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Answered: - design a powerpoint discussing the benefits of prototyping


design a powerpoint discussing the benefits of prototyping in System Analysis.?


Willowbrook School

 

Chapter 7

 

Willowbrook School is a small private school that has retained your services as a systems

 

analyst to assist in the development of a new information system for the school?s

 

administrative needs.

 

Background

 

Based on your earlier recommendations, Willowbrook decided to continue the systems

 

development process for a new information system that would improve operations,

 

decrease costs, and reduce some of the administrative workload.

 

Now, at the end of the systems analysis phase, you are ready to prepare a system

 

requirements document and give a presentation to the Willowbrook School?s

 

management and board of directors. Many of the proposed system?s advantages were

 

described during the fact-finding process. Those include smoother operation, better

 

efficiency, and more user-friendly procedures for staff and parents.

 

You must examine tangible costs and benefits to determine the economic feasibility of

 

multiple alternatives. The finance and fund-raising committees will need to examine the

 

costs and benefits to determine if the development process will go ahead. If Willowbrook

 

School decides to go ahead with development, the system can either be developed inhouse or purchased as a vertical package and configured to meet the needs of the school.

 

Currently, Michelle Madrid is logging 10 hours of overtime a week due to the increased

 

workload associated with increased enrollment and school expansion. She is being

 

compensated for overtime at a cost of $22.50 per hour including overhead expenses.

 

Based on current enrollment projections, the overtime will need to be expanded to 15

 

hours a week in the next school year. The overtime requirement would be eliminated if

 

Willowbrook implements the new system. The current system now causes an average of

 

six errors per week, and each error takes about 20 minutes to correct. The new system

 

should eliminate those errors.

 

Based on your research, you originally estimated by working 35 hours per week you

 

could complete an in-house development project in about 8 weeks. Your consulting rate,

 

which Willowbrook agreed to, is $35 per hour. If you design the new system as a

 

database application, you can expect to spend about $1,500 for a networked commercial

 

package. One of the parents at Willowbrook has extensive experience with this package

 

as a Database Administrator at a local company, and has committed to providing 10

 

hours per week working with you to develop the project. After the system is operational

 

and the staff is trained, you hope that Willowbrook staff and volunteers can handle

 

routine maintenance tasks without your assistance. If they continue to require your

 

assistance, a contract rate can be negotiated later depending on the nature of the problem.

 

As an alternative to in-house development, a vertical software package is available for

 

about $8,500. The vendor offers a lease-purchase package of $2,000 down, followed by

 

1

 


 

two annual installments of $3,250 each. If Willowbrook buys the package, it would take

 

you about three weeks to install, configure, and test it, working full-time. The vendor

 

provides free support during the first year of operation, but then Willowbrook must sign a

 

technical support agreement at an annual cost of $750 for the duration of years. Although

 

the package contains many of the features that Willowbrook wants, most of the reports

 

are pre-designed and it would be difficult to modify their layouts.

 

You have agreed to provide five hours per week of training and support for the first two

 

months of operation. After the new system is operational, it will need routine

 

maintenance, file backups, and updating. These tasks will require about four hours per

 

week and will be performed by school staff or parent volunteers at an average hourly rate

 

of $12.50.

 

For both the in-house development and the vertical software package, the necessary

 

hardware will cost about $3,500. Hardware and network installation will be partially

 

provided by three parent volunteers.

 

In your view, the useful life of the system will be about five years, including the year in

 

which the system becomes operational.

 

The development of the new system will occur in Year 0, but the system will not be used

 

until Year 1. The school will use the manual system during development, and will switch

 

over to the new system during the month of June, to start the new school year on the new

 

system. Use $15.00 per hour for any rate not previously stated in the case.

 

Task(s)

 

1. Develop a PowerPoint that discusses the main points of prototyping. Provide

 

reasoning for whether or it should be used at this point in the project. Don?t forget

 

to provide speaker?s notes with each slide.

 

Note: Create a PowerPoint Presentation: Minimal 7 slides, excluding title and

 

reference slide.

 


 

2

 


 

 


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