News

Added automatic builds
Each day a ZIP-file is created via cron.
The builds consist of XMI, XSD, DocBook, PDF and graphs in dot, svg and png.
Added basic validation for names
installed module for validation, some rules for object and package names have been defined.
Added help for creating and managing the model
Guidelines for naming and propeties.
Added stage-tagging for objects
Re-arranged "Status" and added field for Stage, filter added on objects page.
Changes for Datatype
Datatype taxonomy is replaced by a datatype content type, to create a new one go to /node/add/datatype. You can specify basic documentation of the datatype and specify enumerated values. A datatype must be placed in a package.

Welcome to the development platform for the next generation of DDI

The DDI Alliance is building a new model-based specification, for more information on the background to this see, the process and what we hope to achieve see the DDI Alliance website at http://www.ddialliance.org/ddi-moving-forward-process.

A site to hold discussions and further ongoing discussion is at https://ddi-alliance.atlassian.net/wiki/pages/viewpage.action?pageId=491703

XClassificationParentChildRelation

This class describes directional (ordered) relations between two objects, a source and a target. The relationship is only implied between the two classes and the members of those classes. For example if the relationship is defined by setting the Relation Specification to ParentChild when realizing this class, the parent designated in the domain is the parent of all the objects listed in a collection identified as the range.

XClassificationWholePartRelation

This class describes directional (ordered) relations between two objects, a source and a target. The relationship is only implied between the two classes and the members of those classes. For example if the relationship is defined by setting the Relation Specification to WholePart when realizing this class, the source designated in the domain is the whole of all the objects listed in a collection identified as the range.

XUnorderedClassificationRelation

Unordered set of Classifications

XClassificationLevel

This relationship describes the levels within a hierarchical structure. It allows for strict ordering of the hierarchy, optionally relating a concept to the level, and identification of the relationships within the level. This allows clear identification of all relationships making up a hierarchical collection. When the member of a level is defined as an OrderedRelation, the source target of each member is considered to be a member of the level

XClassificationLevelItem

A specialized strict list item allowing a level item to contain an orderNumber (the level being described), one or more base collection types as items (generally UnorderedLists), and any hierarchical relations between the level being described and the next level in the order. Allows the level to be defined by a concept

XStatisticalClassification

A Statistical Classification is a set of Categories which may be assigned to one or more variables registered in statistical surveys or administrative files, and used in the production and dissemination of statistics. The Categories at each Level of the classification structure must be mutually exclusive and jointly exhaustive of all objects/units in the population of interest. (Source: GSIM StatisticalClassification)

XClassificationBaseRelation

An abstract base for a set of relationships used by a Classification System

XClassificationItem

A Classification Item links a representation (code) with a denoted object (classification) for the purpose of managing it within a Classification System. It contains additional management information particular to the Classification Item itself. It realizes the pattern class Sign. It is similar to GSIM Classification Item but does not include relational information (level, parent, subordinate) that are handled by relations in the collection pattern.

XCodeWholePartRelation

Defines a Whole/Part relationship of Codes in a hierarchical CodeList. May also be useful in describing a CodeList with a Total and a list of members.

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