midterm exam cmp211 01fa

CMP211 Systems Design & Analysis

Mid-Term Exam

October 24, 2001

Bunker Hill Community College

Edward Lipchus, instructor

The exam is one hour. Read all questions before starting.

Multiple choice questions are indicated by a list of possible answers following the question. Each possible answer is preceded by a check box.

Some questions will require a word, descriptive phrase, or text answer. You are limited in the amount of space you have for your answer. If you run out of space, write something shorter.

Remember that Shakespeare said, "brevity is the soul of wit". All answers are to be made on this exam. Please keep written answers short. There are no essay questions.

Each question or part is worth about 3 points. Note that some questions have multiple parts. Good luck.

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Questions From Chapter 1

Question 1

SDLC means: Systems Development Life Cycle

Question 2

The following are the steps in the SDLC. Put them in the proper order.

(43152)

planning

analysis

design

implementation

operation & support

Question 3

OO means: Object Oriented

Question 4

CASE means: Computer-Aided Software Engineering

Question 5

Match who does it with what they do:

top management	strategic plans
middle management	tactical planning
lower management	day-to-day operations
operational employees	enter and receive data

Questions From Chapter 2

Question 6

Strategic Planning means: the process of identifying long-term organizational goals, strategies & resources.

Question 7

why is a mission statement important? It says what the company does.

Question 8

A Feasibility Study looks at 3 things (pick 3):

ý operational feasibility

ý technical feasibility

ý economic feasibility

¨ business strategy feasibility

¨ current inventory

Question 9

A Preliminary Investigation assesses 6 things:

scope
recommendations
fact-finding
problem
feasibility
time & cost

What is the first thing you do? State the problem

What is the last thing you do? Make a recommendation

Questions From Chapter 3

Question 10

UML means: Universal Modeling Language

Question 11

JAD means: Joint Application Development

Question 12

TCO means: Total Cost of Ownership

Question 13

Fact-finding covers the items wwww&h. What are these 5 items?

Who
What
Where
When
How

Question 14

After you conduct a fact-finding interview, there are 2 steps you must do to finish the process. What are they?

evaluate
document

Questions From Chapter 4

Question 15

A data flow diagram… (complete the sentence)

shows how data moves through a system

Question 16

This is a process symbol

Question 17

This is a data flow symbol

Question 18

This is a data store symbol

Question 19

This is an external entity symbol

Question 20

Put in the proper order (which contains which?):

data dictionary

data store

data structure

data element

Question 21

This is a … (pick one)

¦ module design chart

¦ structured English description

¥ decision table

¦ decision tree

VERIFY ORDER PROCESS
Based On:	1	2	3	4
credit status ok	Y	Y	N	N
product in stock	Y	N	Y	N
accept order		X
reject order		X	X	X

Questions From Chapter 5

Question 22

An object contains:

attributes

methods

Question 23

A class is a collection of…

Objects

Question 24

The class CAR has the following attributes:

4 wheels
engine
4 seats
steering wheel

The object Subaru is a member of class CAR and has the following attributes:

boxer engine
four-wheel drive
4 doors

Does an instance of a Subaru have a steering wheel?

¥ yes

¦ no

Question 25

Why or why not?

It inherits the steering wheel attribute from the CAR class.

Question 26

Data goes in to and out from an object by way of a

¦ dataflow

¥ message

¦ data transfer

¦ automatic door

Question 27

You are a "date" object. One person asks you for today's date and you say "10/24/01". Another person asks you the same question and you say "October 24, 2001". This is an example of

¦ redundancy

¦ duplicity

¥ polymorphism

¦ monotheism

Questions From Chapter 6

Question 28

Prototyping is:

¦ predicting user benefits

¦ making a set of recommendations

¦ drawing pictures of the user interface

¥ making a simple model that works

Question 29.

Microsoft Excel (the spreadsheet) is what type of application?

¥ horizontal

¦ vertical

Question 30

American Airline's SABRE flight reservation system is what type of application?

¦ horizontal

¥ vertical

Question 31

You can do a software system in 1 year for $1m. It will return $200,000 a year in extra revenue for your company. You can buy a system for $500,000 which will have 50% of the benefits of your system. After 5 years, would you be ahead of the game or losing money if you had purchased the outside package? By how much?

Ahead by two million dollars

Year	in-house cost	in-house revenue	in-house net	purchased cost	purchased revenue	purchased net	purchased advantage	cumulative advantage
1	1,000,000	0	-1,000,000	500,000	100,000	-400,000	600,000	600,000
2		200000	200,000		100,000	100,000	500,000	1,100,000
3		200000	200,000		100,000	100,000	400,000	1,500,000
4		200000	200,000		100,000	100,000	300,000	1,800,000
5		200000	200,000		100,000	100,000	200,000	2,000,000
6		200000	200,000		100,000	100,000	100,000	2,100,000

Question 32

In The Hitchhikers Guide to the Galaxy, "42" is the answer to the Ultimate Question. What is the Ultimate Question?

What is 7 times 5?