DATA WAREHOUSE,DATA MART,LATEST INFORMATION FROM PUBLISHED PAPERS

1. PROJECT REPORT ON
DATA WAREHOUSING
SUBMITTED BY:
SANA ALVI
(24)

2. TABLE OF CONTENTS:
 ABSTRACT OF DATA WAREHOUSING
 INTRODUCTION OF DATA WAREHOUSING
 BACKGROUND OF DATA WAREHOUSING
 ARCHITECTURE OF DATA WAREHOUSING
 ADVANTAGES OF DATA WAREHOUSING
 CONCLUSION
 REFRENCES

3. ABSTRACT
 Presently, large enterprises rely on database systems
to manage their data and information. These
databases are useful for conducting daily business
transactions. However, the tight competition in the
marketplace has led to the concept of data mining in
which data are analyzed to derive effective business
strategies and discover better ways in carrying out
business. In order to perform data mining, regular
databases must be converted into what so called
informational databases also known as data
warehouse. Data warehouse is used for transforming
an operational database into an informational
warehouse useful for decision makers to conduct
data analysis, predication, and forecasting.

4.  A data warehouse can be thought of as a place the
information systems department puts the data that is
to be turned into information. Data warehouses are
information repositories specialized in supporting
decision making. It is used for transforming an
operational database into an informational
warehouse useful for decision makers to conduct
data analysis, predication, and forecasting.

5. INTRODUCTION
 Nowadays, almost every enterprise uses a database to
store its vital data and information (Pant, May 21–24,
1995,).For instance, dynamic websites, accounting
information systems, payroll systems; stock management
systems all rely on internal databases as a container to
store and manage their data. The competition in the
marketplace has led business managers and directors to
seek a new way to increase their profit and market power,
and that by improving their decision making processes. In
this sense, the idea of data warehouse and data mining
was born (Zhu & Davidson, 2007).

6.  Data warehousing is the process of collecting data from
operational functional databases, transforming, and then
archiving them into special data repository called data
warehouse with the goal of producing accurate and
timely management information (Preeti S. S. R., 2011);
whereas, Data mining is the process of discovering trends
and patterns from data warehouse, useful to carry out
data analysis (Kantardzic M. , 2003.)

7.  A typical university often comprises a lot of
subsystems crucial for its internal processes and
operations. Examples of such subsystems include the
student registration system, the payroll system, the
accounting system, the course management system,
the staff system, and many others. In essence, all these
systems are connected to many underlying distributed
databases that are employed for every day transactions
and processes.

8. Background of Data Warehouse
 Operational Database: An operational database is a
regular database meant to run the business on a
current basis and support everyday transactions and
processes (W. H. Inmon, 1992.).
 Informational Database: An informational database
is a special type of database that is designed to support
decision making based on historical point-in-time and
prediction data for complex queries and data mining
applications. A data warehouse is an example of
informational database.

9.  Data Mining: In its broader sense, it is a knowledge
discovery process that uses a blend of statistical,
machine learning, and artificial intelligence
techniques to detect trends and patterns from large
data-sets, often represented as data warehouse. The
purpose of data mining is to discover news facts about
data helpful for decision makers (Tan, Steinbach, &
Kumar, 2005).

10. ARCHITECTURE OF DATA
WAREHOUSING
 The warehouse architecture may include:
 (Mumick, Gupta, & IS, 18, June 1995)
 • Process Architecture
 • Data Model architecture
 • Technology Architecture
 • Information Architecture
 • Resource Architecture

12. ADVANTAGES OF DATA
WAREHOUSING
 Integrating data from multiple sources;
 Performing new types of analyses; and
 Reducing cost to access historical data.
 Standardizing data across the organization, a "single
version of the truth";
 Improving turnaround time for analysis and reporting;
 Sharing data and allowing others to easily access data;
 Supporting ad hoc reporting and inquiry;
 Reducing the development burden on IS/IT; and
 Removing informational processing load from
transaction-oriented databases;

13. CONCLUSION
 Data warehouse is a collection of wide variety of
corporate data that is organised and made available to
the end users for decision-making purposes .DW is
used by managers and knowledge workers who require
access to this data for analysing the business and
planning its future. Data warehouses have come into
use because of high capacity mass storage. Data
warehousing is the leading and most reliable
technology used today by companies for planning,
forecasting, and management for e.g. resource
planning, financial forecasting and control etc.


14.  Data warehouses need a lot more maintenance and a
support team of qualified professionals is needed to
take care of the issues that arise after its deployment
including data extraction, data loading, network
management, training and communication, query
management and some other related tasks.

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