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A Step-by-Step Approach for Planning Your Small Project Dohn Kissinger, MBA, PhD, PMP Profit Solutions Planning for a small project is difficult. The PMBOK ® Guide (PMI, 1996) is an impressive document, which thoroughly discusses a generalized approach to planning and managing a project. The PMBOK ® approach is appropriate for large projects. However, project planning using the PMBOK ® approach takes a long time, sometimes months. Because of this long time, some project managers of small projects are inclined to skip the planning process altogether to get to the “real” part of the project.
Another problem with typical project plans is that there is no allowance for increases in duration or cost of each task. This lack of built-in schedule and cost contingencies leads to overruns in the project schedule and budget. One could ask, “What is the minimum level of planning required for a small project? ” In response to this question, I have developed a seven step approach that I believe answers this question. In addition to the usual schedule planning methodology, it creates schedule and budget contingencies for the project, protecting against schedule and cost overruns. I call these seven steps The 7 Steps to Project Success™.
Each step has a chart associated with it. The charts associated with each step are: 1. 2. 3. 4. 5. 6. 7. Project Success Chart™ Work Breakdown Structure Task Assignment Matrix Task duration table Project network diagram Gantt (bar) chart schedule Project budget chart To illustrate these steps, I will use a simple small project, making a birthday cake for my daughter’s birthday, as an example. Step 1 – Project Success Chart™ The Project Success Chart™, shown in Exhibit 1, lists the factors vital to the success of the project – the project objective, the project deliverable(s), and the project success criteria.
The project objective is what will be achieved by when. In our example project, the project objective is “Bake a cake in time for my daughter’s birthday party. ” The project deliverable(s) are what will be delivered by when. In this case, our project deliverable is one 2-layer chocolate cake with Pokemon decorations, in time for the birthday party. The project success criteria is what will meet or exceed the expectations of each stakeholder. The first step is to list all of the stakeholders. In this case, they consist of my aughter, her parents, and the birthday party guests. The expectations of my daughter are that the cake be chocolate, with Pokemon decorations, and that it be on time for the party. Profit Solutions 3270 Knollridge Drive El Dorado Hills, CA 95762 Creating Project Success! Ph (916) 939-3801 or (800) 9-PROFIT Fax (916) 939-3804 The expectations of her parents are that the cake be a reasonable cost, and that it be available on time. The expectations of the guests are that the cake be available in sufficient quantity, that it taste good, and that it be available in time.
The advantage of the Project Success Chart™ is that the elements of the project that enable its success can be communicated to the project team members in a very short period of time. Project Objective (what will be achieved by when) • Bake a cake in time for my daughter’s birthday party. Project Deliverables (what will be delivered by when) • One 2-layer chocolate cake with Pokemon decorations, in time for the birthday party. Success Criteria (what will meet or exceed the expectation of each stakeholder) Stakeholders Daughter Parents Birthday party guests Success Criteria Chocolate cake, Pokemon decorations, on time.
Reasonable cost, on time. Sufficient quantity, taste, on time. Exhibit 1. Project Success Chart™ Step 2 – Work Breakdown Structure The Work Breakdown Structure, shown in Exhibit 2, is one way of organizing all of the tasks in the project. The method used is to break the project objective (in this case, the birthday cake) into sub-objectives. For each sub-objective, I list the tasks necessary to achieve the sub-objective. In this case, the Make Cake sub -objective consists of 1) Look in cake recipe book, 2) Measure/mix cake ingredients, 3) Cool cake, and 4) Bake cake.
Notice that the tasks do not have to be listed in the correct time sequence. The important thing is to not miss a task necessary for the achievement of the sub-objective. The Make Frosting sub-objective consists of 1) Look in frosting recipe book, and 2) Measure/mi x frosting ingredients. The Purchase Ingredients sub-objective consists of 1) Drive to store, 2) Drive back from store, and 3) Buy decorations. Notice again that the tasks are not necessarily listed in the correct time sequence. In many projects, there is an integration function.
In this case, we must put the cake, frosting, and decorations together. I will call this the Perform Integration sub-objective, consisting of 1) Put decorations on cake, and 2) Slather frosting on cake. Profit Solutions 3270 Knollridge Drive El Dorado Hills, CA 95762 Creating Project Success! Ph (916) 939-3801 or (800) 9-PROFIT Fax (916) 939-3804 Birthday cake Make Cake Look in cake recipe book Measure/mix cake ingreds Cool cake Bake cake Make Frosting Look in frosting recipe book Measure/mix frosting ingreds Purchase Ingredients Drive to store Drive back from store Buy decorations
Perform Integration Put decorations on cake Slather frosting on cake Exhibit 2. Work Breakdown Structure (WBS) Step 3 – Task Assignment Matrix The Task Assignment Matrix, shown in Exhibit 3, lists the tasks and the task owners. In our case, we assign the cake making tasks to Dad, the frosting and integration tasks to Mom, and the purchase ingredients tasks to Grandpa. Thinking Grandpa might need some help with selecting the Pokemon decorations, we assign our son to help Grandpa with the Buy decorations task. Also, Dad is available to help Mom with the integration tasks.
