Software Project Estimation Process

Objectives:

Purpose of project estimation is to establish estimates of project size, effort and cost.

Process Entry/Exit Criteria:

Entry Criteria

      Project scope, objectives, constraints and assumptions are defined.
      Appropriate Software Development Life Cycle (SDLC) model is selected.
      Project Milestones and customer deliverables are identified

Exit Criteria

      Project Size, Effort and Cost estimates are established.

Process Inputs/Outputs

Inputs

      Project Proposal/Statment of Work (Project cope, SDLC, Milestones and deliverables information)

Outputs

      Estimation Sheet

Tasks

1. Development Manager/Project Manager/Contact Person establishes estimates for project size, effort, resources, duration and cost on the basis of available information using Estimation Sheet template.

2. If Development Manager is not involved in the preparation process, Estimation Sheet is sent to Development Manager for review and approval

3. Development Manager reviews and updates the estimation sheet as required. Development Manager approves the estimation sheet.

4. After detailed requirements gathering and documentation, Development Manager/Project Manager determines if project scope is changed.

5. Incase of project scope creep, Development Manager/Project Manager conducts a scope creep assessment and revises the estimation sheet.

Guidelines for Project Estimation

1. Technosoft uses the Estimation Sheet based on COCOMO II estimation methodology to estimate the project size and effort.

2. Project Cost estimates may be kept separate from the project size and effort estimates; A Cost estimation sheet is used for this purpose and maintained by Development Manager.

3. Detailed guidelines for using Estimation sheet are available in the Estimation Sheet Template.

 

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