## Clinical Decision Support Service (CDSS) Traits Namespace, Version December 2010

###

### Introduction

This document describes the December 2010 version of the CDSS Traits namespace (http://www.omg.org/spec/CDSS/201012/dssTraits). It also contains a directory of links to related resources using the Resource Directory Description Language (RDDL) 2.0.

###

### Namespace URI Versioning Policy

The pattern of the OMG namespaces for XML Schema or XMI URIs shall be:

“http://www.omg.org/spec/<specAbbrev>/yyyymm(dd)” + optional suffix “/<nameAbbrev>”

The pattern of the OMG namespaces URIs for WSDL specifications shall be:

“http://www.omg.org/spec/<specAbbrev>/yyyymm(dd)/wsdl” + optional suffix “/<nameAbbrev>”

The optional suffix is required when there is more than one XML namespace defined in the spec.

The form of the date substring “ yyyymm(dd)” is the century, year, month (and optional day within month if there is more than one for the month) chosen for that version of the namespace URI.

It is the intent of OMG that specified namespace URI values will not change arbitrarily with each subsequent revision of the corresponding WSDL or XML Schema documents, but rather change only when a subsequent revision, published in conjunction with an OMG Specification, results in non-backwardly compatible changes from a previously published version of that Specification.

Under this policy, the following are examples of backwards compatible changes that would not result in assignment of a new namespace URI:

• addition of new global element, attribute, complexType and simpleType definitions
• addition of new operations within a WSDL portType or binding (along with the corresponding schema, message and part definitions)
• addition of new elements or attributes in locations covered by a previously specified wildcard
• modifications to the pattern facet of a type definition for which the value-space of the previous definition remains valid or for which the value-space of the preponderance of instance would remain valid
• modifications to the cardinality of elements for which the value-space of possible instance documents conformant to the previous revision of the schema would still be valid with regards to the revised cardinality rule

### Related Resources for this Namespace

Normative Reference to the PDF document of the OMG CDSS 1.0 Beta-2 standard, which specifies the semantics associated with this namespace: PDF

Normative Reference to the XML Schema associated with this namespace: OmgDssTraitSchema.xsd

### Related Namespaces

Namespace defining CDSS inputs and outputs -- http://www.omg.org/spec/CDSS/201012/dss

Namespace defining CDSS WSDL -- http://www.omg.org/spec/CDSS/201012/dssWsdl