And, of course, we need to get the approval for the decorations and their location on the cake from our daughter. Task Look in cake recipe book Measure/mix cake ingreds Cool cake Bake cake Look in frosting recipe book Measure/mix frosting ingreds Drive to store Drive back from store Buy decorations Put decorations on cake Slather frosting on cake Task Owner Dad Dad Dad Dad Mom Mom Grandpa Grandpa Grandpa Mom Mom Support Inform Approval Son Dad Dad Daughter Exhibit 3. Task Assignment Matrix Profit Solutions 3270 Knollridge Drive El Dorado Hills, CA 95762
Creating Project Success! Ph (916) 939-3801 or (800) 9-PROFIT Fax (916) 939-3804 Step 4 – Task Duration Table The Task Duration Table, shown in Exhibit 4, lists three estimates for each task – optimistic, most likely, a nd pessimistic. The optimistic values usually have a probability of occurring 10-20% of the time, the most likely values 50% of the time, and the pessimistic values about 80-90% of the time. These percentages can be varied depending on the schedule criticality of the project end date. At this point you may wonder what we going to do with all of these estimates.
I will address this in the next two sections. Task Look in frosting recipe book Measure/mix frosting ingredients Look in cake recipe book Measure/mix cake ingredients Bake cake Cool cake Drive to store Buy decorations Drive back from store Slather frosting on cake Put decorations on cake Optimistic Most likely Pessimistic Actual 20 10 20 10 40 30 10 10 10 5 20 30 20 30 20 50 60 20 20 20 10 30 60 40 60 30 60 90 30 40 30 20 40 Exhibit 4. Task Duration Table (in minutes) Step 5 – Project Network Diagram The Project Network Diagram, shown in Exhibit 5, shows the logical flow of tasks in the project.
After starting the cake project, we can either first look in the frosting recipe book, look in the cake recipe book, or drive to the store to buy the decorations. From our Task Assignment Matrix, we can see that we can do all of these tasks simultaneously, because we have assigned different resources to each of these tasks. Even if we have fewer resources, however, we have established that there are at least three paths of tasks available in our project. After we look in the frosting recipe book, we can measure/mix the frosting ingredients.
We are then ready to slather the frosting on the cake. However, we have to wait for the cake to be baked and cooled before we do this task. Profit Solutions 3270 Knollridge Drive El Dorado Hills, CA 95762 Creating Project Success! Ph (916) 939-3801 or (800) 9-PROFIT Fax (916) 939-3804 After we look in the cake recipe book, we can measure/mix the cake ingredients, bake and cool the cake. The cake is then ready for the frosting. After Grandpa drives to the store, buys the Pokemon decorations (with my son’s help), and drives back from the store, we can put the decorations on the cake.
However, we have to wait for the frosted cake before we put the decorations on it. After we complete all of these tasks in these three parallel paths, the cake is complete and ready for the birthday party. Look in frosting recipe book Measure/mix frosting ingredients Start cake Look in cake recipe book Measure/mix cake ingredients Bake cake Cool cake Slather frosting on cake Drive to store Buy decorations Drive back from store Put decorations on cake Complete cake Exhibit 5. Project Network Diagram The Critical Path is the longest path of the project.
To determine the Critical Path, we combine the results above with o ur Task Duration Table from Step 4. From the Task Duration Table, we use the most likely estimates of task duration to determine the longest path in the project, or Critical Path. This path is shown in Exhibit 6 as the shaded tasks – Look in cake recipe book, Measure/mix cake ingredients, Bake cake, Cool cake, Slather frosting on cake, and Put decorations on cake. The parallel paths to the Critical Path are called feeding paths, because they feed into the Critical Path.
We have two feeding paths in our project – 1) Look in frosting recipe book, and Measure/mix frosting ingredients, and 2) Drive to store, Buy decorations, and Drive back from store. Profit Solutions 3270 Knollridge Drive El Dorado Hills, CA 95762 Creating Project Success! Ph (916) 939-3801 or (800) 9-PROFIT Fax (916) 939-3804 Look in frosting recipe book Measure/mix frosting ingredients Critical Path Start cake Look in cake recipe book Measure/mix cake ingredients Bake cake Cool cake Slather frosting on cake Drive to store Buy decorations
Drive back from store Put decorations on cake Complete cake Exhibit 6. Project Network Diagram with Critical Path Step 6 – Gantt (Bar) Chart Schedule We would like to use the information in our Task Duration Table from Step 4 to determine a contingency to protect the project due date from schedule overruns. Goldratt (Goldratt, 1997) has proposed a simple method of calculating this contingency, which he terms a project buffer. This buffer is placed at the end of the Critical Path to protect against overruns in the duration of the tasks on the Critical Path. We assume that the feeding paths have sufficient leeway, or schedule float, to allow for schedule overruns in the feeding tasks. ) Listing only the Critical Path tasks, as shown in Exhibit 7, we see that the pessimistic estimates for the Critical Path tasks total to 300 minutes, and the most likely estimates total to 200 minutes. Goldratt’s suggestion is that we take half of the difference between the total of the pessimistic and most likely estimates as the project buffer, which in this case would be 50 minutes.
