FMV GRUND-DTD
Executive Overview
FMV Grund-DTD is a content-oriented SGML and HyTime DTD for information modules (modularised
technical documentation for operation and maintenance), developed by the
Swedish Defence Material Administration (FMV) in order to integrate technical
information with other product data in a product model environment.
The FMV Grund-DTD design team has been lead by Celsius Inforum AB, and consists
of representatives from Swedish defence organisations, all experts in their
particular field. Earlier experiences as well as external efforts have
influenced the development to a great extent.
The DTD has been published and distributed world wide with the intention that
others may benefit in the same way as we have of the work of others, and that
we will benefit by receiving comments and support for our work.
FMV Grund-DTD is highly content-oriented in order to provide a markup of the
information that is independent of presentation. It has been found that
content-oriented markup is the best means of marking up information that will
be processed for different objects and presentations, since it simply states
what the marked up information really is.
FMV Grund-DTD models the information in modules, which is normally smaller than
ordinary documents. Each information module is associated with a physical or
functional object, or a function, of a material breakdown structure. It is also
limited to one type of information, i.e. description, fault finding, preventive
maintenance, maintenance task, test procedure, operation, etc. In a product
model, information must be distinct and clearly defined in order to provide
efficient access and re-use of information.
The DTD provides a further possibility of dividing the information into
information fragments, which may be used to avoid duplication of information,
e.g. for standard descriptions and warnings, information on tools and
equipment, as well as for version and variant creation and management.
FMV Grund-DTD uses HyTime independent link for all references and relations.
The intention has been to provide independent access to the linkends, for
updating purposes, without the need of changing the information modules
themselves. The HyTime links are used for references, inclusions of data (e.g.
from databases), and associations to objects in a material breakdown structure
defined elsewhere.
FMV Grund-DTD will be updated and new functionality will be included as
required. Such functionality may include further HyTime functions, IETM
functionality and modules for other types of information currently not covered
by the DTD.
Due to the strong demand for association with other product data, FMV is also
engaged in the possible interoperability between the two standards ISO 10303
STEP and ISO 8879 SGML, and have developed a recommendation for how this may be
implemented without compromising either standard.
FMV CALS Office, FMV, S-115 88 STOCKHOLM, SWEDEN
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FMV Grund-DTD version 1.10
