The Common Domain [ HP System Dictionary XL Gen. Ref. Vol. 1 ] MPE/iX 5.0 Documentation
HP System Dictionary XL Gen. Ref. Vol. 1
The Common Domain
System Dictionary includes a built-in domain called the common domain,
which is created when the dictionary is initialized. You can use this
domain as the standard dictionary, that is, the space where all the
standard entities and relationships reside, and it is accessible by any
dictionary user.
The common domain in each dictionary may be its only domain, or instead,
serve as the domain containing information common to any number of local
domains. (See the discussion on "linking", further on in this chapter.)
If you have no need for partitioning the dictionary, you would use the
common domain only. You can ignore the concept of domains, and when
opening a dictionary, allow System Dictionary to default to the common
domain.
MPE/iX 5.0 Documentation