Critical Path Task Look in cake recipe book Measure/mix cake ingreds Bake cake Cool cake Slather frosting on cake Put decorations on cake Totals Optimistic Most likely Pessimistic Actual 20 10 40 30 5 20 30 20 50 60 10 30 200 60 30 60 90 20 40 300 Exhibit 7. Critical Path Tasks Profit Solutions 3270 Knollridge Drive El Dorado Hills, CA 95762 Creating Project Success! Ph (916) 939-3801 or (800) 9-PROFIT Fax (916) 939-3804 We can then construct the Gantt (bar) chart for our project, including the 50 minute project buffer.
The completed Gantt chart, shown in Exhibit 8, indicates that if we start the birthday cake project by 8 am, we should have it ready for the birthday party scheduled for 12:30 pm in the afternoon. ID 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Task Name Birthday Cake Project Start cake Look in frosting recipe book. Measure/mix frosting ingredients Look in cake recipe book. Measure/mix cake ingredients Bake cake Cool cake Drive to store Buy decorations Drive back from store Slather frosting on cake Put decorations on cake Project buffer Complete cake 8:00 AM 9:00 AM 10:00 AM 11:00 AM 12:00 PM 45 0 15 30 45 0 15 30 45 0 15 30 5 0 15 30 45 0 15 30 1/11 Critical Path 1/11 Exhibit 8. Gantt (bar) Chart Schedule Step 7 – Project Budget Chart We would like to calculate the budget for the project to ensure that it meets the “reasonable cost” success criteria specified in the Project Success Chart™ by the parents. As shown in Exhibit 9, cost estimates for each task are listed in terms of optimistic, most likely, and pessimistic. Again, the optimistic values usually have a probability of occurring 10-20% of the time, the most likely values 50% of the time, and the pessimistic values about 80-90% of the time.
We then calculate the budget based on the most likely cost values plus a budget contingency. The contingency is computed using the Goldratt approximation of 50% of the difference between the pessimistic values and the most likely values. In our project, the most likely cost estimates total to $9. 00, and the pessimistic estimates total to $16. 00. Taking half of the difference between the pessimistic estimate and the most likely estimates gives us a budget contingency of $3. 50. Adding this budget contingency to the most likely total of $9. 0 gives us a budget of $12. 50. We can then use this budget value to determine if this is a “reasonable cost” according to the parents’ success criteria. Profit Solutions 3270 Knollridge Drive El Dorado Hills, CA 95762 Creating Project Success! Ph (916) 939-3801 or (800) 9-PROFIT Fax (916) 939-3804 Task Look in frosting recipe book Measure/mix frosting ingredients Look in cake recipe book Measure/mix cake ingredients Bake cake Cool cake Drive to store Buy decorations Drive back from store Slather frosting on cake Put decorations on cake Totals
Optimistic Most likely Pessimistic Actual 0 . 50 0 1. 00 . 25 0 . 50 2. 00 . 50 0 0 4. 75 0 1. 00 0 2. 00 . 50 0 . 75 4. 00 . 75 0 0 9. 00 0 2. 00 0 3. 00 1. 00 0 1. 00 8. 00 1. 00 0 0 16. 00 Budget contingency = 0. 50 x (Pessimistic total – Most likely total) = 0. 50 x ($16. 00 – $9. 00) = $3. 50 Budget = Most likely total + Budget contingency = $9. 00 + $3. 50 = $12. 50 Exhibit 9. Project Budget Chart (in dollars) Conclusions For small projects, the PMBOK ® approach can be overwhelming. Project managers of small projects need a simpler process for planning their projects.
The step-by-step approach I have described will enable them to produce faster project plans, and it will help protect against project schedule and cost overruns. References A Guide to the Project Management Body of Knowledge (PMBOK ® Guide), 1996, Project Management Institute, Newtown Square, PA. Goldratt, Eliyahu M. , Critical Chain, 1997, The North River Press, Great Barrington, MA. Profit Solutions 3270 Knollridge Drive El Dorado Hills, CA 95762 Creating Project Success! Ph (916) 939-3801 or (800) 9-PROFIT Fax (916) 939-3804