Chapter 3. Data Integration and Information Aggregation patterns 63
Figure 3-2 Data Integration and Information Aggregation patterns
3.2.1 Data Integration application patterns
Figure 3-2 shows that Data Integration has three Application patterns as follows:
1. Federation
Federation is a fundamental Application pattern that can be used in a number
of ways, typically in support of another pattern. Its basis is a federated query
that hides the fact that its target data may be local, remote, or fully distributed.
2. Population
Population involves data (or information) being copied and, if necessary,
transformed, from one place to another "off-line", in advance of when it is
required by a user or application. Population is a one-way process where one
data store is the source of the process and the other the target.
3. Two-way Synchronization
Two-way Synchronization has in common with Population the activity of data
(or information) being copied and, if necessary, transformed, from one place
LEGEND:
Data sources and targets are represented by disks
Pale blue box represents a Business or Integration pattern
.
Beveled box represents an Application pattern.
Arrows show data movement.
Data Integration
Information
Aggregation
Data
store
Presentation
Two-way
Synchronization
Data
store
Presentation
User
Information
Access
Population
Population
Federation
Federation
Federation
Federation
Federation
Self Service
Agent
Application
Data
store
Data Integration
Information
Aggregation
Data
store
PresentationPresentation
Two-way
Synchronization
Two-way
Synchronization
Data
store
PresentationPresentation
User
Information
Access
User
Information
Access
PopulationPopulation
PopulationPopulation
FederationFederation
FederationFederation
FederationFederation
FederationFederation
FederationFederation
Self Service
Agent
Application
Data
store
Application
Data
store
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