Overview of the Corporate Information Factory and Dimensional Modeling Copyright (c) 2010 BIS3 LLC. All rights reserved. Data Warehouse Architect: Rosendo Abellera ` President, BIS3 o Nearly 2 decades software and system development o 12 years in DW and BI space o 25+ years of data and intelligence/analytics Other Notable Data Projects: ` Accenture ` Toshiba ` National Security Agency (NSA) ` US Air Force Copyright (c) 2010 BIS3 LLC. All rights reserved. 2 A data warehouse is a repository of an organization's electronically stored data designed to facilitate reporting and analysis. Subject-oriented Non-volatile Integrated Time-variant Reference: Wikipedia Copyright (c) 2010 BIS3 LLC. All rights reserved. 3 Copyright (c) 2010 BIS3 LLC. All rights reserved. 4 3rd Normal Form Bill Inmon Data Mart Corporate ? Enterprise Data ? Warehouse Dimensional Information Hub and Spoke Operational Data Modeling Factory Store Ralph Kimball Slowly Changing Dimensions Snowflake Star Schema Copyright (c) 2010 BIS3 LLC. All rights reserved. 5 ` Corporate ` Dimensional Information Factory Modeling 1.Top down 1.Bottom up 2.Data normalized to 2.Data denormalized to 3rd Normal Form form star schema 3.Enterprise data 3.Data marts conform to warehouse spawns develop the enterprise data marts data warehouse Copyright (c) 2010 BIS3 LLC. All rights reserved. 6 ` Focus ◦ Single repository of enterprise data ◦ Framework for Decision Support Systems (DSS) ` Specifics ◦ Create specific structures for distinct purpose ◦ Model data in 3rd Normal Form ◦ As a Hub and Spoke Approach, create data marts as subsets of data warehouse as needed Copyright (c) 2010 BIS3 LLC. All rights reserved. 7 Copyright (c) 2010 BIS3 LLC. All rights reserved. 8 ` Focus ◦ Business Process Oriented ◦ User Understandability ◦ Performance ` Specifics ◦ Declare the level of granularity ◦ Develop conformed dimensions ◦ Identify metrics and measurements ◦ Data Bus Matrix Copyright (c) 2010 BIS3 LLC. All rights reserved. 9 Copyright (c) 2010 BIS3 LLC. All rights reserved. 10 ` Popularity of Dimensional Modeling ◦ Adopted by ETL companies (e.g., Informatica) ◦ Evident in the strategies of mainstream BI tools such as Cognos, Microsoft’s Analysis Services, OBIEE, etc. ` Shift in focus to Enterprise Architecture ◦ SOA and Master Data Management rethinking ◦ Consideration for Other Structures ◦ Combination of Inmon and Kimball Approaches Copyright (c) 2010 BIS3 LLC. All rights reserved. 11 ` Holistic Approach to Enterprise Data ` Data Integrity and Cleansing ` DM in Semantic Layer of BI Tools ` ODS can be used as a great data source for the Data Warehouse Copyright (c) 2010 BIS3 LLC. All rights reserved. 12 Copyright (c) 2010 BIS3 LLC. All rights reserved. 13 3rd Normal Form Bill Inmon Data Mart Corporate ? Enterprise Data ? Warehouse Dimensional Information Hub and Spoke Operational Data Modeling Factory Store Ralph Kimball Slowly Changing Dimensions Snowflake Star Schema Copyright (c) 2010 BIS3 LLC. All rights reserved. 14 ` Corporate Info ` Dimensional Factory Modeling 3rd Normal Form Data Mart Ralph Kimball Bill Inmon Slowly Changing Hub and Spoke Dimensions Operational Data Snowflake Store Star Schema Enterprise Data Enterprise Data Warehouse Warehouse Copyright (c) 2010 BIS3 LLC. All rights reserved. 15 Rosendo Abellera ` 508.395.1681 ` [email protected] Copyright (c) 2010 BIS3 LLC. All rights reserved. 16.