Exam 13: Developing Information Systems

What are the advantages and disadvantages of prototyping? Describe the steps in prototyping.Give at least two circumstances under which prototyping might be useful.

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Question 1

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Prototyping is most useful when there is some uncertainty about requirements or design solutions.Because prototyping encourages intense end-user involvement throughout the process,it is more likely to produce systems that fulfill user requirements.Working prototype systems can be developed very rapidly and inexpensively.
Rapid prototyping can gloss over essential steps in systems development.If the completed prototype works reasonably well,management may not see the need for reprogramming,redesigned,full documentation in testing to build a polished production system.This can backfire later with large quantities of data or large numbers of users in a production environment.
The steps in prototyping are:
1.identify the user's basic requirements,
2.develop an initial prototype,
3.use the prototype,
4.revise and enhance the prototype.
Prototyping might be especially useful in designing end-user interfaces,or situations in which the users have no clear ideas of what their information requirements are.

In the direct cutover conversion strategy,the new system

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Question 2

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The majority of ________ projects do not achieve breakthrough gains in business performance because the organizational changes are often very difficult to manage.

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Question 3

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re-engineering

A more powerful type of organizational change is ________,in which business processes are analyzed,simplified,and redesigned.

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Question 4

Acceptance testing provides the final certification that the system is ready to be used in a production setting.

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Question 5

________ must have sufficient control over the design process to ensure that the system reflects their business priorities and information needs,not the biases of the technical staff.

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Question 6

There are alternative methodologies for modelling and designing systems,the most prominent are structured methodologies and object-oriented development.

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Question 7

Systems development can be broken down into six core activities.

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Question 8

"The system designer (usually an information systems specialist)works with the user only long enough to capture the user's basic information needs" describes which step in the prototyping process?

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Question 9

The process of streamlining business procedures so that documents can be moved easily and efficiently is called

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Question 10

The entire system-building effort is driven by

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Question 11

An entire information system is broken down into its subsystems by using

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Question 12

Ford Motor Company's invoiceless processing,which reduced headcount in Ford's North American accounts payable organization of 500 people by 75 percent.Ford changed its accounts payable process so that the purchasing department enters a purchase order into an online database that can be checked by the receiving department when the ordered items arrive.If the received goods match the purchase order,the system automatically generates a cheque for accounts payable to send to the vendor.There is no need for vendors to send invoices.This is an example of ________.

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Question 13

Business processes are analyzed,simplified,and redesigned in

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Question 14

Once the existing process is mapped and measured in terms of time and cost,the process design team is finished.

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Question 15

Which type of systems development is characterized by significantly speeding up the design phase and the generation of information requirements and involving users at an intense level?

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Question 16

The primary tool for representing a system's component processes and the flow of data between them is the ________.

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Question 17

The process of creating workable information systems in a very short period of time is called

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Question 18

System design specifications that address the category of database design issues will include specifications for

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Question 19

If an organization's requirements conflict with the software package chosen and the package cannot be customized,the organization will have to

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Question 20

Showing 1 - 20 of 200

What are the advantages and disadvantages of prototyping? Describe the steps in prototyping.Give at least two circumstances under which prototyping might be useful.

In the direct cutover conversion strategy,the new system

The majority of ________ projects do not achieve breakthrough gains in business performance because the organizational changes are often very difficult to manage.

A more powerful type of organizational change is ________,in which business processes are analyzed,simplified,and redesigned.

Acceptance testing provides the final certification that the system is ready to be used in a production setting.

________ must have sufficient control over the design process to ensure that the system reflects their business priorities and information needs,not the biases of the technical staff.

There are alternative methodologies for modelling and designing systems,the most prominent are structured methodologies and object-oriented development.

Systems development can be broken down into six core activities.

"The system designer (usually an information systems specialist)works with the user only long enough to capture the user's basic information needs" describes which step in the prototyping process?

The process of streamlining business procedures so that documents can be moved easily and efficiently is called

The entire system-building effort is driven by

An entire information system is broken down into its subsystems by using

Business processes are analyzed,simplified,and redesigned in

Once the existing process is mapped and measured in terms of time and cost,the process design team is finished.

Which type of systems development is characterized by significantly speeding up the design phase and the generation of information requirements and involving users at an intense level?

The primary tool for representing a system's component processes and the flow of data between them is the ________.

The process of creating workable information systems in a very short period of time is called

System design specifications that address the category of database design issues will include specifications for

If an organization's requirements conflict with the software package chosen and the package cannot be customized,the organization will have to

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