Upload
rishabh-dogra
View
676
Download
2
Embed Size (px)
DESCRIPTION
Introduction to Data Warehouse
Citation preview
LOGO
The Data Warehouse:
Home for YourData Assets
04/13/2023 1
Submitted by:Rishabh DograR3-11609171
Outline
Expectations
Data Warehouse
/Data DumpThe Historical
PerspectiveIs Bigger
the Better
History
About Data
warehouse
04/13/2023 2
What Is A Data Warehouse?
“It is a home for high-value data, or data assets, that
originates in corporate applications”
04/13/2023 3
What Is Data Warehousing?
“Data warehousing is the coordinated, architected, and periodic copying of data from
various sources, both inside and outside the enterprise, into an environment optimized for
analytical and informational processing despite platform, application, organizational, and other
barriers.”
A Data Warehouse Is
Centralized
Well-managed Environment
Consistent And Redundant Processes
Open And Scalable Architecture
Process The Data Into Information
04/13/2023 4
History
1970’s The Preparation
1980’s The Birth
1990’s The Adolescent
2000’sThe Adult
• Dominated by Mainframe.
• Continually bothering the Data-processing Department.
• Concept of Tera Data
• PCs PCs & More PC’s
• Islands of Data.
• Concept of DDMS & RDMS
• Birth Place for data warehouse Innovations
• Computing went Mainstream
• Client/server technology
• Cost EffectiveSolutions
• Data warehouse solutions embedded in software suits
• Plug Compatible data warehouse solutions
04/13/2023 5
Is a Bigger Data Warehouse a Better Data Warehouse?
The size of a data warehouse is a characteristic — “almost a by-product”
— of a data warehouse; it’s not an objective.
Business Objectiv
e
The Function
alityContents
Volume
04/13/2023 6
Historical Perspective
04/13/2023 7
TIME LAG
It’s Data Warehouse, Not Data Dump
VS
04/13/2023 8
Expectations from Data Warehouse
Tool To Make Better Business Decisions
Who are our lowest orhighest margin customers ?
Who are our lowest orhighest margin customers ?
Who are my customers and what products are they buying?
Who are my customers and what products are they buying?
Which customers are most likely to go to the competition ?
Which customers are most likely to go to the competition ?
What promotions have the biggest impacton revenue?
What promotions have the biggest impacton revenue?
What is the most effective distribution channel?
What is the most effective distribution channel?
What impact will new products/services have on revenue and margins?
What impact will new products/services have on revenue and margins?
04/13/2023 9
Finding data at your Finger Tips
Expectations from Data Warehouse
04/13/2023 10
Expectations from Data Warehouse
Facilitating Better Communications Among Different Business Units
04/13/2023 11
IT Side Issues
Unrealistic
request No
participation during development and testing
Technology-
challenged
Business Users Complaints
Developers have no idea about business
Unnecessary
features IT is too slow in
responding to requests for support.
• IT - BUSINESS ORGANIZATION COMMUNICATION
• COMMUNICATION ACROSS BUSINESS ORGANIZATION
Facilitating Better Communications Among Different Business Units
Expectations from Data Warehouse
04/13/2023 12
Expectations from Data Warehouse
04/13/2023 13
Act as an early-warning system.
Provide insight into key areas that can help to make
Strategic decisions Facilitates decision
making eg: which products you want to keep in stock.
Facilitates to make data-based decisions
Facilitates Business Change
May I help you with any
clarifications?
04/13/2023 14