There are two approaches to estimate tasks

• Gut-feel

• Estimate by analogy - A similarity between things on which you can base a comparison. 

  • Triangulate - compare it at least two other stories

When you estimate, it is OK to trust your gut or intuit...

Why planning poker works?

Here are some reasons for playing planning poker:

1. The people doing the work do the estimates

2. Estimator have to justify estimates

3. Most estimates are within one order of magnitude (most of them between 1 and 10, actually it should b...

Following is my rough notes from Mike Cohn’s Agile Estimating and Planning Course which I strongly recommend. I hope you will find some useful sentences within the lines.

Task Dependency

Task independence

Tasks are not independent in Software Development.

Central...