9 Analytical Capabilities

What Is Business Intelligence? “Business Intelligence is the process of gathering meaningful information about the subject matter being researched. ” — Jonathan Wu

Evolution to BI Executive information systems (EIS) Decision support systems (DSS) Business intelligence (BI) EIS DSS BI

Categories of Business Intelligence Tools Reporting tools and query tools for data access Data mining OLAP

Query Tools Query scheduling: Manages information usage Directs queries Executes queries Sets job queue priorities Query monitoring: Tracks resource- intensive queries Detects unused queries Catches queries that use summary data inefficiently Catches queries that perform regular summary calculations at the time of query execution Detects illegal access

Multidimensional Query Techniques Slicing Product Time Geography Dicing Drilling down What? Why?

Multidimensional Query Techniques Drilling across What? Why? Drilling up Pivoting

Base Table The Base table is the original detail data. CategoryGroupYearQuarterQuantity ClothesEclipse Clothing ClothesEclipse Clothing ClothesEclipse Clothing ClothesEclipse Clothing ClothesGreen Tomato ClothesGreen Tomato ClothesGreen Tomato ClothesGreen Tomato ShoesEclipse Shoes ShoesEclipse Shoes ShoesEclipse Shoes ShoesEclipse Shoes ShoesTracker Shoes ShoesTracker Shoes ShoesTracker Shoes ShoesTracker Shoes

CategoryGroupYearQuantity ClothesEclipse Clothing ClothesGreen Tomato ShoesEclipse Shoes ShoesTracker Shoes CategoryGroupYearQuarterQuantity ClothesEclipse Clothing ClothesEclipse Clothing ClothesEclipse Clothing ClothesEclipse Clothing ClothesGreen Tomato ClothesGreen Tomato ClothesGreen Tomato ClothesGreen Tomato ShoesEclipse Shoes ShoesEclipse Shoes ShoesEclipse Shoes ShoesEclipse Shoes ShoesTracker Shoes ShoesTracker Shoes ShoesTracker Shoes ShoesTracker Shoes Aggregation An aggregation is the summarization of one or more levels....

OLAP Cube A OLAP cube contains summarized information. Aggregations OLAP Cube

Preparation is the Key Building an OLAP cube requires understanding the business needs. One of the key points to consider is deciding the balance between reporting response and storage space. + Faster Reporting Speed - Higher Disk Space Usage - Slower Cube Build Time Many Aggregations + Lower Disk Space Usage - Slower Reporting Speed + Faster Cube Build Time Few Aggregations

Data Mining Tools Enable proactive business decisions Refer to a process rather than a technology Assist with BI decisions by: –Preventing customer attrition –Stimulating cross-selling –Stimulating acquisition of new customers –Detecting fraud –Providing accurate customer profiles

OLAP Tools Provide the ability to perform: Intensive data analysis by seamlessly drilling or pivoting Clickstream analysis if Web-enabled Complex calculations

OLAP Storage Relational database Multidimensional database Client-based files

OLAP Models Relational (ROLAP) Multidimensional (MOLAP) Hybrid (HOLAP)

Web-Enabling the Data Warehouse Provides information and competitive advantage Shares ownership of data Collects information Makes deployment easier Supports an Intelligent Webhouse Improved ROI

Challenges of Web-Enabling the Data Warehouse Security Impact assessment on the infrastructure Integration Clickstream analysis

Security Issues in Deploying the Web-Enabled Data Warehouse Subject area sponsors: –Review and authorize access requests –Identify enhancements Transparent security or unobtrusive security Should be easy to implement, maintain, and manage Authentication