The Scrum methodology of agile software development marks a dramatic departure from waterfall management. In fact, Scrum and other agile processes were inspired by its shortcomings. The Scrum methodology emphasizes communication and collaboration, functioning software, and the flexibility to adapt to emerging business realities — all attributes that suffer in the rigidly ordered waterfall paradigm.

20th
DEC

Introduction to Scrum Video

Posted by admin under Agile and Scrum, Agile Manifesto, Agile Principles, Scrum Basics

A colleague of mine, Michael James, just posted his Introduction to Scrum video on YouTube. You might want to take a look and/or pass this link to your colleagues. The full series is available at http://ScrumTrainingSeries.com.

I think is the right length and depth for an overview of Scrum – it’s not so short as to be trite (or worse, incorrect), but it’s not an exhaustive examination of Scrum either. This video is good prep for people who are planning to enter a ScrumMaster class and don’t want to go in cold. It is also good for stakeholders around the company who want an understanding of Scrum so that they can work better with their development teams.

I’d be very interested in hearing your views of this video.

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12th
DEC

Complexity and cost of change

Posted by admin under Agile and Scrum, Scrum Basics, Scrum Discussion

There are many variables to estimating the difficulty of a code changes. We could talk about things like the complexity of the code (Cyclomatic Complexity), the experience of the programmers, their familiarity with the topic and/or the specific module, the quality of documentation, etc. It ends up being a fairly subjective estimate. In Scrum teams, story sizes are estimated in relative terms in terms of story points.

The primary benefit to using a technique involving Relative Estimates is that you are asking the team to give you an estimate of difficulty relative to other work that has already been completed. This means that a team can easily give judgments like “This will be twice as hard as that” and come up with functional estimations for predictions without spending a great deal of time coming up with them. Estimates are just subjective guesses anyway, understanding that can be a valuable way to put more time into building something and less time into trying to guess how much time it will be to build it. Planning Poker, also called Scrum poker, is one technique for building relative estimates and for coming to consensus on the effort or relative size of the stories.

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