uur/1500 uur.
Rijkswaterstaat South Holland
Van der Wal en Schram (2008)
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Introduction
Central Research Question:
What are the reasons why Dutch organisations fail to document their spatial data with appropriate metadata?
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Introduction
Humanware Dataware
Technoware Orgware
The four dimensions of a GIS (adapted from Traub, 1998)
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Introduction
Data quality
Adapted from Strong et al. (1997)
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Introduction
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Methodology
Methodology
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Methodology
Phase 1
Information analysis
Interviews
Main Topic
A select sample of Dutch GI organisations based on their use of geographic information
Phase 2
Online questionnaire
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Results
Results
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Results
0%
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Intrinsic DQ
Accessibility DQ
Contextual DQ
Representational DQ
Metadata qualities
Metadata production issues relating to Humanware
In agreement - Perspective
In agreement - Perception
In agreement - Attitude
In agreement - Competency
In agreement - Aw areness
Humanware
Sub-categories of issues relating to Humanware
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Results Dataware
0%
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Intrinsic DQ
Accessibility DQ
Contextual DQ
Representational DQ
Metadata qualities
Metadata production issues relating to Dataware
In agreement - Scope
In agreement - Emphasis
In agreement - Semantics
Sub-categories of metadata production issues relating to Dataware
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Results Technoware
Sub-categories of metadata production issues relating to Technoware
0%
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Metadata qualities
Metadata production issues relating to Technoware
In agreement - Accessibility
In agreement - Functionality
In agreement - Usability
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Results Orgware
Sub-categories of the metadata production issues relating to Orgware 0%
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Intrinsic DQ
Accessibility DQ
Contextual DQ
Representational DQ
Metadata qualities
Metadata production issues relating to Orgware
In agreement - Politics
In agreement - Policy
In agreement - Strategy
In agreement - Operations
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Results Metadata production issues in organisations
Relationship map to show the effects of each GIS dimension on the dimensions of metadata quality
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Conclusions and recommendations
Conclusions and Recommendations
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Conclusions and recommendations
A mindmap to demonstrate the relationships between the metadata production issues and the organisation
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Conclusions and Recommendations
What are the reasons why Dutch organisations fail to document their spatial data with appropriate metadata?
Conclusions
Recommendations
Issues relating to metadata production do occur in Dutch organisations.
Humanware Technoware
Dataware
The production of appropriate metadata for spatial data is a difficult, complicated process which requires a great deal of planning and expertise.
Organisations should be as clear as possible with regards to the choices made .
Orgware
Organisations should be aware of their production processes.
Organisations should be aware of the quality of their metadata.
Organisations should be aware of the needs of their personnel.
These issues impact the quality of the metadata being produced.
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Thank you!