About the new product structure
Under the new structure, each SCO OpenServer product is arranged in the following units:
The unit of software that you buy.
For example, SCO OpenServer Enterprise System and SCO Advanced File and Print Server are products.
Each product has its own version number.
A product is composed of one or more ``components'',
``packages'', or ``parcels''.
is one or more patches distributed as a product.
The smallest unit of software that can stand alone.
A component can constitute an entire product,
or it can be one of many components in a product,
but it cannot be split into smaller units for distribution.
Each component has its own version number.
A component is organized into a hierarchical tree of ``packages''.
is applied to a component (rather than to a product or package).
The smallest unit of software that can be installed or removed.
Each package consists either of files or of other packages.
A package does not have its own version number; it inherits the
version number of its parent component.
In addition to these units, a product might be subdivided into
In a parcel, related software is grouped for convenience.
For example, a parcel might contain the documentation packages from
several components, making it easier
to install or remove all the documentation in a product.
A parcel can contain one or more components, packages, or parcels
from the product.
The basis of the new product structure is the concept
of software storage objects (SSOs), a method
for arranging and naming the files in a distribution so that
each component starts out as a read-only object in a unique directory.
Each component is completely contained within an SSO, and each
SSO contains only one component.
Arranging a product in storage objects makes the following
support for diskless, small-disk, dataless, and network-client
installation and software management
multiple versions of a component loaded; and, for some components,
multiple versions runnable
object-oriented software management
Software storage objects
Networked ISL across subnet boundaries
© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003