4.Suppose that Sky-High is predicting 25 percent annual growth, on a current base of 90,000 customers. If the growth pattern holds, how many customers will Sky-High have in three years? If it takes about 12 minutes to enter a new customer into the system, how many additional data entry operators will be needed to handle the growth next year? Assume that an operator works about 2,000 hours per year. Also assume a 30 percent annual attrition rate for existing customers. In this assignment, students must calculate staffing needs based on specific assumptions. Answers might vary, depending on assumptions used. The main goal is to have students apply realistic methods and accurate calculation skills. The sample spreadsheet shown below is based on the facts stated in the assignment, and fractional staffing is rounded up or down to a whole number.
Systems Analysis and Design, Ninth Edition Page 16 of 37 4 Castle Point Antique Auction Situation: Castle Point Antique Auction operates a successful Web site that offers an auction forum for buyers and sellers of fine antiques. Monica Creighton, the owner, asked you to help her design some new documents and reports. 1.Suggest the general layout for a Web-based source document that prospective bidders would submit. The information should include user ID, password, name, address, telephone, e-mail address, item number, bid offered, and method of payment (money order, check, American Express, MasterCard, or Visa). Suggest to students that they view real-world examples of Internet auction site documents before completing their own designs. The Web has numerous examples, and excellent models are readily available. This chapter contains many tips and suggestions about form design. You might ask class members to critique various sites and develop a checklist of do’s and don’ts for designing the required documents. 2.Suggest the general layout for a Web-based source document that prospective sellers could use to describe their antiques. The information should include the user ID, password, item, dimensions, origin, condition, and asking price. This assignment is similar to the previous one. Again, suggest to students that they view real-world examples of Web-based item description forms for auction sites. Also remind them to apply tips and suggestions described in the chapter. Answers will vary — the objective is to come up with realistic, effective examples that demonstrate good design principles. 3.Write a brief memo to Monica explaining the difference between detail reports, exception reports, and summary reports. Suggest at least one example of each type of report that she might want to consider. For each report, student responses should include characteristics and examples similar to the following.
Systems Analysis and Design, Ninth Edition Page 17 of 37 Report Type Characteristics Castle Point Examples Detail A detail report produces one or more lines of output for each record processed. Each line of output printed is called a detail line. All the fields in the record do
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