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PDS Architecture
{{#eclipseproject:technology.higgins|eclipse_custom_style.css}} This section describes the attribute and data related services, java frameworks and abstract data models that are used by many of the upper layers of Higgins solutions, services and applications.
Attribute Service
New for Higgins 1.1, we're working on an network attribute web service called the Attribute Service. The initial protocol supported will be XDI with others to follow. See Higgins_1.1_Plan#Attribute_Service_1.1 for more info.
IdAS Solution & IdAS Library
The next layer down the stack is the deployable "IdAS" Identity Attribute Service Solution.
- Higgins 1.0: IdAS Solution 1.0: this solution provides a basic configuration of the Identity Attribute Service 1.0 (IdAS). IdAS is a java framework that provides a common interface to identity, profile, and relationship data from external data sources (e.g. websites, databases, directories) and expose them via the IdAS interfaces.
- Higgins 1.1: See Higgins_1.1_Plan#IdAS_Solution_1.1
XDI4J
XDI4J is a java support library for working with XDI.
- Higgins 1.0: XDI4j
- Higgins 1.1: Higgins_1.1_Plan#XDI4j
Context Data Model
CDM is an RDF/OWL-based common data model that is used in the bottom-most "data layer" of the Higgins architecture. It is implemented by IdAS.
- Higgins 1.0: Context Data Model 1.0
- Higgins 1.1: See Higgins_1.1_Plan#Context_Data_Model_1.1