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Terms in this set (65)A collection of activities and elements organized to accomplish a goal. This is the definition of D. a system. In this phase of the systems life cycle, the new information
system is installed and adapted to the new system, and people are trained to use it. A. Systems implementation In this phase of the systems life cycle, new or alternative information systems are designed. C. Systems design A recent survey by Money magazine determined that out of 100 widely-held jobs, the top job classification, based on salary, prestige, and security, was a D. computer engineer. In the preliminary investigation phase of the
systems life cycle, which one of the following tasks would not be included? C In order to obtain financing for the analysis phase, the systems analyst must A. prepare a preliminary investigation report. Including schedules for further development of a project would be a part of this phase C. preparing a short report. The
relationship between input and output documents is shown by A. a grid chart. Which of the following is used to show the rules that apply to a decision when one or more conditions apply? B. Decision table Which of the following tools present data or information flow within an information system? D. Data flow diagram These tools are also called computer-aided software engineering (CASE) tools. They are used in system analysis to evaluate alternative hardware and software
solutions. B. Automated design tools Which among the following would not be described in the systems analysis report? D. The training requirements for users The final task in the design phase of the systems life cycle is to C. write a systems design report. The first step in the systems design phase is to B. design alternative systems. Determining whether the system can be made secure against unauthorized use is part of C. selecting the best system. The costs versus the benefits of designs and the outlines of their effects is presented in the D. systems design report. During which phase of the systems life cycle are users trained to use the new system? B. Systems implementation The first step in implementing a new system is to determine the C. conversion type. Problems arising in
this approach would spell disaster. A. Direct approach This implementation approach is preferred when there are many people in an organization performing similar operations. D. Pilot The
final step of the implementation phase of the systems life cycle is to B. train the users. Identify the sixth phase of the systems life cycle. A. Systems maintenance Which of the following phases of the systems life cycle is considered as the "ongoing process"? D. Systems maintenance Determining whether the new procedures are actually furthering productivity is part of the D. systems audit phase. Although the development time is shorter, it is sometimes more difficult to manage the project and to control costs with B. prototyping. A systems analyst uses the six-phase systems lifecycle to improve and maintain information systems. TRUE A survey of user needs is part of the preliminary investigation phase. TRUE Data about how the present system works is collected
during the preliminary investigation phase in order to determine the requirements of the new system. FALSE In Phase 2 of the systems life cycle, the primary concern is completing a new design. FALSE Gathering data and information in the first step of systems analysis can be achieved through
conducting interviews and doing observation. TRUE The organization chart shows levels of management and formal lines of authority. TRUE More often than not, the current information system is not operating correctly because prescribed procedures are not modeled to the requirements.
FALSE Not enough tools are available to assist system analysts and the end users in analyzing data. FALSE The top-down analysis method makes each component easier to analyze and deal with. TRUE If a
firm is to decide upon the acceptance of a finance project with a value of $10,000, and if the client has a good credit history, it will most likely use the grid chart to decide. FALSE CASE stands for "Computer Aided Software Engineering". TRUE CASE tools are limited to systems analysis only.
FALSE In the design phase of the systems life cycle, alternative systems are analyzed for economic, physical, and operational feasibility. FALSE Selecting the best system is the first step of the systems design phase of the systems life cycle. FALSE In the systems design phase of the systems life cycle, the systems design report usually concludes by proposing one of the analyzed alternatives. TRUE Hardware and software are normally acquired during the implementation phase of the systems life cycle. FALSE Application
software for new information systems always requires having it custom-designed to meet the needs of the organization. FALSE In the testing phase of the systems life cycle, processed information is evaluated to see whether the results are correct. TRUE The organization can switch to the old system if
