Systems analysis exam online essay editor

INSTRUCTIONS:

• Answers must be neatly typed using MS-Word. Hand-written answers will not be

graded. Mathematical symbols may be typed, handwritten or expressed in equivalent

words.

• Diagrams must be drawn using any software of your choice. Hand-drawn diagrams will

be graded with a 20% penalty.

• You MUST submit (CONSOLIDATE all answers into) one MS-Word file. Multiple files

are not acceptable and will not be graded. Zip files will not be graded. Despite repeated

requests/instructions to submit file in MS-Word format, if you submit the final exam in

pdf format, I will deduct 15% points as penalty.

• ANSWER ALL QUESTIONS. Be sure to read the question carefully, and ensure that

you answer to all parts of the question. Note that this is a comprehensive exam (questions

may be asked from any and all material covered during the term).

• Please show all applicable calculations. Points will be deducted if all calculations are

not shown.

Probems:

 

3. Weare-businessminded Company has asked for your help in comparing its present computer

system with a new one its board of directors would like to see implemented. Proposed

system costs and present system costs are as follows:

Item Proposed System Costs Present System Costs

Year 1

Equipment Lease $20,000 $11,500

Salaries $30,000 $50,000

Overhead $4000 $3000

Development $30,000 $0

Year 2

Equipment Lease $20,000 $10,500

Salaries $33,000 $55,000

Overhead $4400 $3300

Development $12,000 $0

Year 3

Equipment Lease $20,000 $10,500

Salaries $36,000 $60,000

Overhead $4900 $3600

Development $0 $0

Year 4

Equipment Lease $20,000 $10,500

Salaries $39,000 $66,000

Overhead $5500 $4000

Development $0 $0

The following are the proposed system benefits:

Year Benefits

Year 1 $55,000

Year 2 $75,000

Year 3 $80,000

Year 4 $85,000

(3a) Using Break-Even Analysis, determine the year in which Weare-businessminded Company

will break even. Graph the costs and show the break-even point graphically. Explain the

significance of this break-even point.

(3b) Determine the payback period using the manual/table method. Page 3 of 4

(3c) Graph the benefits versus the costs and show the payback period on the graph.

(35 Points)

4. At MoneyMinded Company, the maintenance department, the clerical support department,

and the shipping/receiving department are involved with adding/installing new computers

including laptops and servers. Some of the employees, but not all of them will require

installation of desktop computers. The shipping/receiving department, the clerical support

department, and the software user are all involved in adding software. The clerical support

department is also involved with producing hardware investment reports. Show the above

on a Use Case Diagram. List the “actors” and the “actions”. Also draw a Use Case Scenario

(Use Case Scenario must be in a table format as shown in your textbook). (20+2+8=30

Points)

5. Premium Airlines has recently offered to settle claims for a class-action lawsuit, which was

originated for alleged price fixing of tickets. The proposed settlement is stated as follows:

Initially, Premium Airlines will make available to the settlement class a main fund of $25

million in coupons. If the number of valid claims submitted is 1.25 million or fewer, the value

of each claim will be the result obtained by dividing $25 million by the total number of valid

claims submitted. For example, if there are 500,000 valid claims, each person submitting a

valid claim will receive a coupon with a value of $50. The denomination of each coupon

distributed will be in a whole dollar amount not to exceed $50. Thus, if there are fewer than

500,000 valid claims, the value of each claim will be divided among two coupons or more.

For example, if there are 250,000 valid claims, each person submitting a valid claim will

receive two coupons, each having a face value of $50, for a total coupon value of $100. If

the number of valid claims submitted is between 1.25 and 1.5 million, Premium Airlines will

make available a supplemental fund of coupons, with a potential value of $5 million. The

supplemental fund will be made available to the extent necessary to provide one $20

coupon for each valid claim. If there are more than 1.5 million  valid claims, the total amount

of the main fund and the supplemental fund, $30 million, will be divided evenly to produce

one coupon for each valid claim. The value of each such coupon will be $30 million divided

by the total number of valid claims. Express the above decision rules using STRUCTURED

ENGLISH. (30 Points)

6. Structured decision making is required with respect to the batch update of the COMPUTER

MASTER file in an organization, which can be described as follows. There are three types of

updates: ADD, DELETE, and CHANGE. The COMPUTER MASTER record must be read. If the

transaction is an ADD and the master is not found, format and write the new COMPUTER

MASTER record. Print a valid transaction line on an UPDATE REPORT. For a CHANGE or

DELETE transaction, print a CHANGE ERROR LINE or a DELETE ERROR LINE if the COMPUTER

MASTER record is not found. If the COMPUTER MASTER record is found, check the active

code. If the record is inactive and the transaction is an ADD, format and rewrite the new

COMPUTER MASTER record. Print a valid transaction line on an UPDATE REPORT. For a

CHANGE or DELETE transaction, print a CHANGE ERROR LINE or a DELETE ERROR LINE. For a

DELETE transaction, if the COMPUTER MASTER record is found and the code is inactive, in

addition to other rules, also select DELETE COMPUTER RECORD. If the COMPUTER MASTER

record is active and the transaction is an ADD, print an ADD ERROR LINE. For a CHANGE

transaction, format the changes and rewrite the COMPUTER MASTER record. Print the

VALID TRANSACTION LINE. For a DELETE transaction, CHANGE COMPUTER RECORD and

rewrite the COMPUTER MASTER record. Print the VALID TRANSACTION LINE.

(6a) Create a decision table for the above situation. (35 Points)

(6b) Create a decision tree for the above situation (17 Points).

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