Enterprise Web Services

Standards based interoperable systems using service oriented architectures are pivotal in CDC’s efforts to foment the evolution of the national public health grid model for exchange of information with internal and external partners. Along with the desire for information exchange, the CDC has other drivers like minimizing cost and providing a collaborative framework for state and local public health partners while ensuring the long term sustainability of its business processes. With these overarching goals, CDC’s NCPHI team has initiated a web service framework for the architecture of the next generation PHIN Vocabulary and Distribution System (PHINVADS). Key components of the new PHINVADS framework will be implemented as services in a phased approach. The service interfaces will include ontology access, vocabulary access and authoring, security for authentication and authorization, governance, data distribution, subscription, data load and transformation, and OID registry access. The vocabulary access and service interfaces will work in conjunction with the VADS authoring tool to satisfy some of the HL/7 Common Terminology Services (CTS) requirements to query information, address relationships between terminologies and allowing governance based reconciliation process to create new value sets, code system concepts etc. The BEA Weblogic Application server will serve as the service backplane for the components which will be implemented as web services. Initial implementation will begin with some of the common features of routing, naming, quality of service, communication and security. Later implementations will evolve to the more advanced features of orchestration, registries and service governance. The services will adhere to the industry and federal guidelines for best practices of service definitions, service lifecycle management and governance. This session will present an overview of this architecture plan, and review specific components. Included will be a detailed review of the specific implementation of the vocabulary and security services along with supporting applications.