Framework di architettura di servizi per la sanita'

       HSSP IXS

The Identity Cross-Reference Service (IXS) specific has the objective to define service interfaces for creating, recording, updating, research, identification, retrieval, querying, mapping the personal identification data of patients, operators, organizations.


The mode of service definition is similar to that used RLUS. The operations are defined in a "generic" and are independent of the parameters format, which must be explicitly stated.


The IXS services do not handle strictly health information, such as information about clinical acts.

The identity management of an entity in the health universe, is based on the medical establishment and maintenance of a record of identifiable features of a real world entity (eg. for a patient name, last name, social security number, date of birth ...) and an index consisting of a sequence of pairs Source ID / Entity ID, which identify all the same real-world entity.The Source ID identifies the system that has "created" the Entity, and EntityID is the identifier of the entity in the domain of the Source. The occurrence of the IXS service in turn assigns a unique identifier (ID IXS) which is attributed to the sequence of pairs and to the Entity and it constitutes an IXS Record.

La Source ID identifica il sistema che ha "generato" l'Entity, e l'EntityID è l'identificatore dell'entità nel dominio del Source. L'occorrenza del servizio IXS attribuisce a sua volta un identificatore univoco (IXS ID) che è attribuito alla sequenza di coppie e alla Entity e che costituisce un IXS Record.

The IXS service portfolio is decomposed into Management And Query Interface (QM), the Admin Interface Editor (Admin) and the Meta Data Interface. The MQ presents the basic steps necessary to associate an Identity to an Entity such as:

Register an Identity

Allows the creation of an identity associated to a set of property values ​​for identification, for an occurrence of an entity in a jurisdictional domain. The unique domain identifier is provided by the user;

Create an Identity

Allows the creation of an occurrence of identity associated to a list of property values ​​for the identification and generation of an identifier that is returned to the applicant (the service user). The operation is used when the user is not able to provide the identifier;

Update Identity (Property Values)

Permission to update property values that identify an entity (demographics) defined by the identifier;

Update Identity (State)

Change the "state" of an identity (such as "inactive", "active", or other states that will be defined in specific semantic profiles);

Remove an Identity (Instance from IXS)

Allows the "complete" removal identity as a IXS service. In each case, the specification assumes that the identifiers removed can not be reused.


The Admin allows to manage the operations of the "maintenance" of the entities repository (resolution of duplicates, links, mergers):

ü Link;

ü Unlink;

ü Merge.


The Meta Data Interface allows to manage Semantic Signifier (create, update, search ...). The PIM IXS specifics are compiled by HL7 while those at PSM are managed by OMG on the WS * platform. In the Healthsoaf context will be implemented for the entire functionality of all three interfaces on WS * platform.