job --
One or more processes grouped together but issued as a single command.
For example, a job can be a shell script containing several commands
or a series of commands issued on the command line connected by a
pipeline. The shell typically provides a series of job control tools.
job identifiers --
A value assigned to components of a remote administrative activity
or to the entire remote task. There are three types of job
identifiers: service job identifiers, administrative job identifiers,
and primitive job identifiers.