1. Online Analytical Processing

2. On-Line Analytical Processing (OLAP) Tools
The use of a set of graphical tools that provides users with multidimensional views of their data and allows them to analyze the data using simple windowing techniques
Relational OLAP (ROLAP)
Traditional relational representation
Multidimensional OLAP (MOLAP)
Cube structure
OLAP Operations
Cube slicing–come up with 2-D view of data
Drill-down–going from summary to more detailed views
Roll-up – the opposite direction of drill-down
Reaggregation – rearrange the order of dimensions

3. Slicing a data cube

4. Example of drill-down Summary report
Starting with summary data, users can obtain details for particular cells
Drill-down with color added

5. Excel’s Pivot Table Insert/Pivot Table or Pivot Chart Pivot Chart
Drill down, rollup and reaggregation
Filter
Pivot Chart
Drilldown, rollup, reaggregation

6. Data Visualization
Representing data in graphical/multimedia formats for analysis.
Web-based “dashboards”
Product tour
Retail sales

7. Chart

8. Charting Decision Rules
An Internet Service Provider charges customers based on hours used:
First 10 hours $15
Each of the next 20 hours $2 per hour
Hours over 30 hours $1 per hour

9. Comparing Decision Rules
Plan 2:
First 20 hours: $20
Hours over 20 $1.5
Plan 3:
$35 unlimited access.

10. Charting Functions Demand function: P = 150 – 6*Q^2 Supply function:
P = 10* Q^2 + 2*Q
Note:
Positive area
Value axis maximum/minimum value:
Format Value Axis

11. Chart Stock Market Data
Download Dow Jones Historical Data
Yahoo/Finance/Dow Jones/Historical Data
To chart:
Insert/Chart/Other Charts/Stock chart