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auditing assurance services
Information Systems Control And Audit 1st Edition Ron Weber - Solutions
What are the primary bases used to organize the resources to support the information systems audit function within an organization?
Is it better to hire persons who primarily have a computing background or persons who primarily have an auditing background as information systems auditors?
Briefly outline the steps to be undertaken during appraisal of information systems audit staff. Why is it important to use the appraisal process to determine the development needs of information systems audit staff?
What difficulties exist with finding suitable career paths for information systems auditors? Give two alternative career paths that an information systems auditor might pursue.
Give three objectives of leadership within the information systems audit function.
Briefly outline two leadership processes we need to put in place if we manage the information systems audit function.
How can we exercise control over individual audits and the information systems audit function overall?
What are the five conditions that must be satisfied if an occupational group is to call itself a profession?
Briefly explain the nature of the Information Systems Audit and Control Association.
How has the Information Systems Audit and Control Association addressed the need for information systems auditors to share a common body of knowledge?
What are four categories of general standards developed by the Information Systems Audit and Control Association?
Why did the Information Systems Audit and Control Association issue their Statements on Auditing Standards?
What mechanism has been set up by the Information Systems Audit and Control Association to assess the competency of information systems auditors?
What are the five domains that are tested within the CISA examination?
What are the four conditions that an information systems auditor must fulfil to retain the CISA designation?
Give five matters covered by the Information Systems Audit and Control Association's Code of Ethics.
What is the primary disciplinary mechanism used by the Information Systems Audit and Control Association in relation to its members? Do you think this disciplinary mechanism is effective? Why?
Give three ways in which organizational use of the Internet has affected the information systems auditor's function.
What is meant by electronic commerce? Give three control problems that arise when electronic commerce is conducted via public data communications networks.
How is public-key cryptography useful in the context of electronic commerce conducted via public data communications networks?
What is business process reengineering? From a control viewpoint, what unfavorable impacts have arisen when business process reengineering has been used within organizations?
What is information systems outsourcing? How should an information systems auditor be involved when an organization decides to undertake information systems outsourcing?
Why has data privacy remained an enduring concern within the information systems audit and control discipline?
Give four principles that underlie the regulatory regime called FIP. Why are the principles underlying FIP becoming increasingly difficult to enforce?
Give three implications of data privacy legislation for the work carried out by information systems auditors.
What is data mining? How might data mining techniques facilitate the work of information systems auditors?
What is an interorganizational information system? What is a virtual organization? How might interorganizational information systems and virtual organizations impact the work of information systems auditors?
The capability of a system is an example of a:a. Throughput indexb. Utilization indexc. Timeliness indexd. Reliability index
A round robin strategy describes:a. An arrival pattern at a serverb. A processor service disciplinec. An input/output device routing strategyd. An approach to building a natural workload model
If auditors focus on processes in the design and implementation of a simulation model, time is incremented:a. When the system changes its stateb. By constant intervalsc. By random intervalsd. When the system invokes a new process
The major empirical model used in performance evaluation is:a. The general linear modelb. Regressionc. Analysis of varianced. Analysis of covariance
Which of the following workload models cannot be used with a simulation system model?a. Benchmarkb. Instruction mixc. Synthetic jobd. Probabilistic
Which of the following workload models cannot be used with an analytical system model:a. Probabilisticb. Instruction mixc. Traced. Kernel program
Which of the following steps most likely will be undertaken first when evaluating the effectiveness of an information system?a. Identify the objectives of the information systemb. Identify the sources of effectiveness datac. Select the effectiveness measures to be usedd. Obtain the ex ante values
Which of the following is least likely to be an important association that auditors would find when conducting an evaluation of information system effectiveness?a. Between computer self-efficacy and perceived ease of useb. Between perceived system quality and perceived usefulnessc. Between system
Which of the following is least likely to be used as a measure of system quality during the conduct of an evaluation of information system effectiveness?a. Turnaround timeb. Extent of adaptive maintenancec. Ease of interactiond. Authenticity of information
Which of the following is least likely to be used as a measure of information quality during the conduct of an evaluation of information system effectiveness?a. Timelinessb. Comprehensibilityc. Usefulness of functionalityd. Precision
The perceived usefulness of an information system has been defined as the prospective user's subjective probability that using the system will increase his or her:a. Job performance within an organizational contextb. Quality of working life within an organizational contextc. Satisfaction within a
Which of the following is least likely to affect users' perception of the ease of use of an information system?a. Time required for them to learn to operate the systemb. Level of effort required for them to become skilful with the systemc. Increased ease with which they can undertake the tasks
Which of the following statements about computer self-efficacy is least likely to be true?a. It manifests a person's judgment of his or her ability to use a computerb. A person's judgment of his or her computer self-efficacy is primarily future orientedc. It is less likely to be important when
