estimation qms training. objective to arrive at accurate estimates for the project mahindra satyam...

Estimation

QMS Training

Objective

• To arrive at accurate estimates for the project

Mahindra Satyam ConfidentialMahindra Satyam Confidential 22

Estimation


Accurate Estimates areAccurate Estimates are

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Estimation

• For a Project, the Estimates are computed several times– At Project Acquisition Phase– At Project Planning Phase– During Project Execution Phase


Estimation at Project Acquisition Phase

• The Proposal team performs the estimation based on the inputs available at that phase


Estimation at Project Planning Phase

The PL • Performs the estimation based on

– the estimates at the Acquisition phase– further requirements obtained later

• Documents these estimates in the Broad Estimates section of the project plan

• Records the discrepancy, if any, between these estimates and the commitments made to the customer, along with the actions to be taken


Estimation at Project Planning Phase

The PL • Defines the phases / milestones / events at which

the estimates are to be re-visited• Documents these in the Estimation Schedule

section of the project plan


Estimation during Project Execution Phase

• The PL re-visits the estimates– Following the schedule documented in the project

plan, and/or– When any anomaly such as a slipped schedule or a

large change request, occurs in the project

• The PL performs the estimation based on– the current project requirements– the estimates from the earlier phases


Estimation

• The process for all these instances of Estimation is the same

• Different Estimation methods can be used for different instances in the same project, based on– Inputs Available – Past Data Available– Assumptions of method to match with those of

the project


Process


Select an Estimation Method

Perform the Estimation

Review the Estimates

Approve the Estimates

Select an Estimation Method

• PL/PM selects an appropriate method to be followed in the project based on the criteria defined

• Obtains the corresponding Estimation WorkSheet from QUALIFY

• If a different method is to be used, prepares the Estimation WorkSheet in line with the Formats available in QUALIFY– The Cover Page should be exactly the same as in the case of

available WorkSheets


Perform the Estimation• PL/PM

– computes the estimates for size, effort, schedule and resources based on selected Estimation Method using the Estimation WorkSheet

– uses the following inputs and document them in the Estimation WorkSheet:

• Appropriate past data from Mahindra Satyam’s Project Knowledge Base

• Data from the previous phases / work requests of the project


Review the Estimates

• PM and/or another PM/PL having sufficient knowledge on similar projects reviews the estimates – The Estimation Review Checklist and the

Review Report are used for recording and tracking this review

– These are attached to the Estimation WorkSheet


Approve the Estimates

• Pre-sales approves the estimates during pre-project stage

• PM approves the estimates during Project Planning and Project Execution

• This approval is recorded in the Estimation WorkSheet


Objective met

• The accurate estimates for the project are arrived at, when required
