|
mapping
|
|
The process
of matching data from source systems to the structures in a data warehouse.
|
|
mapping
tools
|
|
Tools used to perform mapping.
|
|
massively
parallel processing (MPP)
|
|
The shared-nothing
architecture of parallel computing that takes a number of nodes and enables them to communicate
rapidly. |
|
materialized
view
|
|
A complete facility for
creating, maintaining, and using summary tables. |
|
| MB - megabyte |
|
One million bytes. |
|
measure
|
|
Data
within the core of a data warehouse on which all online analytical processing
(OLAP) queries depend. See also fact data. |
|
megabyte (MB)
|
|
One million bytes. |
|
Meta
Object Facility (MOF)
|
|
The Object Management Group's (OMG's)
adopted standard for modeling metadata and representing it as CORBA objects. |
|
metadata
|
|
Data that contains information
about data and structures. |
|
metalayer
|
|
An architectural
component of a data warehouse that resides between the warehouse data
and the user and contains metadata. |
|
| middleware
|
|
Software
that provides some functionality between the database and the end user.
|
|
MIPS
|
|
Millions of instructions
per second. |
|
| model |
|
A type of database object
that contains a set of interrelated equations that are used to calculate
data and assign it to a variable or dimension value. |
|
| MOF—Meta Object Facility |
|
The OMG’s
adopted standard for modeling metadata and representing it as CORBA objects.
|
|
| MOLAP—multidimensional online analytical processing |
|
Data stored and presented
to the user over three or more dimensions. |
|
| MPP—massively parallel processing |
|
The shared-nothing
architecture of parallel computing that takes a number of nodes and enables them to communicate
rapidly. |
|
| MIDI—Musical Instrument Digital Interface |
|
A high-quality audio file
format. |
|
MIME—Multipurpose Internet Mail Extension
|
|
A protocol for allowing e-mail messages to contain various types of media,
such as text, audio, video, and images. |
|
multidimensional
analysis
|
|
Another term for online analytical processing.
|
|
multidimensional
data
|
|
Data
that is organized by two or more dimensions. Two-dimensional data is structured
as an array with rows and columns. Three- or more-dimensional data is structured
as a cube in which each dimension, or group of dimensions, forms an edge.
See also cube, dimension, and edge. |
|
multidimensional
database
|
|
A database management system
where data can be viewed and manipulated in multiple dimensions to support
specialized query techniques, such as drill-down. See also cube.
|
|
multidimensional
online analytical processing (MOLAP)
|
|
Data stored and
presented to the user over three or more dimensions. |
|
multimedia
database
|
|
A database containing other
than relational data, such as video or audio information. |
|
| Multipurpose Internet Mail Extension (MIME) |
|
A protocol for allowing e-mail messages to contain various types of media,
such as text, audio, video, and images. |
|
|
multithreaded |
|
A program
designed to have parts of its code execute concurrently. |
|
| Musical Instrument Digital Interface (MIDI) |
|
A high-quality audio file
format. |
|