Frequency of use is most likely to be a more reliable indicator of information system effectiveness than amount of use when:a. The ratio of idle time to connect time is lowb. Users have a high level of competence in using the systemc. Users can accomplish their tasks quicklyd. System use is
Which of the following levels of change will a decision support system developed to facilitate top management's strategic decision making have to evoke for it to be successful:a. Management actionb. Management changec. Recurring use of the management science approachd. Task redefinition
The management change level of adoption requires users of an information system to:a. Treat the system as a black box and use the information or solution to the problem provided by the systemb. Have an elementary understanding of the system so it can be used as a tool to find answers to specific
Which of the following is least likely to be a valid and reliable measure of task accomplishment for the users of a system?a. User satisfaction with a decisionb. Time required to undertake a decisionc. Accuracy of a decisiond. Effectiveness of a decision
Which of the following is least likely to be a problem when measuring changes to the quality of working life subsequent to the implementation of an information system?a. Different groups within an organization have a vested interest in how the quality of working life is definedb. Users are unlikely
Which of the following is used as a surrogate measure when attempting to evaluate the level of the quality of working life?a. Strike rateb. Adequacy of compensation providedc. Level of safety in the workplaced. Level of opportunities for personal growth
A disadvantage of using a surrogate measure to assess the level of the quality of working life is that:a. The measure is neither objective nor verifiableb. The data supporting the measure is difficult to obtainc. The underlying reasons for any changes to the level of the quality of working life
Which of the following best describes the "productivity paradox" associated with information technology?a. Organizations have continued to invest large amounts of money in information technology without any apparent payoffsb. Returns from investments in information technology appear to be
Payoffs from investments in information technology are least likely to occur in relation to:a. Profitabilityb. Value for consumersc. Productivityd. Cost reductions
Which of the following is an operational cost of an information system?a. Purchase of system softwareb. Perfective maintenance on programsc. Preparation of user manualsd. System analysis time devoted to information requirements analysis
Spillover effects are:a. The extra overhead costs incurred because the limits on the size of a direct access file have been exceededb. The unanticipated costs that arise in other information systems by virtue of the implementation of a particular information systemc. Any intangible benefit that
Which of the following strategies is more likely to facilitate a user estimating the value of intangible benefits?a. Lump all intangible benefits together and try to come up with an overall valueb. Try to identify a similar system that has already been implemented and determine the value of
The net present value of an information system must be determined by discounting the benefits and costs by the required rate of return. To determine the required rate of return, the parameter, \(\beta\), must be estimated by:a. Determining the mean of the risk-free rate of returnb. Determining the
You have recently been appointed as the manager of internal audit for a large private university. One of the important tasks you have been asked to undertake is a regular, periodic evaluation of the effectiveness of the major information systems used within the university.A critical system within
The Hi-Strung Manufacturing Company (HSM) is a large manufacturer of a range of specialized products to support the electricity industry. It has 27 departments, each of which is given substantial autonomy to manage its financial affairs.To date, HSM has used a batch financial reporting system for
Two years ago, the director-general (chief executive officer) of a large state government department in Australia took a decision to introduce executive information systems (EISs) within her department. With major cutbacks to funding of her department having occurred, she was searching for ways to
Pacific Networking Links Ltd. (PNL) is a large Brisbane-based developer of advanced networking software for the worldwide market in open-system architectures. The company is divided into ten major departments, based around particular products and services that it offers to customers. Over its 15
Australasian Life Insurers Ltd. (ALI) is a large Melbourne-based life insurance company that sells life insurance throughout Australia, New Zealand, and Southeast Asia. Four years ago, a new chief executive officer (CEO) was appointed to ALI. He had previously been a senior executive with many
Not all information systems are subjected to a postimplementation review. Identify one factor that increases the probability of a system undergoing postimplementation review and one factor that decreases the probability of a system undergoing postimplementation review. Briefly justify your answer.
List the six major steps to be undertaken when evaluating an information system to assess its effectiveness.
In the model of information system effectiveness we have used in this chapter, which components are affected by the following components?a. System qualityb. Perceived ease of usec. Computer self-efficacyd. Individual impacte. Information system satisfaction
From an auditor's viewpoint, what are the two major purposes of the model of system effectiveness described in the chapter?
Give four measures of system quality.
How might the history of adaptive maintenance for a system affect our assessment of its quality?
How does the level of resource independence in an information system affect our assessment of its quality?
Give four measures of information quality. Why might different users of an information system have different perceptions about the quality of the information provided by the system?
What is meant by the perceived usefulness of an information system? Give four measures of perceived usefulness.
How is perceived usefulness distinguished from perceived ease of use of an information system? Give four measures of perceived ease of use of an information system.
