Ø The wideband Delphi estimation process is especially useful to a project management and produces several development of the project.
Ø The most important product is the set of estimation upon which the project schedule is built.
Ø The project team creates the work breakdown structure (WBS).
Ø WBS is the critical element of the plan.
Ø They also generates the list of assumptions, which can be added to the vision and scope document.
Ø Wideband Delphi works because it requires the entire team to correct one another in a way that helps to avoid errors and poor estimation.
THE DELPHI PROCESS
Ø To use the wideband Delphi, the project manager selects a moderator and an estimation team with three to seven members.
Ø The process consists of two meetings run by the moderator.
Ø The first meeting is the KICKOFF MEETING, during which the estimation team creates WBS and discuses assumptions.
Ø After the meeting, each team member creates an effort estimate for each task.
Ø The second meeting is the ESTIMATION SESSION in which the team estimates the group and achieves consensus.
Ø After the estimation session the project manager, summarizes the result and review them.
CHOOSING THE TEAM
Ø Picking the qualified team is an important task.
Ø Each team member must be willing to make an effort to estimate each effort.
Ø The estimation should be knowledgeable enough about the organizations needs.
Ø The role of the moderator is to ask open ended questions.
Ø A well choose team will allow the moderator to sit out on the estimation effort and remain neutral and open-minded during the discussion.
Ø The project manager should choose the team ,it should include people that she is comfortable working with.
Ø The team should include people that she is comfortable working with.
KICKOFF MEETING
Ø The goal of the kickoff meeting is to prepare the estimation session.
Ø When the kickoff meeting is scheduled,each team member is given the vision and scope of the document.
Ø The team member should read all of the material before attending the meeting.
Ø The goal statement for the estimation session should be agreed upon the project manager and the moderator.
Ø The team discusses the product being developed and brainstorming any sessions.
Ø The team agrees on the unit of estimation.
Ø The must agree on the goal of the estimation session before proceeding with the rest of the estimation process.
INDIVIDUAL PREPARATION
Ø After the kickoff meeting,the moderator writes down all of the assumptions and tasks that were generated by the team during the kickoff meeting and distributes them to the estimation team.
Ø Each team member builds preparation results by first filling the task and then estimating the effort for each task.
ESTIMATION SESSION
Ø The estimation session starts with each estimator filling out an estimation form.
Ø Blank estimation should be handed out to the meeting participants,who fill the tasks and their initial estimates from the individual preparation.
Ø At the point the participants fill out the estimation forms.
Ø The estimation form contains one row for each task being estimated.
Ø Each participants starts with a blank form and write the name of each task in consecutive rows
ASSEMBLE TASKS
Ø After the estimation meeting is finished,the project manager works with the moderator to gather all the results from the individual preparation and estimation team.
Ø The final task will be in same format as the estimation tasks.
REVIEW RESULTS
Ø Once the results are ready,the project manager calls the final meeting to review the estimation results with the team.
Ø The goal of the meeting is to estimate whether the results of the session are sufficient for further planning.
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