Which companey's combined to create first POC for UDDI registry?
A,C,D
Correct answer
Explanation
The initial UDDI (Universal Description, Discovery, and Integration) proof-of-concept registry was created through collaboration between IBM, Microsoft, and SAP in 2000. These three companies formed the core alliance that launched the UDDI Business Registry (UBR). Sun Microsystems was notably NOT part of this initial UDDI effort - they were critics and later developed competing approaches like JAXR. The question tests knowledge of web services history and the key players in the UDDI initiative.