Answers)

Exam (CH 10)

Name___________________________________

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.

1) Once systems analysts, users, and management have a grasp of what kinds of tasks must beaccomplished, hardware options can be considered.

1)

2) Analysts need to oversee the evaluation process personally because they will have the best interestsof the business at heart.

2)

3) Workloads can be simulated and run only on the same systems. 3)

4) One of the criteria used to evaluate the performance of different systems hardware is the idle timeof the central processing unit.

4)

5) One of the main determinants used to decide whether or not to buy a computer is the projectedspeed of the system.

5)

6) If the system will be used longer than four to five years, the decision is usually made to lease. 6)

7) The cost of leasing or renting is lower than that of purchase after six years. 7)

8) As systems become smaller and distributed systems become increasingly popular, more businessesare deciding to purchase equipment.

8)

9) Fortunately, evaluating computer hardware is as straightforward as simply comparing costs andchoosing the lease expensive one.

9)

10) An advantage of creating your own software is the ability to respond to specialized business needs. 10)

11) COTS software should be used when the organization is attempting to gain a competitiveadvantage through the leveraged use of information systems.

11)

12) A disadvantage of using an application service provider is that there are concerns over theirfinancial viability.

12)

13) The Analytic Hierarchy Processing process requires decision makers to make judgments regardingthe relative importance of each criteria.

13)

14) Analytic Hierarchy Processing requires the analyst to quantify the attributes. 14)

15) With Analytic Hierarchy Processing, a higher number is assigned to a lower preference. 15)

16) A recommendation system depends on numeric weights. 16)

17) Costs and benefits of the proposed computer system must always be considered together becausethey are interrelated and often interdependent.

17)

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18) The main condition for choosing a forecasting model is the availability of historical data. 18)

19) The simplest way to identify a trend and forecast future trends is by graphical judgment. 19)

20) The simplest way to identify a trend and forecast future trends is by the method of movingaverages.

20)

21) The moving average method is useful because some seasonal, cyclical, or random patterns may besmoothed.

21)

22) Intangible benefits accrue to the organization from use of the information system. 22)

23) Tangible benefits can actually be measured in terms of dollars, resources, or time saved. 23)

24) A system built solely for its intangible benefits is usually successful. 24)

25) An example of an intangible cost is losing a competitive edge. 25)

26) Cashflow analysis is useful when a business is growing and volume is a key variable in costs. 26)

27) Cashflow analysis examines the direction, size, and pattern of cash flow that is associated with theproposed information systems.

27)

28) Use present value when the payback period is long, or when the cost of borrowing money is high. 28)

29) Use break-even analysis when the improved tangible benefits form a convincing argument for theproposed system.

29)

30) We should use the most appropriate analysis rather than multiple analysis. 30)

31) The closer the decision makers' initial identification with and acceptance of the proposed system,the greater the likelihood of its continued use and acceptance once the system is in place.

31)

32) Executive summaries should list the people who did the study. 32)

33) The cover letter includes only the name of the project and the names of the systems analysis teammembers.

33)

34) The title page should include the systems analysis team member names and the date the proposal issubmitted.

34)

35) If the proposal is very short, omit the executive summary since it is superfluous on such a shortdocument.

35)

36) Any questionnaires, interviews, sampling of archival data, and observation used in the systemsstudy should be discussed in the section "outline of systems study."

36)

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37) The outline of the systems study details what the systems analyst has learned about the human andsystem needs.

37)

38) In the system alternatives section, the analyst presents two or three alternative solutions. 38)

39) The systems analysts' recommendations section expresses the recommended solution. 39)

40) Once the systems proposal is written, hand the report to everyone in your organization. 40)

41) Column charts are used primarily to show one variable changing over time. 41)

42) Column charts are easier to understand than line graphs. 42)

43) A 100 percent stacked column chart may be organized in alphabetical, numerical, geographical, orprogressive order.

43)

44) A 100 percent stacked column chart is easier to read than pie charts. 44)

45) Pie charts illustrate how 100 percent of a commodity is divided at a particular point in time. 45)

46) In order to overcome anxiety, the presenter should be himself, be prepared, memorize the talk, andbreathe rapidly to keep a good supply of oxygen before his or her presentation.

