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Information Management's Glossary

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Versioning
The ability for a single definition to maintain information about multiple physical instantiations.


Vertical partitioning
Vertical partitioning divides a single logical table into multiple physical tables based on the columns. All rows may appear in the new tables, but each new table contains a subset of the original table's columns. The set of columns may be redundant across tables, and will necessarily be so for the columns that implement keys and indexes. Columns for row-level metadata are also implemented in all resultant tables. Vertical partitioning is employed when there is a regular need to access or to isolate a readily identifiable subset of the "parent" table's columns. This technique may be effective to meet security, distribution, and usability requirements.


View
pictorial representation; extent of range of vision


Visibility
Visibility is seeing what is coming to know if and when change is needed.


VITAL
An acronym for Virtually Integrated Technical Architecture Lifecycle.


VITAL compliance
Conformance to the design objectives and principles, distributed computing styles, development approaches, standards, and data-distribution and access techniques; functional compatibility with the VITAL technical architecture.


VLDB
Very Large Databases.


Vortal
Targeted vertical portals that are aimed at specific interest groups and focus on providing consumers with a gateway to information from other sources.