Understanding sprints

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The content on this page only applies to Scrum teams.

Scrum teams work in sprints (or iterations), and these teams release incremental features of their product at the end of each sprint. If you're planning work for Scrum teams, we highly recommend that you use the corresponding boards as the issue sources in your plan, and not projects.

Using Scrum boards as issue sources lets you manage the sprints that come from those boards, plan the capacity of future sprints, and assign issues to sprints — all directly from your Portfolio plan. More importantly, if you use the project as an issue source, Portfolio cannot readily associate the sprints of that board with the project. The sprints will then appear as external sprints in your plan.

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What is a sprint?

スプリントとは、スクラム チームが課題に取り組む固定された期間のことで、チームはこの期間で課題を完了することにコミットします。チームの仕組みに応じて課題をストーリーやバグ修正に特化させることができます。スクラム チームでは通常、スプリントの終了時に、完了したすべての課題をまとめてバンドル化し、ソフトウェア製品のバージョンとしてリリースします。

In both Jira and Portfolio for Jira, a sprint is a 2-week period by default, which is essentially 10 working days. Depending on team size and capacity, you can adjust the number of days in a sprint as needed.

スプリントを表示する

プランで各チームのスプリントを表示できるように、すでに課題をチーム別にグループ分けしていることを確認してください。課題がチーム別にスイムレーンにグループ分けされ、各スプリントのキャパシティの詳細が表示されます。

1

Issues are grouped in team swimlanes. Expand the team to show the issues assigned to that team.

2Clicking the capacity bar of a sprint will display the capacity details for each sprint.
3まとめられた値を表示するようにプランを設定している場合は、子課題から対応する親課題までのスプリント値がまとめられます

スプリントの種類

完了したスプリント

Any sprints that have been completed in Jira Software will display as completed sprints in the timeline of a Portfolio plan.

プランのタイムラインでの完了したスプリントの例

You can choose to view the sprint in Jira Software, as well as filter the issues by the sprint in your plan.

既定では、完了した課題は完了の 30 日後にプランに表示されなくなります。この設定は変更できますが、変更すると、完了したスプリントのキャパシティの詳細では、プランからなくなった完了済みスプリントに割り当てられた完了済みの課題が考慮されなくなります。


Sprint details include...
  • Name of the sprint
  • Duration of the sprint and its status, where the lozenge appears as completed
  • Percentage of completed issues in the sprint
  • Percentage of how full the sprint was in terms of estimated units
  • Number of unestimated issues and unassigned issues in the sprint
過去のスプリント

If by chance a team has not defined any sprints in the past, but it already has a currently active sprint and some sprints following that, Portfolio will display these past sprints in the timeline. Portfolio for Jira can infer the dates of these past sprints, based on the sprint duration and velocity set for the team, and can thereby display these past sprints.

プランのタイムラインでの過去のスプリントの例

Note that since past sprints do not really exist in the first place, so there are no capacity details that can be displayed.

アクティブ スプリント

Any sprints that are currently in progress in Jira Software will display as active sprints in the timeline of a Portfolio plan. Note that in Jira Software, a sprint can only be given its start and end dates when it's started, and thus become an active sprint.

プランのタイムラインでのアクティブ スプリントの例

Based on the sprint duration and velocity set for the team, Portfolio is able to auto-schedule work into these active sprints as needed. Any issues that go beyond the velocity of active sprints will be allocated into future sprints or projected sprints.

You can choose to view the sprint in Jira Software, as well as filter the issues by the sprint in your plan.

Sprint details include...
  • Name of the sprint
  • Duration of the sprint and its status, where the lozenge appears as active
  • Percentage of completed issues in the sprint
  • Percentage of how full the sprint is in terms of estimated units
  • Number of unestimated issues and unassigned issues in the sprint
将来のスプリント

Any sprints that already exist in Jira Software, and are scheduled after a currently active sprint, will display as future sprints in the timeline of a Portfolio plan.

プランのタイムラインでの将来のスプリントの例

Even if a sprint can only be given its dates when it becomes active, Portfolio is able to infer the dates of these future sprints, based on the sprint duration and velocity set for the team. This is why future sprints can be displayed in the timeline.

Based on the sprint duration and velocity set for the team, Portfolio is able to auto-schedule work into these future sprints as needed. Any issues that go beyond the velocity of active sprints will be allocated into these future sprints.

You can choose to view the sprint in Jira Software, as well as filter the issues by the sprint in your plan.

Sprint details include...
  • Name of the sprint
  • Duration of the sprint and its status, where the lozenge appears as future
  • Percentage of how full the sprint is in terms of estimated units
  • Number of unestimated issues and unassigned issues in the sprint
提案されるスプリント

Since Portfolio is able to infer the dates of sprints that can happen in the future, then any sprints that are projected to happen after the future existing sprints can also be displayed in the timeline.

Because these sprints do not exist in Jira Software, these will then be displayed as projected sprints. Note, however, that the name of the sprint will just be "Projected sprint" because the sprint does not exist in the first place.

プランのタイムラインでの提案されるスプリントの例

Based on the sprint duration and velocity set for the team, Portfolio is able to auto-schedule work into these projected sprints as needed. Any issues that go beyond the velocity of existing future sprints will be allocated into these projected sprints.

You can choose filter the issues by the sprint in your plan.

Sprint details include...
  • Name of the sprint
  • Duration of the sprint and its status, where the lozenge appears as projected
  • Percentage of how full the sprint is in terms of estimated units
  • Number of unestimated issues and unassigned issues in the sprint
外部スプリント

If a plan is using projects or filters as issue sources, sprint data will still be displayed for the corresponding issues. However, the sprints will be displayed with the EXTERNAL SPRINT lozenge next to them.

Because sprints can only be directly associated with board issue sources, then the lozenge indicates that the sprints are not directly associated with project and filter issue sources.

外部スプリントに割り当てられた課題

外部スプリントの取り扱いの詳細については、「スプリントに従った課題のスケジュール」をご覧ください。

スプリントにおける見積りとベロシティ

There are several ways to estimate the issues you're working on. Depending on how your team works, you can estimate issues using story points or time-based estimates (days or hours).

The main objective though should be to get better at predicting how much work a team can complete in each sprint. This translated to knowing the team's velocity.

Velocity measures the number of 'estimation units' that a team usually completes from sprint to sprint. It is effectively a productivity rate based on an estimation of volume of work, and it is best worked out in a measure other than 'time'.

We recommend using story points instead of time-based estimates. If you estimate that a story will take 16 hours to complete, there's no guarantee that that estimate is 100% accurate. Story points, on the other hand, focus on estimating the size of an issue. A trivial bug fix may be estimated at 1 or 2 story points. A bigger feature that needs some prior research, however, may be estimated at 8 or 10 story points. Learn more about story point estimation.

Scheduling issues according to sprints

Before you begin, note that this only applies to issues sourced from Scrum boards and when issues are assigned to Scrum teams.

When a team and a sprint are set for an issue, the target start and end dates of that issue are automatically derived from the assigned sprint.

Sample plan, with target dates of issue aligning with sprint dates

追加情報:

  • You can still change the target dates of an issue if needed, even if the target dates are automatically derived from the assigned sprint.
  • If you reschedule an issue and its target dates no longer match the dates of the assigned sprint, this will not change the sprint assignment.

詳細については、「課題のスケジューリング」をご覧ください。

最終更新日 2019 年 11 月 20 日

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