Software Release PERT Estimate

Software release three-point PERT

This PERT estimate uses optimistic, most likely and pessimistic durations for a software release. Planning releases feature development and documentation, while testing follows the feature build. Approval waits for both tested software and updated documentation before deployment. The three-point values let a delivery team discuss uncertainty instead of pretending every task has a fixed duration. It is a compact model for planning a release window, identifying the longest expected sequence and testing how a delayed build affects the likely launch date. Add review, change-control or monitoring work when it constrains the actual release.

類型 PERT／甘特圖標準 PMI PMBOK 7 + Moder 1983 (AON/PDM)引擎 schematex-pert更新時間 2026/9/24

需求

“Create a three-point PERT estimate for a software release: plan, build features, update documentation, test, approve and deploy the release.”

接著試試Add a three-point security review before approval.Change the likely build duration to eight days.

這張圖裡有什麼

看懂背後的決策。

01Parallel path

Documentation can proceed after planning.

02Test gate

Testing follows feature development.

03Approval gate

Approval requires documentation and testing.

Use when release durations are uncertain.

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常見問題

Why three values?

They capture optimistic, likely and pessimistic durations.

What can overlap?

Documentation and feature development follow planning.

What controls deployment?

Approval after documentation and testing.