Case Study Ringgold Pool and Patio

Topics: Net present value, Project management, Rate of return Pages: 5 (1456 words) Published: August 28, 2010
Table of Contents
Topic Page
John Jr.’s Plan3
Cost and Profits4
Exhibit 1: Project Scope Statement7
Figure 2: Approach to Project8
Figure 3: Revised Work Breakdown Structure9
Figure 4: Required Tools Breakdown10
Figure 5: Return of Investment (ROI) Calculations10
Figure 6: Net Present Value (NPV) for Next 5 Years10
Figure 7: Project Life Cycle (Effort vs. Time)11
Figure 8: Gantt Chart for Pool Installation11

Ringold’s Pool and Patio Supply is a small business specializing in above and below ground pools for home use. It is owned and operated by John Ringold, Sr. He recently hired his son, John Jr., as the executive vice-president of operations and has tasked him with investigation the profitability of installing above ground pools. Twenty percent of the company’s sales are above ground pools and Ringold’s does not currently install these pools. John Jr. must research the costs that would be incurred by the company to install these pools and investigate at what price the company would have to charge for installation to make it worth the company’s time. Exhibit 1 is the Project Scope Statement for this project. It details what the deliverables are to John Sr. upon completion of this project. In the exhibits and figures are a life cycle diagram for this project and a Gantt Chart for the installation of the pool. The life cycle of this project is the most common type in terms of effort. At the beginning, effort is low as data is being defined by the scope of the project. As the project progresses there is an increase in effort as research being done and data is actively collected. The final stage when effort tapers off is when the information is being organized into a coherent presentation. John Jr.’s Plan

John, Jr. has already conducted a Work Breakdown Structure (WBS) for the installation of a pool. Based off of this data, a pool would have to be constructed over a period of two days. The first day will include the preparation, laying the pool frame out, adding the plastic liner, and assembling the pool. The second day will be for building the wooden support and filling and testing the pool. This avoids exceeding the eight hour work day and adding of extra costs in overtime. However, these times are nominal and do not reflect the actual time that it would take to install the pool. John Jr. did not take into account basic human behavior. To correct his WBS and make it reflect the more likely timeline, I have added 12% to the times that John Jr. has estimated. This brings the total time to 13.8 hours. This revised schedule is demonstrated in the WBS shown in Figure 3. In this WBS, the total times for each major step have been adjusted for the 12% increase. This was not done in the sub-steps because the times were much smaller, making the 12% increase a matter of minutes and seconds.

When reconstructing this WBS, the amount of time needed to gather items for installation was not considered significant so it was left out of the timeline. Also, the post-installation cleanup and trash removal was not factored in. If this time is significant, it could add to the cost of labor. However, our analysis did not include it. Tools

In John Jr.’s plan, he did not take into account the costs that would be incurred to stand up a department or section of the company that will install the pools. The company will have to purchase tools and equipment for employees to use. The basic tools required for the installation of a pool will be purchased once the decision is made to go into the installation business. To provide for flexibility and the ability to install multiple pools on the same day, four sets of tools and supplies will be maintained at Ringold’s. It is expected that two sets will be replaced every year, making the lifespan...
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