Terminology
- channel
- A group of containers, used to pass data between programs. A channel
is analogous to a parameter list.
- container
- A named block of data used to pass information between programs. You can
think of it as a “named communication area (COMMAREA)”. Programs can pass
any number of containers between each other. Containers are grouped together
in sets called channels.
- current channel
- The channel, if any, with which a program is invoked. The current channel,
for a particular invocation of a particular program, does not change.