Introduction to Business Intelligence
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The document discusses business intelligence and the decision making process. It defines business intelligence as using technology to gather, store, access and analyze data to help users make better decisions. This includes applications like decision support systems, reporting, online analytical processing, and data mining. It also discusses key concepts like data warehousing, OLTP vs OLAP, and the different layers of business intelligence including the presentation, data warehouse, and source layers.
Introduction to Business Intelligence
- 1. Business Intelligence By Almog Ramrajkar
- 2. The Decision Making Process
- 3. Decision Making Basics Problem Identification Finding Alternativ es Making a Choice “Information and knowledge form the backbone of the decision making process”
- 4. Decision Action Cycle User Applies Intelligence to Data To Produce Information This forms the basis of Knowledge Knowledge is used in decision making Decisions trigger Actions Actions in turn generate more data
- 5. Who Makes Decisions? Decision making at differentlevels: – Operational • Related to daily activities with short-term effect • Structured decisions taken by lower management – Tactical • Semi-structured decisions taken by middle management – Strategic • Long-termeffect • Unstructured decisions taken by top management Strategic Tactical Operational
- 6. Introduction to Business Intelligence
- 7. What is Business Intelligence Technology that Allows: • Gathering, storing, accessing & analyzing data to help business users make better decisions Set of Applications that Allow: • Decision support systems • Query and reporting • online analytical processing (OLAP) • Statistical analysis, forecasting, and data mining Help in analyzing business performance through data-driven insight: • Understand the past & predict the future
- 8. Business Intelligence Example •Add a Product Line •Change a Product PriceProduct Database •Change Advertising Timetable •Increase Radio Advertising Budget Advertising Database •Increase Customer Credit Limit •Change Salary Level Consumer Demographic Database How Many Products Sold Due to TV Ads Last Month If Inventory Levels Drop by 10%; will Customers Shop Elsewhere? Which Customer Demographic is Performing Best for Product ‘A’ Data Warehouse Information Driven by Online Transaction Processing Business Intelligence Driven by Analytical Processing
- 9. Business Intelligence Process Decisions Data Presentation & Visualization Data Mining Data Exploration (Statistical Analysis, Querying, reporting etc.) Data Warehouse Data Sources Data Sources (Paper, Files, Information Providers, Database Systems) Decision Making “Every Level Helps Increase the Potentialto Support Business Decisions”
- 11. Data Warehouse A decisionsupport database that is maintained separately from the organization’s operationaldatabase A consistentdatabase source that bring together information from multiple sources for decision support queries Support information processing by providing a solid platform of consolidated, historical data for analysis“Data warehousing is the process of constructing and using data warehouses” A Data Warehouse Can be Defined as:
- 12. OLTP – Online Transaction Processing • Online transaction processing, or OLTP, is a class of information systems that facilitate and manage transaction-oriented applications, typically for data entry and retrieval transaction processing • Online transaction processing increasingly requires support for transactions that span a network and may include more than one company. For this reason, new online transaction processing software uses client or server processing and brokering software that allows transactions to run on different computer platforms in a network. •Reduces paper trails •Simple & effective •Highly accurate Advantages •Needs technicalresources •Needs maintenance •Costly Disadvantages
- 13. OLAP – Online Analytical Processing • Online analytical processing, or OLAP is an approach to answering multi-dimensional analytical (MDA) queries swiftly • OLAP tools enable users to analyse multidimensional data interactively from multiple perspectives. OLAP consists of three basic analytical operations: consolidation (roll-up), drill-down, and slicing and dicing. Consolidation involves the aggregation of data that can be accumulated and computed in one or more dimensions. Types of OLAP Multidimensional Relational Hybrid
- 14. OLAP Vs. OLTP OLTP OLAP User Clerk/IT professional Knowledge Worker Function Day to Day Operations Decision Support Database Design Application Oriented Subject Oriented Data Current, Isolated Historical, Consolidated View Detailed, Flat Relational Summarized, Multidimensional Usage Structured, Repetitive Ad Hoc Access Read/Write Read
- 15. Data Mining & it’s Process • Data Mining is the computational process of discovering patterns in large data sets involving methods at the intersection of artificial intelligence, machine learning, statistics, and database systems. • Before data mining algorithms can be used, a target data set must be assembled Pre Processing •Involves Anomaly Detection •Clustering •Classification •Regression •Summarization Data Mining •The final step of knowledge discovery from data is to verify that the patterns produced by the data mining algorithms occur in the wider data set Result Validation
- 16. Layers of Business Intelligence
- 17. Business Intelligence Layers Presentation Layer Data Warehouse Layer Source Layer Reporting Analysis Dara Warehouse Finance Dept. HR Dept. CRM OS Excel
- 18. Thank You