1. For a business of your choice, use a graphics program to develop a data-flow diagram of one of its main processes and an entity-relationship diagram showing the data within the scope of the system.
2. A project team has estimated the costs associated with the development and maintenance of a new system. One approach requires a more complete design and will result in a slightly higher design and implementation cost but a lower maintenance cost over the life of the system. The second approach cuts the design effort, saving some dollars but with a likely increase in maintenance cost.
a. Enter the following data in the spreadsheet. Print the result.
| Benefits of good design |
|
|
|
Good design |
Poor Design |
| Design Costs |
$14,000 |
$10,000 |
| Implementation cost |
42000 |
35000 |
| Annual Maintenance Cost |
32000 |
40000 |
b. Create a stacked bar chart that shows the total cost, including the design, implementation, and maintenance costs over an expected system life of seven years. Be sure that the chart has a title and that the costs are labeled on the chart.
c. Use your word-processing software to write a paragraph that recommends an approach to take and why