46)

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

47) Information needs of users drive the following selection except: 47)A) systems analysts. B) data storage media.C) computer hardware. D) any commercial off-the-shelf software.

48) Which order of step is correct for the systems analyst to take in ascertaining hardware and softwareneeds?I. An evaluation of available hardware and software is undertaken.II. All correct computer hardware must be inventoried to discover what is on hand and what isusable.III. Current and future system workloads must be estimated.

48)

A) II - III - I B) II - I - III C) I - III - II D) I - II - III

49) The systems analyst needs to know all except: 49)A) depreciation of equipment. B) type of equipment.C) physical location of equipment. D) estimated age of equipment.

50) Hardware options can be considered only when __________ has a good grasp of what kinds oftasks must be accomplished:

50)

A) users B) systems analystsC) managers D) all of the above

51) What is the technique that allows workloads to be simulated and run on different systems,including those already used in the organization?

51)

A) evaluation B) comparison C) benchmarking D) simulation

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52) Which is not a criteria that systems analysts and users should use to evaluate performance ofdifferent systems hardware?

52)

A) time required for average transactions B) idle time of the central processing unitC) quality of memory provided D) total volume capacity of the system

53) Which is not the most influential factor to consider in deciding which option is best for obtainingcomputer hardware for a particular installation?

53)

A) initial versus long-term costsB) whether the business desires full control of computer equipmentC) whether the business desires efficiency for the computer equipmentD) whether the business can afford to tie up capital in computer equipment

54) One of the main determinants of whether to buy equipment is: 54)A) the processing speed. B) the capacity for expansion.C) the projected life of the system. D) the cost.

55) Which is not included as support services available to a business from a vendor? 55)A) offsite group seminars for usersB) specified response time in case of emergency equipment breakdownsC) routine and preventive maintenance of hardwareD) loan of equipment in the event that software must be permanently replaced

56) Which of the following is not a disadvantage of using an application service provider? 56)A) Loss of potential strategic advantage.B) Loss of control of data systems.C) Security, confidentiality, and privacy concerns.D) Ongoing maintenance.

57) Which is not a primary category on which to grade software? 57)A) performance effectivenessB) ease of useC) manufacturer supportD) flexibilityE) free updates

58) Training the neural net involves: 58)A) comparing two alternatives at the same time.B) letting software get feedback on the decisions, observing what was involved in successful

decisions.C) collaborative filtering.D) performing sensitivity analysis.

59) Which is not a human component of decision making when using neural nets? 59)A) knowledge acquisition B) problem identificationC) pairwise comparison D) sensitivity analysis

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60) Which is not an example of intangible benefits? 60)A) increasing processing speedB) improving the decision-making processC) maintaining a good business imageD) becoming more competitive in customer serviceE) enhancing accuracy

61) The main condition for choosing a forecasting model is: 61)A) the graphs that already exist.B) the availability of historical data.C) the relationships that are apparent in the data.D) the amount of numerical data that may be created for analysis.

62) The simplest way to identify a trend and forecast future trends is: 62)A) by doing the method of least squares.B) by using the moving averages method.C) by using an intangible cost benefit analysisD) by graphing and estimating an extension of the curve.

63) The disadvantage of using a graphical judgment is: 63)A) it may represent a too simplistic view of the data.B) the difficulty extrapolating exponential data to any degree of accuracy.C) the confusion when the graphs are cyclical.D) that the curve may depend too much on individual judgment.

64) The objective in estimating a trend using the least squares method is: 64)A) to calculate the squares that fit under the curve for linear analysis.B) to show the trend when random patterns occur.C) to smooth out any cyclical variations in the data.D) to find the best fitting line.

65) The method that is used when some seasonal, cyclical, or random pattern may be smoothed out is: 65)A) graphical analysis. B) intangible cost benefit analysis.C) moving averages. D) least squares.

66) One of the tangible benefits is: 66)A) improving the decision-making process. B) enhancing accuracy.C) increase in the speed of processing. D) maintaining a good business image.

67) Intangible benefits include: 67)A) access to otherwise inaccessible information.B) enhancing accuracy.C) access to information on a more timely basis than was possible before.D) decreases in the amount of employee time needed to complete specific tasks.

