1. CIS 429—Chapter 8 Accessing Organizational Information—Data Warehouse

2. Accessing Organizational Information Applebee’s – $3.2 billion annual sales – 1500 restaurants in 49 states and 7 countries – Sales data stored in a data warehouse – Decisions made include Labor budgets based on number of guests Promotional sale item analysis Costs of food and use of ingredients

3. History of Data Warehousing Operational systems of the 1990s – Accounting, order entry, customer service, sales Such systems not appropriate for business analysis – Incomplete – Not integrated – Not ___________ – Poor quality – Not designed for ___________

4. Data Warehouse Fundamentals Introduction – Data warehouse A logical collection of aggregated information that supports business analysis and decision-making – Data warehouses compiled using ETL Extraction _________________ Loading – Data mart A _________ of data warehouse information

5. Data Warehouse Fundamentals (2) Multidimensional Analysis and Data Mining – A data warehouse is a multidimensional database or a ________ – Querying a data warehouse can be faster than querying a relational database – Data mining Extracting more complex information from a data warehouse – Data-mining tools find patterns and relationships in large volumes of information Statistical tools ___________ agents (http://en.wikipedia.org/wiki/Intelligent_agent)http://en.wikipedia.org/wiki/Intelligent_agent

6. Data Warehouse Fundamentals (3) Information Cleansing or Scrubbing – Low-quality information costs U.S. businesses _______ billion annually – Information cleansing and scrubbing finds and fixes low-quality information – Specialized software is designed to perform these operations

7. Business Intelligence BI is information used to support ______________ New technologies lead to increased amounts of information Enabling BI – Technology Hardware and software more available – People Quality people in key positions to perform analysis – __________ Executives who encourage the wise use of technology