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Hope Quote by Steve McConnell

“developers' estimates tend to have an optimism factor of 20 to 30 percent” quote by Steve McConnell
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““developers' estimates tend to have an optimism factor of 20 to 30 percent””

Steve McConnell

About This Quote

Developers’ time estimates are habitually overly optimistic by about 20‑30 %.

In simple terms: Estimates are usually too hopeful.

Key Takeaway

Adjust estimates for realistic buffers.

Themes

project management software development estimation

Mood

pragmatic cautious

Type

technical advice

When to use this quote

  • software planning
  • client negotiations
  • team sprint planning

Key Concepts

optimism bias risk management

Questions to Reflect On

  • How can you improve estimate accuracy?
  • What buffers can you add without waste?
A Different Perspective

Over‑optimism can erode trust if not managed.

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