Business process modeling and analysis for data warehouse design
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The document discusses business process modeling and analysis for data warehouse design. It provides an overview of key concepts like business intelligence, business processes, dimensional modeling and ETL. The document presents examples of modeling dimensions, hierarchies and fact tables to design a dimensional schema for a reseller sales scenario. It also shows examples of identifying business processes and mapping them to the dimensional model for analysis in a data warehouse.
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Business process modeling and analysis for data warehouse design
- 1. Business Process Modeling and Analysis for Data Warehouse Design
- 2. Slava Kokaev Lead Business Intelligence Architect at Lockheed Martin Email: [email protected] Twitter: @SlavaKokaev
- 3. Agenda Model and Analyze Business Processes Design Dimensional Model Dimensional Model Physical Implementation
- 4. Tools And Technologies Microsoft SQL Server 2014 UML IDEF0 Notation SADT Methodology
- 5. What is Business Intelligence? Business intelligence is a set of theories, methodologies, processes, architectures, and technologies that transform raw data into meaningful and useful information for business purposes.
- 6. Business Intelligence Goal To optimize organizational Key Business Processes and Operations by providing critical to business Information at Right Time and Right Format to all levels of employees.
- 7. System Definition System is a group or set of functional elements that interact together to produce desired result or achieve a goal We scope a system by defining its boundary; this means choosing which entities are inside the system and which are outside – part of the environment. Element 1 Element 2 Element 3 Element 5 Element 6 Element 7
- 8. System Process A system can also be viewed as a bounded transformation process, that is, a process or collection of processes that transforms inputs into outputs. Inputs are consumed; outputs are produced. Process
- 9. System Formation System is a set of detailed methods, procedures and routines created to carry out a specific activity, perform a duty, or solve a problem. Identify Problem Set Goal and Result Define Mechanis m Perform Task Analyze Result Improve Process
- 10. Business Process Batch processing Architecture Scheduled Large dataset size A business process is a collection of related, structured activities or tasks that produce a specific service or product (result) (serve a particular goal) for a particular customer or customers. There is two types of business processes: key processes and supportive processes. Key Business process is a process that adds value to the product Supportive process adds value to the process itself, but not to the product
- 12. Enterprise Business Analytics System Customers Business Partners Vendors, Suppliers Monitoring Systems Analysis Systems Business Processes and Operations Controlling Systems Strategy and Planning Systems Service Providers
- 13. Business Conceptual Framework Reseller Sales Amy Jack Mo Shipping Dept. Sales Quota $1000 Manager Order Date Order # Reseller Sales Person Ship Date Product Price 06/17/2010 E223084 Jack Yo Amy Valdez 06/18/2010 Mountain Bike -200
- 14. Data Sources Customer Web App Order Cloud Web Service FTP Server Database Server
- 15. Data Sources Customer Web App Order Cloud Web Service FTP Server Database Server ETL
- 16. ETL Web Service FTP Server Database Server Extract, Transform, Load ET L Data Warehouse
- 17. ETL Extract, Transform, Load Web Service FTP Server Database Server ET L Data Warehouse Data Warehouse
- 18. Data Warehouse Data Warehouse OLAP Cube Data Mining Structure
- 19. Data Presentation Warehouse Data Warehouse OLAP Cube Data Mining Structure
- 20. Data Presentation OLAP Cube Data Mining Structure SharePoint Server Custom Application Dashboard s Clients Business Logic Power User
- 21. Use Case Reseller Sales Amy Jack Mo Night Freight Sales Quota $1000 Manager Order Date Order # Reseller Sales Person Ship Date Product 06/17/2010 E223084 Jack Yo Amy Valdez 06/18/2010 Mountain Bike -200
- 22. Identifying System Boundary Reseller Sales Mager Sales Person Shipping Person Browse Product Catalog Get Product Quotes Order Product Receive Product Analyze Sales Create Sales Plan Sale Product Process Order Package Product Ship the Product Get Processed Order Source System Create KPI Business Intelligence System
- 23. Business Process Business Activity
- 24. Functional Structure (PDCA Model) Plan Act Check Do Data Mining SQL Server Reporting Services Analysis Services Input Data Resources Plans, Business Rules Result Data Process Output (Facts /Measures) Feedback (Improvement)
- 25. Sales Business Process Plan Sales Analyze Sales Sales corrections and Improvement Monitor Sales Sale Product Sales Representative Sales Manager Analysis Data Reseller Info (Dimension) Sales Quota Sales Result Order Info (Facts /Measures) Sales Summary Balance Scorecards Product Info (Dimension) Sales Transaction KPI
- 26. Designing Dimensional Model DimFaencstion
- 27. Designing Dimensions Reseller Name Address Phone Business Type Product Line Jack Yo …, NJ, USA (555)333-7777 Retailer Bikes
- 28. Designing Dimensions Hierarchy Product Name Category Sub Category Color Price Mountain Bike 200 Bike Mountain Bike Black $150.00 Name Category Sub Category
- 30. Hierarchies A dimension hierarchy is a collection of logically structured levels based on attributes.
- 31. Surrogate Keys Primary key purpose Identifies uniqueness Relates to foreign keys in a fact table Consolidates multiple data sources Consolidates multi-value business keys Allows tracking of dimension history Product Product ID Category Sub Category Name Price Color DimProduct Product Key Product ID Category Sub Category Name Price Color 1 MB124677 Bike Mountain Bike Mountain Bike - 200 Black $150.00
- 32. Designing Dimensional Model DimEmployee FactResellerSales Measures Order Date Reseller DateSK 8122013 8/12/2013 DateSK 8122013 Full Name Amy Valdes EmployeeSK 5 Full Name John Doe ResellerSK 20 ProductName Bike-200, Mnt, B ProductS K 555 Date Sales Person Product Price Order Qty 8/12/2013 Amy Valdes John Doe Bike-200, Mnt, B $150.00 20 Shipping Date 9/3/2013 DimDate DateSK 932013 EmployeeS K5 DimReseller ResellerSK 20 DimProduct ProductSK 555 9/3/2013 932013
- 33. This is the End of the Slides But not the end of the presentation
Editor's Notes
- #27: The dimensions reflect the business processes (functional structure) and measures reflect numeric data flow , A dimensional model is made up a central fact table (or tables) and its associated dimensions. The dimensional model is also called a star schema because it looks like a star with the fact table in the middle and the dimensions serving as the points on the star. From a relational data modeling perspective, the dimensional model consists of a normalized fact table with denormalized dimension tables.
- #28: Dimensions are the foundation of the dimensional model, describing the objects of the business, such as employee, product, customer, service. They describe the surrounding measurement events. The business processes (facts) or actions of the business in which the dimensions participate. Each dimension table links to all the business processes in which it participates.
- #29: Dimensions are the foundation of the dimensional model, describing the objects of the business, such as employee, product, customer, service. They describe the surrounding measurement events. The business processes (facts) or actions of the business in which the dimensions participate. Each dimension table links to all the business processes in which it participates.
- #32: A surrogate key is a unique value, usually an integer, assigned to each row in the dimension. This surrogate key becomes the primary key of the dimension table and is used to join the dimension to the associated foreign key field in the fact table. Surrogate keys protect the DW/BI system from changes in the source system. Surrogate keys allow the DW/BI system to integrate data from multiple source systems. Different source systems might keep data on the same customers or products, but with different keys. Surrogate keys enable you to add rows to dimensions that do not exist in the source system. Surrogate keys provide the means for tracking changes in dimension attributes over time