68) Tangible costs include: 68)A) ineffective decision making due to untimely or inaccurate information.B) declining company image due to increases customer dissatisfaction.C) the cost of losing a competitive edge.D) the cost of system analysts' time.

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69) Which is not an intangible cost? 69)A) cost of systems analysts' timeB) losing a competitive edgeC) declining company image due to increased customer dissatisfactionD) losing the reputation for being first with an innovation

70) Which is not a technique for comparing the costs and benefits of the proposed system? 70)A) break-even analysisB) paybackC) post-predictive valueD) present valueE) cashflow analysis

71) The method used to compare costs and benefits when a business is growing and volume is a keyvariable in costs is:

71)

A) cashflow B) present valueC) break-even analysis D) payback

72) The method that compares today's costs with future costs and today's benefits with future benefitsis:

72)

A) payback B) break-even analysisC) cashflow analysis D) present value

73) When the project is expensive relative to the size of the company, which analysis should be used? 73)A) payback B) break-even C) present value D) cashflow

74) Which is the correct order for the contents of the systems proposal?I. table of contentsII. summaryIII. systems analysts' recommendationsIV. detailed results of systems study

74)

A) I - III - IV - IIB) I - III - II - IVC) III - I - IV - IID) III - I - II - IVE) I - IV - III - II

75) The system proposal appendices do not include: 75)A) correspondence. B) alternatives.C) summary of phases. D) assorted documentation.

76) What provides the who, what, when, where, why, and how of the system proposal? 76)A) summary B) executive summaryC) outline of systems study D) systems alternatives

77) What system proposal document provides information about all of the methods used in the study? 77)A) outline of systems study B) executive summaryC) detailed results of systems study D) summary

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78) The outline of the systems study section doesn't include a discussion of: 78)A) observations used in the systems study.B) questionnaires.C) sampling of archival data.D) interviews.E) conclusions.

79) Which system proposal document mirrors the content of the executive summary, giving objectivesand the recommended solution?

79)

A) systems analysts' recommendations B) proposal summaryC) detailed results of systems study D) appendices

80) Which section of the system proposal includes information that the systems analyst feels may be ofinterest to specific individuals?

80)

A) appendices B) executive summaryC) systems analysts' recommendations D) detailed results of systems study

81) Which of the following is not used to capture and communicate the basics of the system proposal? 81)A) graphs B) words C) metaphor D) tables

82) Which is not a guideline for tables in the proposal? 82)A) Try to fit the entire table vertically.B) Use a boxed table if room permits.C) Number and title the table at the top of the page.D) Use one row for a title.E) Use footnotes to explain detailed table information.

83) Which guideline isn't correct for including effective graphs in a proposal? 83)A) Choose a style that communicates the intended meaning.B) Collect graphs together in the appendices.C) Include a key to indicate different colored lines, shaded bars, or crosshatched areas.D) Give the graph a sequential figure number.E) Label each axis, and any lines, columns, bars, or pieces of the pie of the graph.

84) Which graph is used primarily to show change over time? 84)A) column chart B) line graph C) bar chart D) pie chart

85) Which graph is used to compare different variables at a particular point in time? 85)A) line graph B) bar chart C) pie chart D) column chart

86) Which graph is used to show one or more variables within certain classes or categories during aspecific time period?

86)

A) line graph B) bar chart C) pie chart D) column chart

87) Which graph is the easiest to read for showing how 100 percent of a commodity is divided at aparticular point in time?

87)

A) Column chart B) 100 percent stacked column chartC) 100 percent divided bar chart D) Pie chart

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88) Which column chart is useful in emphasizing years that show a loss, or in pointing out the year inwhich the company intends to break even?

88)

A) 100 percent stacked column chartB) simple column chartC) deviation column chartD) a column chart with more than one variable

89) Which of the following is not a technique for overcoming speaking anxiety? 89)A) Memorize your talk ahead of time. B) Be prepared.C) Speak naturally. D) Be yourself.

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.

90) Some of the hardware __________ involve expanding or recycling current hardware, so itis important to know what is on hand.

90)

91) Through interviewing, questionnaires, and research of __________ data, the systemsanalyst will know the number of people available for data processing.

