A parallel development environment occurs in one of the
following situations. Your company decides to ship a product on more
than one platform (for example, one for Windows and one for UNIX). Your company ships more than one release
of a product (for example, a main product release and a patch release).
For a discussion about the parallel platform environment,
see About building on parallel platforms.
For information about how to set up this environment, see Setting up a parallel platform. For a discussion
about the parallel release environment, see Setting up parallel releases.