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Planning the Agile Way: Methods and Tools
Software Engineering · Chapter 13: Project Management, Planning, and Agile GovernanceSection 13.4 · lesson 83 of 1037 min · free with a free account
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In this lesson
Plan loosely and further out - plan tightly and only just ahead.
- Distinguish release planning from sprint planning
- Explain story points, and why teams size work relatively
- Explain the factors that drive backlog prioritization
- Use velocity to turn a prioritized backlog into a sprint plan
Transcript
Everything said in the video, section by section (981 words). Read along, or search it.
Project Management, Planning, and Agile Governance
Planning the Agile Way: Methods and Tools
Agile planning takes a particular shape. Plan loosely and further out, and plan tightly, only just ahead. This section covers the techniques that make that shape work in practice, from release plans and story points, to backlogs and velocity.
A Plan That Became Fiction
26 Weeks, Day by Day
On day one of a six-month project, a team commits to a task-by-task schedule. It names exactly what will be built, on exactly which day, for the next twenty-six weeks. Two months in, priorities have shifted, and several tasks turned out harder than expected. The schedule is already fiction that nobody follows. Planning did not fail because the team was bad at it. A single detailed plan simply cannot survive twenty-six weeks of changing reality. So agile planning plans loosely further out, and tightly, only just ahead.
2 Zoom Levels
Release Planning and Sprint Planning
That gives planning two zoom levels. Release planning covers what will be delivered across several upcoming iterations, toward a larger milestone. It answers roughly what will exist, and roughly when. And it stays coarse, because it looks further ahead. Sprint planning covers the very next iteration. It answers exactly what will be built this cycle, and by whom. It can afford to be far more concrete, because the horizon is much shorter. And each one is informed by what the last sprint taught.
Table 1
The 2 Levels Compared
Here are the two levels side by side. Release planning spans several sprints, often months. Sprint planning covers only the next single sprint. Release planning is rough. What, and roughly when. Sprint planning is concrete. Exactly what, and by whom. And release plans are revisited periodically, as priorities shift. Sprint planning happens every sprint, without exception.
Story Points
Sizing Work Relatively
A story point is a relative unit of measure for a backlog item's effort, complexity, and uncertainty. It is not a direct measure of time. Teams often prefer relative sizing, because people are far better at judging that one item is about twice as much work as another. They are much worse at judging its exact duration in hours, especially before the work has started. A team's velocity is the number of story points it completes per sprint, on average. Velocity turns a backlog's total points into a rough number of sprints, connecting estimation back to release planning.
Table 2
Story Points vs. Time Estimates
Here is how story points compare with time-based estimates. Story points measure relative effort, complexity, and uncertainty. Time estimates measure absolute duration, in hours or days. Story points are most reliable before work starts, when comparing items to each other. Time estimates become reliable once the work is familiar. And story points feed into velocity and release forecasting, while time estimates feed into a specific date commitment.
Table 3
What Drives Backlog Priority
The backlog is the full, ordered list of work not yet done. Prioritization decides the order in which items are addressed. It commonly weighs four factors. Business value, meaning how much benefit an item delivers. Urgency and dependency, meaning whether other work is waiting on it first. Risk and uncertainty. Tackling an uncertain item early surfaces problems while there is still time to adapt. And the effort required, drawn from the item's story-point estimate.
Figure 4
The Velocity Waterline
Here is how it comes together at sprint planning. This team's velocity is ten points. Its backlog, in priority order, holds A at four points, B at three, C at five, and D at two. A and B come to seven points, comfortably under the line. Adding C would reach twelve, over the waterline. So the team pulls in the smaller D instead, using nine of its ten points.
Backlog to Sprint
Arithmetic, Not Guesswork
So the sprint plan comes out of a few simple steps. Check the velocity, to gauge roughly how many points the team can take on. Work down the prioritized backlog, pulling items in until that capacity is reached. When the next item will not fit, a smaller item further down can fill the remaining capacity, rather than leaving it unused. Then break each pulled item into smaller tasks for the sprint. The order and the velocity turn this into arithmetic, rather than guesswork.
Table 4
Tools That Support Agile Planning
A few practical tools make these techniques easy to run day to day. A digital backlog board keeps the prioritized list, its estimates, and its status visible to the whole team. A burndown chart plots the story points remaining in a sprint against time, so it is visible early whether the team is on pace. And a release burnup or roadmap view tracks cumulative progress toward a larger release, across several sprints.
Apply It
Hours, to Within 10%
Let's apply that. A team assigns precise time estimates, in hours, to every backlog item. And it insists they be accurate to within ten percent, before anyone has started the work. Estimation meetings now take hours, and are frequently wrong anyway. What went wrong? The team demanded a precision that absolute time estimates cannot honestly provide before the work begins. That creates false confidence, not real accuracy. Story points exist to avoid that trap. They ask a question people can answer honestly, which is relative size.
Key Terms
The Vocabulary of This Section
Let's lock in the key terms. Release planning covers what will be delivered across several upcoming iterations. Sprint planning covers exactly what will be built in the very next one. A story point is a relative unit of an item's effort, complexity, and uncertainty. Velocity is the number of story points a team completes per sprint, on average. Backlog prioritization is deciding the order in which backlog items are addressed. And a burndown chart plots the story points remaining in a sprint against time.
Key Takeaways
What to Carry Forward
To pull this together. Release planning stays rough and looks several sprints ahead. Sprint planning is concrete, and covers only the next one. Story points size work relatively, which people estimate more reliably than hours, before work has started. Backlog prioritization weighs business value, urgency and dependency, risk and uncertainty, and effort. Velocity decides how much of the prioritized backlog fits into the next sprint. And tools like backlog boards, burndown charts, and roadmaps keep all of it visible to the whole team.
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