1. Novice User
Application 1
Data
DBMS
Novice User
Application 2
Novice User
Application 3
DB User

2. Payroll Clerk Payroll Data DBMS General Ledger AP Clerk
Business Manager
General Ledger
AP Clerk
Accounts Payable
IT Department

3. Users perception of the data
User 1 view
User 3 view
User 2 view
Conceptual Schema
Users perception of the data
Internal Schema
How is data stored
Data
Data
Data

4. Database
Table 2
Control
Table 1
Master
Table 3
Transaction

5. Database Table 2 Schema States (Abbreviation, Description) Table 2
Control
Table 1 Schema
Person (Id, Last, First, Middle, State, DOB)
Table 3 Schema
Classes(Id, Subject, Number, Grade)
Table 1
Master
Table 3
Transaction

6. Database State Control Student Master Course Transaction 123456 Molly
Smith
Jane VA
10/04/1995
Taylor
Jones R MD
09/30/1994
55684
Mark
Twain E NJ
10/25/1992

7. Database - terms State Control Course Transaction VA Virginia MD
Maryland NJ
New Jersy
123456 CS
474 A
WRTC
250 B+
55684
139
123456
Molly
Smith
Jane VA
10/04/1995
Taylor
Jones R MD
09/30/1994
55684
Mark
Twain E NJ
10/25/1992
Student
Master

8. Database - terms State Control Course Transaction VA Virginia MD
Maryland NJ
New Jersy
123456 CS
474 A
WRTC
250 B+
55684
139
123456
Molly
Smith
Jane VA
10/04/1995
Taylor
Jones R MD
09/30/1994
55684
Mark
Twain E NJ
10/25/1992
Student
Master