This section introduces the fundamental concepts of Advanced Program-to-Program Communications (APPC) in a distributed processing environment. These concepts include:
Detailed descriptions of APPC verbs are provided in APPC Management Verbs, APPC TP Verbs, and APPC Conversation Verbs.
APPC is an application programming interface (API) that allows peer-to-peer communications in a Systems Network Architecture (SNA) environment. Through APPC, programs distributed across a network can work together, communicating with each other and exchanging data, to accomplish a single processing task such as querying a remote database, copying a remote file, or sending and receiving electronic mail.