Components of Data Warehousing By Jason Howell Knowledge Repository Presentation

Key Objectives What is the importance of Data warehousing? What is the importance of Data warehousing? What is the benefits involved? What is the benefits involved? Components of Data warehousing Components of Data warehousing Data warehousing strategies Data warehousing strategies History of the Data warehouse History of the Data warehouse

Importance of Data Warehousing Easier access to business data Easier access to business data Faster processing of business data Faster processing of business data Better analysis of data Better analysis of data Key component of IT industry Key component of IT industry Adds competitive advantage Adds competitive advantage

Benefits of Data Warehousing Main reason is the competitive advantage obtained Main reason is the competitive advantage obtained Better performance of gathering information for querying and reporting Better performance of gathering information for querying and reporting Provide a well organized depository of valuable business data Provide a well organized depository of valuable business data

Brief History of the Data Warehouse Dramatic changes have occurred in the past decade Dramatic changes have occurred in the past decade Became rapidly important throughout the 90’s Became rapidly important throughout the 90’s Technology increase has played a role in the importance of having a data warehouse Technology increase has played a role in the importance of having a data warehouse Data warehousing is an important factor to ERP Data warehousing is an important factor to ERP

Basic Data Warehouse Model

Main Functions of a Data Warehouse Capture all information of the business, even day to day activities Capture all information of the business, even day to day activities Use the information to make accurate and informed decisions pertaining to the customers Use the information to make accurate and informed decisions pertaining to the customers Allows businesses to compete in the market place much more effectively Allows businesses to compete in the market place much more effectively

Implementation Not always easy to implement Not always easy to implement In some cases, takes a series of trial and errors In some cases, takes a series of trial and errors Must adjust the warehouse to fit your particular business needs Must adjust the warehouse to fit your particular business needs Implementation is involved with other parts of the IT structure at companies Implementation is involved with other parts of the IT structure at companies

Strategic Planning Using a data warehouse is involved with your business strategy Using a data warehouse is involved with your business strategy “Strategy is about, and only about, building advantage.” “Strategy is about, and only about, building advantage.” The more information involved in the data warehouse, the more strategic advantage you have The more information involved in the data warehouse, the more strategic advantage you have Data warehousing is used in effective Knowledge management Data warehousing is used in effective Knowledge management The more effective your knowledge management systems is, the more strategic advantage you have The more effective your knowledge management systems is, the more strategic advantage you have

Data Warehousing and Data Marts Data Warehouse Data Warehouse –The “big” picture –Focuses on a single large server or mainframe –A consolidation point for enterprise data Data Mart Data Mart –Deals with servicing a distinct community of knowledge –Is a smaller component of a Data warehouse

Outsourcing Some companies outsource their data warehousing needs Some companies outsource their data warehousing needs IT field is currently in a mixed interest to companies IT field is currently in a mixed interest to companies Outsource or In-house? Outsource or In-house?

The Life Cycle of Today’s Data Warehouse The DW has come a long ways since the beginning The DW has come a long ways since the beginning Up-to-dateness is critical Up-to-dateness is critical Most be able to react to business requirements Most be able to react to business requirements –The more scalable the better –Adds competitive advantage

Better Decision Making Decision making is not just human based anymore Decision making is not just human based anymore Data warehousing has added automation Data warehousing has added automation –Speeds up analysis time –More reliable results More informed decisions More informed decisions Better competitive advantage Better competitive advantage

Summary Data warehousing will only become more and more important to a company’s needs Data warehousing will only become more and more important to a company’s needs Is becoming more widely used, especially in enterprise resource planning Is becoming more widely used, especially in enterprise resource planning