Software Time Estimates

This cluster focuses on the challenges, inaccuracies, and strategies for time estimation in software development, including frustrations with managers, tips for adding buffers, and why estimates often fail.

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Keywords

J.P MILLIONS LLM scribblethink.org romenrg.com THE GP TIME softestim.html kcsest.pdf estimate estimates estimating estimation task project team software accurate hours

Sample Comments

silveroriole Sep 3, 2020 View on HN

A try it yourself experiment: simply start giving accurate time estimates to project managers, and see how long it takes them to call you a pessimist :)

verdverm Apr 10, 2019 View on HN

How do you handle that time estimates never match reality?

watwut Dec 3, 2017 View on HN

Be glad. Worst is when managers estimate themselves.Be pessimistic, don't count happy flow only. Count also meetings and other organizational slowdowns into estimation. It can be anything between 30% to 200% of needed time depending on what politics on your company is.Break it down, and guess shortest time possible, longset time possible and them most likely time for each task. Then do (min+max+4×likely)/6 and sum them. The result will look intuitively too long, but resist tempta

penjelly Feb 10, 2022 View on HN

ah the famous "give us dev estimates, but yours are too long, lets go with shorter anyway" makes people afraid to estimate high

atmosx May 13, 2024 View on HN

Maybe you need to use a less optimistic task estimation formula?

jandudulski Apr 1, 2014 View on HN

Hi, when I need to estimate than I'm always adding some margin for unexpected work and this is such a case, especially in projects with lot of legacy code :)

amelius Jan 24, 2026 View on HN

Software time estimations are always going to be bad, you might as well ask an LLM.

tonymet Mar 12, 2024 View on HN

The best way to estimate is to start work and benchmark your progress against your estimates

jvdongen Apr 4, 2012 View on HN

Easy way out - if you estimated 3 days and it turns out to be 3 hours ... simply sit on it for 2 more days ;-)

bippi May 15, 2014 View on HN

I applaud the thought, but then they have to have an estimate of how long the estimate will take... which often ends-up wrong.