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Geodatabase: The ArcGIS Mechanism for Data Management
The document outlines the mechanisms of data management in ArcGIS, focusing on geodatabases and their features such as complex feature classes, raster data management, and versioning. It discusses the importance of cartographic representations, data integrity through relationships, and various tools for topology and geometric networks. The presentation emphasizes stakeholder engagement, data transformation into actionable information, and operational awareness for efficient field mobility and decision-making.
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Geodatabase: The ArcGIS Mechanism for Data Management
- 1. Geodatabase: The ArcGIS Mechanismfor Data Management Sabata Mcatshulwa and Liezel Botha
- 2. Presentation Outline Cartographic Representations Relationship feature classes Raster Data Complex feature classes Versioning and Distributed GDB
- 3. Patterns of anEnterprise GIS Data Management Collect, organise & exchange data Stakeholder Planning & Engagement Analyses Get feedback Transform data and make in to actionable informed information decisions Complete Integrated Systems Operational Awareness Field Mobility Disseminate Get information knowledge into & out of the where & when it field is needed ArcGIS Addresses common organizational needs
- 4. Presentation Outline Cartographic Representations Relationship feature classes Raster Data Complex feature classes Versioning and Distributed GDB
- 5. Cartographic Representations • Forstoring Complex symbology Rule-based In the geodatabase Requires an ArcEditor or ArcInfo license
- 6. Presentation Outline Cartographic Representations Relationship feature classes Raster Data Complex feature classes Versioning and Distributed GDB
- 7. Relationship feature classes • Ensures Referential integrity • Cardinality: − one-to-one − one-to-many − many-to-many • Rule based
- 8. Presentation Outline Cartographic Representations Relationship feature classes Raster Data Complex feature classes Versioning and Distributed GDB
- 9. Raster Data RasterDatasets • Raster datasets can be: − Individual raster datasets − Mosaicked together − Grouped into mosaic datasets − Grouped into catalogs
- 10. Raster Data Raster Catalog − Collection of raster datasets stored in geodatabase − A raster catalog is typically used to display adjacent fully overlapping, or partially overlapping raster datasets without having to mosaic them into one large raster dataset
- 11. Raster Data Mosaic Datasets •Store, manage, view and query small to vast collections of raster and image data • Dynamic Mosaicking • Optimized Data is stored as a catalog and viewed as a mosaicked image
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- 13. Presentation Outline Cartographic Representations Relationship feature classes Raster Data Complex feature classes Versioning and Distributed GDB
- 14. Complex feature classes Topology •Relationships between coincident features • Ensures data integrity • Rule based − Constrain how features share geometry
- 15. Complex feature classes Topology– New 10.1 Tools • Align To Shape • Replace Geometry Tool • Align Edge Tool • Topology Edit Trace Tool • Reshape multiple edges at once
- 16. Complex feature classes GeometricNetworks • Model common networks and infrastructures found in the real world • Examples: − Water distribution − Electrical lines − Gas pipelines − Telephone services − Rivers/Streams • Network Tracing − Upstream/downstream − Finding connected/disconnected features
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- 18. Presentation Outline Cartographic Representations Relationship feature classes Raster Data Complex feature classes Versioning and Distributed GDB
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- 20. Versioning and DistributedGDB Feature edit tracking Editor • name of the user who created it Tom • date and time it was created Bill Joe • name of the user who edited it • date and time it was last edited
- 21. Versioning and DistributedGDB What is a Version?
- 22. Versioning and DistributedGDB Privileges Dialog • See all privileges on a dataset • Bulk grant and revoke to users and roles
- 23. Versioning and DistributedGDB Scripting Administration
- 24. Versioning and DistributedGDB Replication
- 25. Versioning and DistributedGDB Archiving Provides the functionality to record and access changes made to all or a subset of data in a versioned geodatabase • What was the value for a specific attribute at a certain moment? • How has a particular feature or row changed through time? • How has a spatial area evolved over time?
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