Data models are
a great communication tool because it facilitates interaction and
communication between the designers, programmers and end users. In essence it
does not allow one party's bias towards a certain view of a data (what they
consider to be most important) to take hold.
· A well- developed data model can even foster improved understanding of the organization for which the database design is developed.
· Data model help in structuring and organizing data. These data structures are then typically implemented in a database management system which is used mostly by organization for decision making.
·
In
addition to defining and organizing the data, data modeling will impose
(implicitly or explicitly) constraints or limitations on the data placed within
the structure.
STANDARD DATA MODEL
A standard data
model or industry standard data model (ISDM) is a data model that is widely
applied because heterogeneous organizations have standard vocabulary and pre-negotiated
format, and quality standards for exchange
EXAMPLE OF STANDARD DATA MODEL
1.
ISO
10303: ISO 10303 is an ISO standard the computer-interpretable representative and
exchange of product manufacturing information.
2.
ISO
15926: The ISO 15926 is a standard for data integration, sharing, exchange, and
hand-over between computer systems.
3.
IDEAS
Group: The IDEAS Group is the International Defense Enterprise Architecture
Specification for exchange Group. The deliverable of the project is a data
exchange format for military Enterprise Architectures.