Modeling a data warehouse
Organizations need a way to convert their data into actionable information, and one technique for accomplishing this is multidimensional modeling (MDM). MDM is a way to conceptualize business models as a set of measures described by ordinary aspects of business; it is particularly useful for sifting...
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Published in | InformationWeek (Manhasset, N.Y.) no. 564; p. 60 |
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Main Author | |
Format | Magazine Article |
Language | English |
Published |
Manhasset
UBM LLC
29.01.1996
Informa |
Subjects | |
Online Access | Get full text |
ISSN | 8750-6874 |
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Summary: | Organizations need a way to convert their data into actionable information, and one technique for accomplishing this is multidimensional modeling (MDM). MDM is a way to conceptualize business models as a set of measures described by ordinary aspects of business; it is particularly useful for sifting, summarizing, and arranging data for analysis. OLTP systems are based on entities, relationships, functional decomposition, and state transition analysis, but MDM for data warehousing is based on facts, dimensions, hierarchies, and sparsity. A fully normalized OLTP design for an order-entry system could have hundreds of tables, but MDMs are much simpler; a good MDM can be implemented in a relational database, a multidimensional database, or an object-oriented database. Aspects to consider when building an MDM are examined, and how MDMs differ from relational models is described. |
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ISSN: | 8750-6874 |