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Data Warehouse
Data Warehouse is a
repository of an organization's electronically stored data. Data
warehouses are designed to facilitate reporting and analysis.
This classic definition of the data warehouse focuses on data
storage. However, the means to retrieve and analyze data, to
extract, transform and load data, and to manage the data dictionary
are also considered essential components of a data warehousing
system. Many references to data warehousing use this broader
context. Thus, an expanded definition for data warehousing includes
business intelligence tools, tools to extract, transform, and load
data into the repository, and tools to manage and retrieve metadata.
Data Warehouse is combination of Fact Tables and Dimension tables for a
particular vertical. Data Warehouse data is historical as well as current data
both for the Fact and Dimension Tables. Data Warehouse design concept keeps
Database as well as On line Transaction Processing Database resources free from
Analysis and uses resources of other servers. The Fact Tables are designed to
include columns and rows of database tables to give More analytical Abilities.
Data is gathered from various sources and consolidated in the Data Ware House.
Data is updated at regular intervals decided by the requirement of Analysis. In
days of Data Explosion when more data is available and which cannot be
fruitfully analyzed manually with the help of Desk top Applications and
Databases. Data Warehouse streamlines the Data so that Analysis can be carried
out.
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All Applications of Business
Intelligence and Artificial Intelligence run using Data Warehouse.
Multi-Dimensional Multi-Cube Structures are created which use Data Warehouse and
Give reports for formulation of Corporate Business Strategy. This Strategy is
very important when Business Competition is increasing due to free economies and
International pressures. This helps in achieving larger market share, improved
productivity, improved delivery, improved profitability and improved Corporate
Governance. Business Managers get relevant information very fast at their desk
tops.
The data warehouse architecture is
based on a relational database management system server that functions as the
central repository for informational data. In the data warehouse
architecture, optional data and processing are completely separate from data
warehouse processing.
Recom Systems Limited provide
you with Data Warehouse design and applications with hardware, networking and
telecommunications configurations.
Some of the benefits that a data
warehouse provides are as follows:
* A data warehouse provides a common data model for all data of interest
regardless of the data's source. This makes it easier to report and analyze
information than it would be if multiple data models were used to retrieve
information such as sales invoices, order receipts, general ledger charges, etc.
* Prior to loading data into the data warehouse, inconsistencies are identified
and resolved. This greatly simplifies reporting and analysis.
* Information in the data
warehouse is under the control of data warehouse users so that, even if the
source system data is purged over time, the information in the warehouse can be
stored safely for extended periods of time.
* Because they are separate from operational systems, data warehouses provide
retrieval of data without slowing down operational systems.
* Data warehouses facilitate decision support system applications such as trend
reports (e.g., the items with the most sales in a particular area within the
last two years), exception reports, and reports that show actual performance
versus goals.
* Data warehouses can work in conjunction with and, hence, enhance the value of
operational business applications, notably customer relationship management
(CRM) systems.


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