Explain the steps used in project estimation

Explain the steps used in project estimation

Software Project Estimation
Once the project feasibility has been determined, the project manager starts the estimation activity. It is a
relatively difficult exercise and has not become an exact science. It is influenced by human, technical,
environmental, political factors. For software project estimation, a project manager can use historic data
about its organizations previous projects, decomposition techniques, and/or empirical models developed by
different researchers.