1. ISQS 3358, Business Intelligence Database vs. Data Warehouse
Zhangxi Lin
Texas Tech University 1 1

2. Agenda Set up and configure Citrix receiver
Follow instructions in Citrix1, Citrix2
Access the shared network drive
For MacBook:
For Windows: Map to \\Techshare\coba\d\isqs3358
Create a database using WPC scripts
\\Techshare\coba\d\isqs3358\isqs3348\Exercises\DBC-e07- WPC-Scripts
Convert WPC database to data warehouse

3. Download file http://zlin. ba. ttu. edu/3358/WPCExercises
Download file for the exercises
Database case

4. Wedgewood Pacific Corporation

5. Wedgewood Pacific Corporation

6. Incapability of database
How could I analyze the performance between departments regarding workload and employee numbers?
How could I do online prediction of future projects trend according to current projects?
If the database contains 100 million records how could the response time become acceptable?

7. Data warehousing

8. Data Mart Planning Fact table – collections of measures
Measures: MaxHours, HoursWorked
Dimension tables
Time: StartDate, EndDate
Project
Employee
Department

9. Dimensional Model DIM_PROJECT ---------------------- DIM_DEPSRTMENT
ProjectID
ProjectName
Department
MaxHours
StartDate
EndDate ……
DIM_DEPSRTMENT
DepartmentName
BudgetCode
OfficeNumber
Phone
PROJ_ASSIGN
EmployeeNumber
ProjectID
HoursWorked
StartDate
EndDate
DIM_EMPLOYEE
EmployeeNumber
FirstName
LastName
Department
Phone
DIM_TIME
Year
Quarter
Month
Week
Date

10. Data Mart Design Fact Table Dimension Tables
PROJ_ASSIGN (ProjectID, EmployeeNumber, HoursWorked, StartDate, EndDate)
Dimension Tables
TIME(Year-Quarter-Month-Date)
PROJECT(ProjectID, ProjectName, Department, MaxHours)
DEPARTMENT(DepartmentName, BudgetCode, OfficeNumber, Phone)
EMPLOYEE(EmployeeNumber, FirstName, LastName, Department, Phone, )

11. Data Mart Design – Scheme 2
Fact Table
PROJect (ProjectID, ProjectName, Department, MaxHours, StartDate, EndDate)
Dimension Tables
TIME(Year-Quarter-Month-Date)
DEPARTMENT(DepartmentName, BudgetCode, OfficeNumber, Phone)
This is a simplified model from the previous