This appendix describes the application programming interface (API) functions that third-party software vendors must implement in the dynamic link libraries (DLL) that they provide for use with the SDQ Universal Connector. It includes the following topics:

• Vendor Dynamic Link Libraries
• Connector Initialization and Termination Functions
• Session Initialization and Termination Functions
• Parameter Setting Functions
• Error Message Functions
• Real-Time Data Matching Functions
• Batch Mode Data Matching Functions
• Real-Time Data Cleansing Functions
• Batch Mode Data Cleansing Functions
• Data Matching and Data Cleansing Algorithms