Dody Iskandar - Tugas MK Sistem Basis Data - Chapter 6

1. Physical Database
Design and Performance
Chapter 6
MODERN DATABASE MANAGEMENT

2. Tugas MK Sistem Basis Data
 Nama : Dody Iskandar
 NIM : 59719
 Minat : SKI

3. Physical Database Design and Performance
2. Consider the composite usage map in Figure 6-1. After
a period of time, the assumptions for this usage map
have changed as follows:
a. There is an average of 40 quotations (rather than 50) for
each supplier.
b. Manufactured parts represent only 30 percent of all parts,
and purchased parts represent 75 percent.
c. The number of direct access to purchased parts increases
to 75 per hour (rather than 60).
Draw a new composite usage map reflecting this new
information to replace Figure 6-1.
Chapter 6
 Problems and Exercises (halaman 249)

4. Chapter 6
Figure 6-1 Composite usage map (Pine Valley Furniture Company)
PART
MANUFACTURED
PART
PURCHASED
PART
SUPPLIER
QUOTATION
O
2500
1000
200
40% 70%
140
700
60
75
50
70
(50)
40
40
400
80

5. Chapter 6
Figure 6-1a New Composite usage map (Pine Valley Furniture Company)
PART
MANUFACTURED
PART
PURCHASED
PART
SUPPLIER
QUOTATION
O
2000
1000
200
30% 75%
150
750
75
75
50
70
(40)
40
40
300
80
Jawab :

6. Chapter 6
Figure 6-1a New Composite usage map (Pine Valley Furniture Company)
PART
MANUFACTURED
PART
PURCHASED
PART
SUPPLIER
QUOTATION
O
2000
1000
200
30% 75%
150
750
75
75
50
70
(40)
40
40
300
80
Jawab :