91)

92) Other events, such as superior __________ innovations, may dictate hardware replacementif the business wants to maintain its competitive edge.

92)

93) It is important to be clear about required and desired __________ before getting toowrapped up in vendors' claims during demonstrations.

93)

94) The three main options for acquisition of computer hardware include buying, __________,or renting.

94)

95) Consider using __________ software when you can easily integrate the applications orpackages into existing or planned systems.

95)

96) Vendors will not guarantee their packaged software if used in conjunction with faulty__________.

96)

97) Manufacturer support includes hotlines, newsletters, and __________. 97)

98) __________ are rule-based reasoning systems developed around an expert in the field. 98)

99) __________ are when software gets feedback on decisions, observing what was involved insuccessful decisions.

99)

100) The process that allows decision makers to reduce the number of alternatives by ranking orcounting is called __________.

100)

101) __________ allow users to receive news from the Internet, scrolling across the screen like astock ticker.

101)

102) The method of moving averages is useful because some __________, cyclical, or randompatterns may be smoothed.

102)

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103) __________ benefits are advantages measurable in dollars that accrue to the organizationthrough use of the information system.

103)

104) One disadvantage of __________ analysis is that benefits are assumed to remain the same,regardless of which system is in place.

104)

105) __________ analysis examines the direction, size, and pattern of cash flow that is associatedwith the proposed information system.

105)

106) Present value analysis helps the systems analyst to present to business decision makers thetime value of the __________ in the information system as well as the cash flow.

106)

107) Use __________ analysis if the project needs to be justified in terms of cost, not benefits. 107)

108) Use __________ when the improved tangible benefits form a convincing argument for theproposed system.

108)

109) Use __________ analysis when the project is expensive relative to the size of the company. 109)

110) Use present value when the __________ period is long, or when the cost of borrowingmoney is high.

110)

111) A cover letter to management and the IT __________ should accompany the systemsproposal.

111)

112) The outline of the systems study provides information about all the __________ used in thestudy.

112)

113) The __________ summary is a brief statement that mirrors the content of the executivesummary.

113)

114) The proposal summary allows the analyst to stress the project's importance and__________ along with the value of the recommendation.

114)

115) __________ charts can depict a comparison between two or more variables over time. 115)

116) A __________ column chart is useful in emphasizing years that show a loss. 116)

117) __________ are similar to column charts and are used to show variables, or variableswithin certain classes or categories, during a specific time period.

117)

118) A __________ is used to show how 100 percent of a commodity is divided at a particularpoint in time.

118)

119) One of the best ways to gauge the __________ of presentations is by observing manydifferent organizational meetings prior to the systems proposal presentation.

119)

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Answer KeyTestname: UNTITLED1

1) TRUE2) TRUE3) FALSE4) TRUE5) FALSE6) FALSE7) FALSE8) TRUE9) FALSE

10) TRUE11) FALSE12) TRUE13) TRUE14) FALSE15) FALSE16) FALSE17) TRUE18) TRUE19) TRUE20) FALSE21) TRUE22) FALSE23) TRUE24) FALSE25) TRUE26) FALSE27) TRUE28) TRUE29) FALSE30) FALSE31) TRUE32) FALSE33) FALSE34) TRUE35) FALSE36) TRUE37) FALSE38) TRUE39) TRUE40) FALSE41) FALSE42) TRUE43) FALSE44) FALSE45) TRUE46) FALSE47) A48) A49) A50) D

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Answer KeyTestname: UNTITLED1

51) C52) C53) C54) C55) D56) D57) E58) B59) C60) A61) B62) D63) D64) D65) C66) C67) B68) D69) A70) C71) C72) D73) D74) E75) B76) B77) A78) E79) B80) A81) C82) D83) B84) B85) D86) B87) D88) C89) A90) options91) archival92) technological93) functions94) leasing95) COTS96) hardware97) Web sites98) Expert systems99) Neural nets

100) collaborative filtering11

Answer KeyTestname: UNTITLED1

101) Push technologies102) seasonal103) Tangible104) break-even105) Cashflow106) investment107) break-even108) payback109) cashflow110) payback111) task force112) methods113) proposal114) feasibility115) Column116) deviation117) Bar charts118) pie chart119) formality

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