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Chapter 7. Estimation and Velocity

In this chapter I describe the concepts of estimation and velocity. I begin with an overview of the important roles that estimation and velocity play in agile planning. I then discuss the various items that we estimate and when and how we estimate them. The bulk of the chapter focuses on how to estimate product backlog items, including how to choose a unit of measure and use Planning Poker. Next I move on to the concept of velocity and how using a velocity range is essential for planning. I discuss how new teams can forecast velocity in the absence of historical data. I conclude with ways we can influence velocity and how velocity can be misused.


Cover of Essential Scrum: A Practical Guide to the Most Popular Agile Process


The previous lesson introduced the concept of velocity. This lesson goes into more detail on how to estimate and velocity to manage the pace of your team and plan appropriately.