DatamartIn the context of data warehouse design, a basic role is played by conceptual modeling, that provides a higher level of abstraction in describing the warehousing process and architecture in all its aspe
The development of a data warehouse is based on the definition of a conceptual multidimensional model. This model is used to obtain the required database metadata for implementing the data- warehouse repository. Surprisingly, current approaches for multidimensional modelling overlook the necessity of gene...
The three levels of data modeling, conceptual data model, logical data model, and physical data model, were discussed in prior sections. Here we compare these three types of data models. The table below compares the different features: Feature...
Conceptual Data Modeling refers to the process of designing a simplified representation of real-world data requirements, using schema diagrams and graphical objects, such as rectangles and diamonds, to depict entities and relationships. It is a vital component of logical database design, aiming to cr...
Data warehouse (DW) quality depends on its data models (conceptual, logical and physical model). Multidimensional (MD) modeling has been widely recognized as the backbone of data modeling for DW. Recently, some of the authors have proposed a set of structural metrics to assess quality of MD ...
temporal data warehouseETLDW securityconceptual modelingUMLIn the past few years, several conceptual approaches have been proposed for the specification of the main multidimensional (MD) properties of the data warehouse (DW) repository. However, most of them deal with isolated aspects of the DW and...
Modeling The Data Warehouse And Data Mart.pdf 热度: A Data Warehouse Conceptual Data Model for Multidimensional Aggregation Enrico Franconi Dept. of Computer Science Univ. of Manchester Manchester M13 9PL, UK franconi@cs.man.ac.uk Ulrike Sattler ...
Data modeling (data modelling) is the process of creating a data model for the data to be stored in a database.
A conceptual schema is defined as a specification of the functional requirements of an information system, consisting of a structural schema and a behavioral schema that capture the knowledge about the desired system functionality. AI generated definition based on: Topological UML Modeling, 2017 ...
Data warehouses (DW) are being considered as efficient components of decision support systems [7]. They are usually structured according to the multidimensional structure (also called a cube), which facilitates a rapid navigation within different levels of data granularity (from coarser to finer lev...