Emerging Infectious Program (EIP) Web Service CHIIC Update May 12, 2015 Jason Hall – NCEZID, CDC Sreeni Kothagundu, Northrop Grumman – NCEZID, CDC National Center for Emerging and Zoonotic Infectious Diseases Emerging Infections Programs (EIP)
EIP Web Service Background Enhanced EIP Web Service EIP Web Service Architecture Next Steps
What is EIP? The Emerging Infections Programs (EIP) is a population-based network covering 15% of the population and consists of projects to improve patient outcomes through evaluation and improvement of emerging infection prevention and control methods. Over 40 projects and around 20 special studies A collaboration of CDC, state health departments, universities, hospitals, and other federal agencies. Over 500 publications
EIP IT Mix of information system types – study databases, case information management systems, site systems Systems used for projects can vary by site Multiple transport methods in use Project protocols can change yearly Adopted IT Strategy in 2012
Problem CDC-developed case management system Two installations – CDC and at each site Current process was cumbersome and open to errors Export to file from one system and upload to other
Existing alternatives SAMS PHINMS SFTP
Current EIP Web Service Existing EIP Web Service release Supports only a single EIP Program - Designed as proof of concept - Minimally extensible architecture Enhanced Web Service aligns with key strategic EIP IT goals: - Improve and modernize current EIP technology - Adapt and transform PH information is and will be exchanged, expanding use of EHR data, utilizing other or novel sources EIP IT Goals align with CDC surveillance strategy goal: …accelerating the utilization of emerging tools and approaches to improve the interoperability, availability, quality and/or timeliness of surveillance data
EIP Web Service v2.0 Is reusable by other C/I/O’s As CDC Shared Services, with appropriate resources to NCEZID for additional support personnel and expansion to more scalable server configurations Changed the framework and service to support a second EIP program Provides support for new data interfaces through Requires only configuration and minor development specific for new data
EIP Web Service – Data Flow Data transport protocol designed for use between state surveillance information systems and CDC State surveillance information systems invoke EIP Web Services (in CDC DMZ) to fulfill the application requests to transfer non-PII data to CDC EIP Web Services logs and stores received data in EIP Repository is shared with EIP CDC programs.
EIP Web Service Service Oriented Architecture Overview
EIP Web Service - System Architecture
Modular Approach Adopted SOA – Service Oriented Architecture Every function / feature is a service that can be hosted in the CDC DMZ All the services can be shared and reused with minimal effort EIP Services can be shared with other programs or other CIOs can hosted
Custom Security OCISO approved custom IP based security Machine to machine communication Communication using HTTPS only. (HTTPS ports only) Passwords are encrypted; no clear password text IP based security; IP extracted on the fly from SOAP requests Why not SAMS authentication? No API available for SAMS SAMS does not support SOAP SAMS Identity proofing is limited to humans/users, not for the machines
Multiple IP Support ITSO does not support implementing firewall rules at the application level All standard IPs are enabled by default Supports range of IP addresses from States Supports limited and logical firewall rules Unauthorized IPs blocked by EIP WS and requests logged without processing Supports both IPV4 and IPV6 addresses
Extensible EIP WS are SOAP-based services Expandable to RESTful services Easily extensible for two-way data communication between states and CDC Expandable to transfer data types XML, JSON, TEST, CSV, Excel and serializable binary data streams
Next Steps ATO received April 17 √ Testing with partners May - June 2015 Replace existing EIP WS July nd EIP project implemented January 2016 Available for other CDC Programs
Questions