Geodatabase: The ArcGIS Mechanism for Data Management

Sabata Mcatshulwa and Liezel Botha

Presentation Outline

Cartographic Representations

Relationship feature classes

Raster Data

Complex feature classes

Versioning and Distributed GDB

Patterns of an Enterprise GIS

Complete Integrated Systems

Data Management

Collect, organise &

exchange data

Planning & Analyses

Transform data in to actionable

information

Field Mobility

Get information into & out of the

field

Operational Awareness

Disseminate knowledge

where & when it is needed

Stakeholder Engagement

Get feedback and make informed decisions

ArcGIS Addresses common organizational needs

Presentation Outline

Cartographic Representations

Relationship feature classes

Raster Data

Complex feature classes

Versioning and Distributed GDB

Cartographic Representations

• For storing

� Complex symbology

� Rule-based

� In the geodatabase

Requires an ArcEditor or ArcInfo license

Presentation Outline

Cartographic Representations

Relationship feature classes

Raster Data

Complex feature classes

Versioning and Distributed GDB

Relationship feature classes

• Ensures Referential integrity

• Cardinality:

− one-to-one

− one-to-many

− many-to-many

• Rule based

Presentation Outline

Cartographic Representations

Relationship feature classes

Raster Data

Complex feature classes

Versioning and Distributed GDB

Raster Data

Raster Datasets

• Raster datasets can be:

− Individual raster datasets

− Mosaicked together

− Grouped into mosaic datasets

− Grouped into catalogs

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

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

Demonstration

Presentation Outline

Cartographic Representations

Relationship feature classes

Raster Data

Complex feature classes

Versioning and Distributed GDB

Complex feature classes

Topology

• Relationships between coincident features

• Ensures data integrity

• Rule based

− Constrain how features share geometry

Complex feature classes

• Align To Shape

• Replace Geometry Tool

• Align Edge Tool

• Topology Edit Trace Tool

• Reshape multiple edges at once

Topology – New 10.1 Tools

Complex feature classes

Geometric Networks

• 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

Demonstration

Presentation Outline

Cartographic Representations

Relationship feature classes

Raster Data

Complex feature classes

Versioning and Distributed GDB

Versioning and Distributed GDB

Versioning and Distributed GDB

Feature edit tracking

Editor

Tom

Bill

Joe

• name of the user who created it

• date and time it was created

• name of the user who edited it

• date and time it was last edited

Versioning and Distributed GDBWhat is a Version?

Versioning and Distributed GDB

Privileges Dialog

• See all privileges on a dataset

• Bulk grant and revoke to users and roles

Versioning and Distributed GDB

Scripting Administration

Versioning and Distributed GDB

Replication

Versioning and Distributed GDB

Provides the functionality to record and access

changes made to all or a subset of data in a

versioned geodatabase

Archiving

• 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?

Demonstration

Discussion