What is meant by computer self-efficacy? Is computer self-efficacy always likely to be a concern when assessing information system effectiveness?
Why is it important that auditors distinguish between voluntary and involuntary use when assessing the effectiveness of an information system? How might they identify involuntary use of an information system?
Is frequency of use always a good measure of the effectiveness of an information system? Briefly explain.
Briefly explain why auditors should assess the nature of the use made by different users of an information system when seeking to evaluate the effectiveness of the information system. What type of change (level of adoption) should the following systems evoke if they are to be operationally
How might the source of use of an information system impact an auditor's evaluation of its effectiveness?
Give four general measures that auditors might use to assess the impact of an information system on the task accomplishment of its users. Why might auditors have to adapt these measures in light of the particular type of information system whose effectiveness they are evaluating?
Why might auditors need to trace task accomplishment over time when they evaluate the effectiveness of an information system?
"Auditors are concerned with controls, not the quality of working life in an organization! That should be left to the personnel people in the organization." Briefly discuss.
Briefly explain why different groups in an organization might assess their quality of working life differently. When evaluating the effectiveness of an information system, whose viewpoint on the quality of working life should auditors adopt when evaluating the effectiveness of the system?
Briefly explain the meaning of the following attributes of the quality of working life:a. Opportunity to use and develop human capacitiesb. Social integration in the work forcec. Constitution in the work organization
Why might auditors have to use surrogate measures to assess the impact of an information system on the quality of working life of its users? Give three surrogate measures that auditors might employ and explain briefly how they might be useful.
Give one major advantage of using a surrogate measure of the quality of working life. Give one major disadvantage.
Briefly explain how user information system satisfaction and user task accomplishment might be related when auditors evaluate the effectiveness of an information system.
Briefly explain the nature of each of the following approaches to evaluating organization effectiveness:a. Rational goal model approachb. Systems resource model approachc. Managerial process model approachd. Organizational development model approache. Bargaining model approachf. Structural
Briefly explain the nature of the competing values model approach to assessing organizational effectiveness. What relevance does this model have in terms of an auditor's assessment of the effectiveness of an information system?
What is meant by the "productivity paradox" in relation to investment in information systems?
Why is it important that auditors evaluate the economic effectiveness of an organization's information system in terms of:a. Changes in productivity in the organizationb. Changes in the organization's profitabilityc. Changes in the value of products and services to the organization's customers
Briefly describe two techniques that auditors might use to identify the benefits and costs associated with an information system.
Briefly describe two techniques that auditors might use to value the benefits associated with an information system.
You are a senior auditor on the external audit team for a medium-size retail bank that has an online real-time update system for its customer accounts file. The bank uses a well-known relational database management system to maintain the customer accounts file. The hardware and system software
You are the partner in charge of the external audit of a medium-size manufacturing company. The company has only just become your client in the current financial year. Accordingly, your firm's knowledge of and experience with the company is limited. Nevertheless, in light of investigations you
What problems, if any, exist with the following questions on a selfadministered questionnaire given by auditors to users of an application system to assess their feelings about the system:a. Do you ever have trouble using the system?b. Does your terminal have a fast enough baud rate?c. Would you
The chapter identified various deficiencies in the following questions that might be used on a questionnaire we employ during an audit:a. Are the semantics of the language sufficient for you to be able to perform your job?b. Does the system allow you to perform your job faster and improve your job
Design an internal control questionnaire that could be used to evaluate whether asset safeguarding and data integrity objectives are achieved within the database administration function. Assume the questionnaire will be completed by auditors during the conduct of an interview with the database
Major Miners Ltd. (MML) is a large minerals exploration and mining company based in Brisbane, Australia. It has large facilities in Queensland, the Northern Territory, Western Australia, and Papua New Guinea.The following is a description of MML's accounts payable system:a. Invoices received from
Draw a data flow diagram to represent the data flows and functions performed when you use an automatic teller machine (ATM) to withdraw cash from your bank account. Assume the ATM is always used in an online realtime update mode. When you have completed the data flow diagram, draw another data flow
How can auditors use the measurements taken via performance measurement tools to assist them in improving efficiency in a system?
Give three classes of characteristics of a computer system that might be measured by a performance measurement tool. Briefly explain why instances of each of these classes of characteristics may be measured.
What is the function of the sensor in a performance measurement tool?
Briefly explain why it might be necessary to carry out some form of reduction on data collected by a performance measurement tool before it is stored.
Briefly explain why auditors might be interested in obtaining the distribution of disk seek times for an online real-time program when attempting to improve the efficiency of the program.
What is meant by artifact? Why is it important for auditors to know the extent of artifact that a performance measurement tool may produce? Is it possible to control for artifact? Briefly explain.
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