the new system fails in the parallel approach. TRUE Periodic evaluation is part of the systems maintenance phase of the systems life cycle. TRUE A(n) _____ is a collection of hardware, software, people, procedures, and data. information system New hardware and software are acquired, developed, and tested in the _____ stage of the systems life cycle. systems development Systems analysis and design is a problem-solving procedure for examining and improving a(n) _____. information system An important aspect of the preliminary investigation phase is to suggest _____. alternatives The _____ analysis method identifies the top-level components of a complex system. top-down ) A(n) _____ shows the relationship between input and output documents. grid chart Distribution of information is represented by the _____. system flowchart A(n) _____ shows the decision rules that apply when certain conditions occur. decision table The _____ describes the possible development schedule. systems analysis report The third phase in the systems life cycle is the _____ phase. systems design _____ feasibility is evaluated to determine if the proposed system can actually be made to operate in the organization. Operational Systems designers evaluate each alternative in the systems design phase for _____. feasibility When evaluating alternative systems, systems designs must consider economic feasibility, _____ feasibility, and operational feasibility. technical The systems design report presents the _____ versus the benefits. costs _____ of the system follows the acquiring of software and hardware. Testing Another name for Phase 5, systems implementation is _____. conversion The _____ approach to systems implementation is considered the most risky. direct The _____ approach to systems implementation is used only in cases in which the cost of failure or of interrupted operation is great. parallel In general, the pilot and _____ are the most favored approaches. phased Most organizations spend more time and money on the _____ phase than on any of the others. systems maintenance Sets with similar termsExam 1225 terms huangkaiyu123 Chapter 12 - Systems Analysis and Design117 terms carliemassie2 Info Tech Ch. 1235 terms jadeharrison2015 Ch. 1390 terms richmondscooby Sets found in the same folderExam 1230 terms Testeric Exam 1330 terms Testeric Exam 1130 terms Testeric COSC: FINAL PRACTICE EXAM71 terms n_tluu Other sets by this creatorMetal, Nonmetal, Metalloid40 terms dchiselenco Periodic table vocabulary12 terms dchiselenco Term keys8 terms dchiselenco Comp TIA A+ Acronyms301 terms dchiselenco Verified questions
ADVANCED MATH Maria rented the same car twice in one month. She paid $180 the first time for 3 days and she drove a total of 150 km. The next time, she also paid$180 and had the vehicle for only 2 days, but travelled 400 km. a) What was the cost per day? b) What was the cost per kilometre? Verified answer
ADVANCED MATH Assume that an average of 125 packets per second of information arrive to a router and that it takes an average of .002 second to process each packet. Assuming exponential interarrival and service times, answer the following questions. a. What is the average number of packets waiting for entry into the router? b. What is the probability that 10 or more packets are present? Verified answer
ADVANCED MATH Find a nontrivial factor of 4087 by the rho-method employing the indicated $x_{0}$ and $f(x) :$ (a) $x_{0}=2, f(x)=x^{2}-1 .$ (b) $x_{0}=3, f(x)=x^{2}+1$ (c) $x_{0}=2, f(x)=x^{2}+x+1$ Verified answer
ADVANCED MATH We produce two products: product 1 and product 2 on two machines (machine 1 and machine 2). The number of hours of machine time and labor depends on the machine and the product as shown in Table 64. The cost of producing a unit of each product is shown in Table 65. The number of labor hours and machine time available this month are in Table 66. This month, at least 200 units of product 1 and at least 240 units of product 2 must be produced, Also, at least half of product 1 must be made on machine 1, and at least half of product 2 must be made on machine 2. Determine how we can minimize the cost of meeting our monthly demands. Table 64: $$ \begin{matrix} \text{ } & \text{Product 1} & \text{Product 2} & \text{Product 1} & \text{Product 2}\\ \text{ } & \text{Machine 1} & \text{Machine 1} & \text{Machine 2} & \text{Machine 2}\\ \text{Machine time} & \text{0.7} & \text{0.75} & \text{0.8} & \text{0.9}\\ \text{Labour} & \text{0.75} & \text{0.75} & \text{1.2} & \text{1}\\ \end{matrix} $$ Table 65: $$ \begin{matrix} \text{Product 1} & \text{Product 2} & \text{Product 1} & \text{Product 2}\\ \text{Machine 1} & \text{Machine 1} & \text{Machine 2} & \text{Machine 2}\\ $\text{1.50} & $\text{0.40} & $\text{2.20} & $\text{4.00}\\ \end{matrix} $$ Table 66: $$ \begin{matrix} \text{Resource} & \text{Hours Available}\\ \text{Machine 1} & \text{200}\\ \text{Machine 2} & \text{200}\\ \text{Labor} & \text{400}\\ \end{matrix} $$ Verified answer
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Implementation includes user notification, user training, installation of hardware, installation of software onto production computers, and integration of the system into daily work processes.
Which phase in the system life cycle involves gathering and analyzing data?Analysis
This phase involves gathering all the specific requirements for the system to be designed, analyzing any existing system if there is one, and the drawbacks it has that result in going for new software, and feasibility study of the new software system to be designed.
Which systems life cycle phase acquires develops and tests new hardware and software quizlet?Phase 4: Systems development- New hardware and software are acquired, developed, and tested.
What are the phases in the systems development life cycle quizlet?SDLC has seven main phases: Planning, Analysis, Design, Development, Testing, Implementation, and Maintenance.
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Which phase in the systems life cycle involves designing a new or alternative information system quizlet?
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