It is crucial for organizations to have critical and timely 
information available in order to make decision to make progress and 
more importantly sustain the business. Hence it is necessary for to be 
facilitated with software and systems to manage, prioritize and ensure 
the availability information. Moreover companies should adopt necessary 
precautions to protect their data and also to efficiently handle the 
exponential growth of the same.
Quick data retrieval became 
problematic with the evolution of technologies due to data being 
distributed among many servers, which eventually caused the introduction
 of data warehousing. Data warehousing has been accepted as a solution 
to the burden of managing data, which is considered as an asset of any 
organization.
Data Warehouse
  
 A data warehouse by definition is a repository which stores 
subject-oriented, historical data in an organized and quickly accessible
 manner, used for analytical processing such as data mining, decision 
making, querying and other applications.  The concept of data 
warehousing is strongly interrelated with data access, retrieval, 
analysis and visualization. Features that comprise it are organization, 
consistency, time variance, nonvolatile nature, real-time and 
integration of data, and relational and web based architectures.
  
 Most of the organizations adhere to the concept not only because of the
 features revealed above, but also its ability to structure data 
according to business processes such as shipping, purchasing and 
inventory and the provision of access to data through web based systems 
for the end users. In addition to that, data warehouses cater the 
storage of metadata, which include software programs about data, 
information on indexing, data summaries and rules to organize data.  
Furthermore it is proven that this can benefit a company by providing 
consolidated information which can be used to infer cost effective 
solutions and also offload information processing from expensive 
operational systems onto cheaper servers. Therefore it is irrefutable 
that companies receive competitive advantage, enhanced customer service 
and satisfaction, improved business knowledge, help in streamlining 
business processes and advantages in decision making.
   
Nevertheless building and maintaining a data warehouse is extremely 
expensive. It may also be difficult to incorporate data from legacy 
systems. Thus, a feasibility analysis is required when deciding to use a
 data warehouse.
 
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