Story Points in estimating work

One of effective way to estimate the work in software development is to use Story points. The story points are based on size and complexity, not duration.  They are also become unitless, they not measured by time or another units. One other good quality of story points is that they are additive, unlike time. Also they extremely easy to understand.

Story point values

It’s always important to use the units that make sense. Many teams use such unit sets:

–  T-Shirt sizing: XS, S, M, L, XXL
– Fibonacci Sequence: 1, 2, 3, 5, 8, 13, 20, 40
– The power of two: 1, 2, 4, 8, 16, 32

With the using of this units, it should be also a right strategy. By asking: “How big is this work in sequence from 1 to 10?” it will be very hard to make a good estimation.
The estimation should be used in historical prospective. It is better ask something like this: “Last time we did that work 5 points. Is this work bigger or smaller? How bigger? Two times, three times?”

And the last, but not least. Estimation is not a promise. It’s always a chance that the work can take more or less time. So don’t worry so much.

Related Post

Definition of DONE in Software Developent Let’s imagine, that at the end of every iteration in SCRUM or any other Agile Software Development method, the developer is coming to you and saying: "I'm done with this functionality!" But you of course ask: "What do you mean done? Are you done or...
Integration Team in Multi-team Scrum If one team in Scrum not enough, it's advisable use Multi Team. But here you get one more problem - how to manage more than one team. And the answer: use the Integration team. With Multi Team your Scrum will look a little bit different. Multi-team...
User Stories User Stories are an Agile term for what traditionally have been called "software requirements". They are a brief statements of the intent or need that the system must do for a particular users. Here is the basic formula of writing a user story: A...
How do you make Scrum under Waterfall? Very often the Scrum under Waterfall exist in organisations. It might not exist formally, but it can be required by contract or by law. The Scrum can be part of the Agile experiment. The Scrum under Waterfall be because it's practically for the or...