Computer Concepts

Computing

Quiz 10 :

Information Systems Analysis and Design

Quiz 10 :

Information Systems Analysis and Design

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Your friend just graduated and started work in a local pharmacy. She tells you about the pharmacy's computer system that warns of dangerous drug interactions by examining the patient's prescription record and sometimes asking the pharmacist to enter age and allergy information. The system that she has been describing sounds like a(n) img system.
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Expert system
For capturing and storing the knowledge of human experts is done by expert system information system. After this, the operations like decision making and human reasoning are performed.
An expert system capture the human knowledge as a set of rules in a software which is used by other users in decision making situations when hiring the experts become expensive.
A system which examines the prescription record of patient and warns about dangerous interaction falls in category of expert systems.
Therefore, the appropriate word to fill ion the blank is expert.

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On your last job, you worked as an admitting clerk in a hospital. One day you were told to begin using the hospital's new information system. The next day, you were told to go back to using the old system until further notice. You suspect that these events occurred as a result of a failed attempt at a(n) img conversion.
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Direct conversion
In direct conversion the old system has to be deactivated completely and the new system has to be activated. It is advisable to do the direct conversion in the free hours to minimize the disturbance into the business processing.
If the new system does not work as per the requirements, then the new system is deactivated and old system is activated. Also the new entered transactions are re-entered in old system.
As it is said to admitting clerk that he/she has to use old information system, it means that there are some problems in the new information system. This means that the new information will undergo further testing or development.
Therefore, the appropriate word to fill in the blank is direct.

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Explain the differences between strategic, tactical, and operational planning. Provide an example of how a computer system might be used for each type of planning.
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Difference between strategic, tactical, operational planning
Difference between strategic, tactical, operational planning is as shown:
img Use of computer system for planning:
Information system helps in providing some or all the data which is needed for strategic planning, tactical planning and the operational planning.
Information system helps people in performing their job effectively and quickly by routine tasks for example taking customer order, reordering inventory and sending renewal notice. Information system helps people in making their decisions for any problem

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Explain the advantages and disadvantages of centralized processing and distributed processing.
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As a member of the IT staff at a large corporation, you often hear about problems with the current information system. One recently discovered problem is that when an employee quits (or gets fired), sometimes the network manager is not notified, and the former employee continues to have access to company data over the Internet. Using the PIECES framework, you would classify this as a(n) img problem.
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An article in your local newspaper describes a new airport security system as "a sophisticated facial-recognition system powered by advanced computer technology that learns on its own." This technology sounds like a(n) img network.
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Describe how information systems help organizations fulfill their missions, deal with threats, and take advantage of opportunities.
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Your county provides online access to property records. You simply enter the address of the property or the owner's name. However, each search seems to take longer than one minute. According to the PIECES framework, this delay would be classified as a(n) img problem.
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Suppose that you own a small bookstore located in a mall. Business seems to be declining, and you suspect that many of your former customers are now shopping at online bookstores. What can you do about declining sales? You realize that this problem falls into the category of a(n) img problem, and you might not be able to solve it using the data supplied by your MIS.
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Contrast and compare the characteristics of transaction processing systems, management information systems, decision support systems, and expert systems.
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Your roommate works in the Data Entry department for a large corporation and has been asked to participate in a JAD session. When asked about it, you explain to your roommate that JAD stands for img application design, and this probably means the corporation is working on a new information system.
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Explain the differences between structured, semi-structured, and unstructured problems. Provide an example of each type, and describe how an information system might contribute to solving the problems.
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You just started working in the IT department for a very small company that's developing a new information system. Your coworkers are trying to track down a discrepancy that resulted from a change in the name of a data field. Although you don't say it, you realize that such a problem would not have occurred if the project team had used img tools. (Hint: Use the acronym.)
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List ten information systems that you've used.
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List the phases of the SDLC and the tasks that occur in each phase. Identify three development methodologies that systems analysts might use to complete the SDLC.
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Describe the five types of testing used during the implementation phase.
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For each letter of the PIECES framework, create your own example of a problem that a systems analyst might discover in an obsolete information system.
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List and describe four software alternatives that systems analysts might consider for a new information system.
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Using your own examples, discuss the ways in which an organization can respond to opportunities and threats.
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List and briefly describe three tools used for project scheduling, and then list and describe four documentation tools used in the analysis phase of the SDLC. Draw a DFD showing the flow of data (ingredients) when you make a grilled cheese sandwich.
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