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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.




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





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.




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.







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