Professional Application Development

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Transcript Professional Application Development 

SDI from a technological
perspective: Metadata
Arnold Bregt
Components
Technology
People
Policies
Spatial
Data
Standards
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Experiment
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Stsul.dat
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Depth to the pyritic layer
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Why describe spatial datasets?
Manage
Search
Exchange
Use
(storage and change)
(content global )
(format )
(content details, quality)
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Target groups
Personal
(storage)
Own organisation
(storage and content)
Other organisations (content, format, quality,
contact person)
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Extent description
Target groups
Functions
Personal
Manage Search Exchange Useuse
+
+
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Own organisation
++
Other organisation
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++
++
+++
+++
+++
How to describe ?

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
Personal standard
Organisational standard
(inter)national standards
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Exercise Draft your own Metadata Standard
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Draft your own Metadata Standard
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International standards



America
Europe
ISO
(FGDC)
(CEN)
(ISO19115)
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Metadata Standards

There are many
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Standards for Meta-data
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Metadata Standards
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But the leading one is ISO 19115
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INSPIRE
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Metadata INSPIRE
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Metadata INSPIRE
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Metadata Standards
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Profiles
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Metadata implemantation
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Profiles from ISO 19115
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Implementation schema in XML (ISO 19139)
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Software support (e.g. Geocat in Bennekom)
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Latest version
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ISO 19115-1: 2014
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Evolution of standards
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Conclusions
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Describing spatial datasets with meta-data is
essential to keep the data accessible in the
future.

For (inter) national exchange the use of a
standard is a must.

A problem with describing metadata is that the
personal requirements are less than the
organisational requirements.
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Questions
Thank you for your attention!
XML

XML = Extensible Markup Language
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Standard of W3C

Both machine and human readable

Store data and exchange over the internet
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Example
<?xml version="1.0" encoding="UTF-8"?>
- <note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>
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
XML presentation
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XML is everywhere!

Word documents

Meta data (geonetwork)

Basis for GML, KML, CityGML , etc
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