So you have a LARGE backlog and you have decided that you need to estimate it.

Not on board? Still undecided? Go read my previous post on the tradeoffs between estimating and not estimating large backlogs.

Still reading? Ok, let’s get to it!

You can do larger scale estimation in MANY ways. What I will share with you here is just one way I have found to do it effectively, with enough accuracy at a reasonable cost. It requires some pre-conditions, such as having a team with an established way of working and some way of estimating on the team level, so it may not fit your situation. But if it does it is probably worth your time to check out.

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Estimation seems to have gotten a bit of a bad reputation lately.

One misconception I sometimes see is that estimation beyond just a few weeks is “not agile”. Another trend is that some people advocate against doing estimation at all mostly because they view it as a beginner tool, so by not estimating we are no longer beginners.

To me doing estimation or not does not really say much about “how agile you are”. The way I look at it is that we should estimate when the reasons to do so outweigh the reasons not to do so. That simple.

In some scenarios this also includes doing estimation of large backlogs.

So in this article I want to share what I see as some of the reasons FOR and AGAINST doing estimation of a larger backlog. You can then decide for yourself if your situation justifies doing it or not.

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One of the most common questions we get is whether to estimate in time or points. It seems like points are used only “to avoid thinking about time” and they are essentially the same. Wrong.

Let us give you the travel metaphor to give you an idea about how we are thinking.

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Estimation of the effort to implement and deliver a set of functionality is an important but not always the most fun part of product development. Estimations are done at different detail levels during the project, for example the high level story estimation and the low level task estimation. It is a few years since I did task estimation; many times it is a waste of time doing low level estimations, so in the following text I will describe a technique that I like when estimating the user stories.

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Me and Oscar is currently working on a small project, just to learn JavaFX.

We stumbled on some nasty crashes which we at first did not understand.

ArrayIndexOutOfBoundsException? Is there a bug in JavaFX?

It turned out to be a callback from Java. Let us see how we got there.

   Now you can finally order planning poker decks from our site :o)