1. CHAPTER 6

a. Figure 6-10, p. 170: "Bank" external entity should not have slash in lower right corner.

b. Figure 6-11, p. 170:

(1) "New Tenant Process" should be "New Rental Process."

(2) "Tenant" external entities should have a slash in lower right corner.

c. Figure 6-12, p. 171:

(1) Process 2.1 should be connected to Process 2.2 by a data flow "card."

(2) "Tenant" external entities should have a slash in the lower right corner.

2. CASE 6.1

a. Figure 6.1-3, p. 191: Add "Delinquent Letter" dataflow from Process 0 to "Customer" external entity.

b. Figure 6.1-5, p. 193: "Create Customer Account" is Process 1.1; "Generate Member Card" is Process 1.2.

c. Figure 6.1-6, p. 193: Process numbers should be 1.2.1 through 1.2.3.

d. Figure 6.1-7, p. 193: Process numbers should be 1.1.1 through 1.1.3.

e. Figures 6.1-15 and 6.1-16, p. 199: There should be no lower portion of process boxes (e.g., "Cashier").

f. Figures 6.1-17 and 6.1-18, p. 200: There should be no lower portion of process boxes (e.g., "Cashier").

 

3. CHAPTER 8

a. Figure 8-15, p. 275: 

 

b. Figure 8-20, p. 277: Table should be:

System Costs*	End-Of-Year Period
	1	2	3	4	5
Current	271	291	320	358	411
New	471 †	330 ‡	116	123	130
Difference	-200	-39	+204	+235	+281
Cumulative Difference	-200	-239	-35	+200	+481
* Thousand of dollars. † Two-third development costs ($200) plus current operating costs ($271). ‡ One-third development costs ($100), two-thirds year current system costs ($194), plus one-third year new system operating costs ($36).

c. Page 277, "Breakeven Analysis . . . ." The new system will start making a profit in:

d. Page 278, "Payback Period Analysis . . . ." It will take

for the system to recover its development costs.

 

e. Figure 8-23, p. 279: Table should be:

System Costs*	End-Of-Year Period
	1	2	3	4	5
Current	271	291	320	358	411
New	471	330	116	123	130
Difference (Figure 8-20)	-200	-39	+204	+235	+281
Discount [ROI = .2]	.83	.69	.58	.48	.40
Discounted Difference	-166	-27	+118	+113	+112
Cumulative Discounted Difference	-166	-193	-75	+38	+150
* Thousand of dollars.

f. Page 278, "Discounted Payback Period Analysis," second sentence: Replace with the following:

Using present-value calculations, the payback period is increased from 3.14 to

Now the information manager of Fortyne Dairy can present to the management the following cost comparisons of the proposed new system versus the current system

Breakeven Years = 2.16 Years

Payback Period = 3.14 Years

Discounted Payback Period = 3.67 Years

Management will accept the proposal for the new system unless some other organization alternative (e.g., new product development) shows statistics that promises quicker payback.

 

4. CHAPTER 11

Figure 11-4, p. 353: Beginning of specification should read:

CUSTOMER_ORDER = CUSTOMER_FNAME+
= CUSTOMER_LNA