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href="/zh/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_OVgt"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item"><a class="breadcrumbs__link" itemprop="item" href="/zh/docs/v0.18/Metrics"><span itemprop="name">Metrics</span></a><meta itemprop="position" content="1"></li><li itemscope="" itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Requirement Lead Time</span><meta itemprop="position" content="2"></li></ul></nav><span class="theme-doc-version-badge badge badge--secondary">版本：v0.18</span><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">本页总览</button></div><div class="theme-doc-markdown markdown"><header><h1>Requirement Lead Time</h1></header><h2 class="anchor anchorWithStickyNavbar_LWe7" id="what-is-this-metric">What is this metric?<a class="hash-link" href="#what-is-this-metric" title="标题的直接链接"></a></h2><p>The amount of time it takes a requirement to deliver.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="why-is-it-important">Why is it important?<a class="hash-link" href="#why-is-it-important" title="标题的直接链接"></a></h2><ol><li>Analyze key projects and critical points, identify good/to-be-improved practices that affect requirement lead time, and reduce the risk of delays</li><li>Focus on the end-to-end velocity of value delivery process; coordinate different parts of R&D to avoid efficiency shafts; make targeted improvements to bottlenecks.</li></ol><h2 class="anchor anchorWithStickyNavbar_LWe7" id="which-dashboards-does-it-exist-in">Which dashboard(s) does it exist in<a class="hash-link" href="#which-dashboards-does-it-exist-in" title="标题的直接链接"></a></h2><ul><li><a href="https://devlake.apache.org/livedemo/DataSources/Jira" target="_blank" rel="noopener noreferrer">Jira</a></li><li><a href="https://devlake.apache.org/livedemo/DataSources/GitHub" target="_blank" rel="noopener noreferrer">GitHub</a></li><li><a href="https://devlake.apache.org/livedemo/OSSMaintainers/CommunityExperience" target="_blank" rel="noopener noreferrer">Community Experience</a></li></ul><h2 class="anchor anchorWithStickyNavbar_LWe7" id="how-is-it-calculated">How is it calculated?<a class="hash-link" href="#how-is-it-calculated" title="标题的直接链接"></a></h2><p>This metric equals <code>resolution_date - created_date</code> of issues in type "REQUIREMENT".</p><b>Data Sources Required</b><p>This metric relies on issues collected from Jira, GitHub, or TAPD.</p><b>Data Transformation Required</b><p>This metric relies on the 'type-requirement' configuration in Jira, GitHub or TAPD's transformation rules while adding/editing a blueprint. This configuration tells DevLake what issues are <code>requirements</code>.</p><b>SQL Queries</b><p>The following SQL shows how to find the lead time of a specific <code>requirement</code>.</p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain">-- lead_time_minutes is a pre-calculated field whose value equals 'resolution_date - created_date'</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">SELECT</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> lead_time_minutes/1440 as requirement_lead_time_in_days</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">FROM</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> issues</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">WHERE</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> type = 'REQUIREMENT'</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><p>If you want to measure the <code>mean requirement lead time</code> in the screenshot below, please run the following SQL in Grafana.</p><p><img loading="lazy" src="/zh/assets/images/requirement-lead-time-monthly-297def3418d5bf1a6caf63114552aba4.png" width="1257" height="375" class="img_ev3q"></p><div class="codeBlockContainer_Ckt0 theme-code-block" style="--prism-color:#393A34;--prism-background-color:#f6f8fa"><div class="codeBlockContent_biex"><pre tabindex="0" class="prism-code language-text codeBlock_bY9V thin-scrollbar"><code class="codeBlockLines_e6Vv"><span class="token-line" style="color:#393A34"><span class="token plain">with _issues as(</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> SELECT</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> DATE_ADD(date(i.resolution_date), INTERVAL -DAY(date(i.resolution_date))+1 DAY) as time,</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> AVG(i.lead_time_minutes/1440) as issue_lead_time</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> FROM issues i</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> join board_issues bi on i.id = bi.issue_id</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> join boards b on bi.board_id = b.id</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> WHERE</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> -- $board_id is a variable defined in Grafana's dashboard settings to filter out issues by boards</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> b.id in ($board_id)</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> and i.type = 'REQUIREMENT'</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> and i.status = "DONE"</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> and $__timeFilter(i.resolution_date)</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> -- the following condition will remove the month with incomplete data</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> and i.resolution_date >= DATE_ADD(DATE_ADD($__timeFrom(), INTERVAL -DAY($__timeFrom())+1 DAY), INTERVAL +1 MONTH)</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> group by 1</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">)</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain" style="display:inline-block"></span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">SELECT </span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> date_format(time,'%M %Y') as month,</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain"> issue_lead_time as "Mean Requirement Lead Time in Days"</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">FROM _issues</span><br></span><span class="token-line" style="color:#393A34"><span class="token plain">ORDER BY time</span><br></span></code></pre><div class="buttonGroup__atx"><button type="button" aria-label="复制代码到剪贴板" title="复制" class="clean-btn"><span class="copyButtonIcons_eSgA" aria-hidden="true"><svg class="copyButtonIcon_y97N" viewBox="0 0 24 24"><path d="M19,21H8V7H19M19,5H8A2,2 0 0,0 6,7V21A2,2 0 0,0 8,23H19A2,2 0 0,0 21,21V7A2,2 0 0,0 19,5M16,1H4A2,2 0 0,0 2,3V17H4V3H16V1Z"></path></svg><svg class="copyButtonSuccessIcon_LjdS" viewBox="0 0 24 24"><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z"></path></svg></span></button></div></div></div><h2 class="anchor anchorWithStickyNavbar_LWe7" id="how-to-improve">How to improve?<a class="hash-link" href="#how-to-improve" title="标题的直接链接"></a></h2><ol><li>Analyze the trend of requirement lead time to observe if it has improved over time.</li><li>Compare the requirement lead time of each project/team to identify key projects with abnormal lead time.</li><li>Drill down to analyze a requirement's staying time in different phases of SDLC. Analyze the bottleneck of delivery velocity and improve the workflow.</li></ol></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/apache/incubator-devlake-website/edit/main/versioned_docs/version-v0.18/Metrics/RequirementLeadTime.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>编辑此页</a></div><div class="col lastUpdated_vwxv"></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="文档分页导航"><a class="pagination-nav__link pagination-nav__link--prev" href="/zh/docs/v0.18/Metrics/RequirementCount"><div class="pagination-nav__sublabel">上一页</div><div class="pagination-nav__label">Requirement Count</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/zh/docs/v0.18/Metrics/RequirementDeliveryRate"><div class="pagination-nav__sublabel">下一页</div><div class="pagination-nav__label">Requirement Delivery Rate</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#what-is-this-metric" class="table-of-contents__link toc-highlight">What is this metric?</a></li><li><a href="#why-is-it-important" class="table-of-contents__link toc-highlight">Why is it important?</a></li><li><a href="#which-dashboards-does-it-exist-in" class="table-of-contents__link toc-highlight">Which dashboard(s) does it exist in</a></li><li><a href="#how-is-it-calculated" class="table-of-contents__link toc-highlight">How is it calculated?</a></li><li><a href="#how-to-improve" class="table-of-contents__link toc-highlight">How to improve?</a></li></ul></div></div></div></div></main></div></div><footer class="footer footer--dark"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">Docs</div><ul class="footer__items clean-list"><li class="footer__item"><a class="footer__link-item" href="/zh/docs/GettingStarted">Getting Started</a></li><li class="footer__item"><a class="footer__link-item" href="/zh/docs/DataModels/DevLakeDomainLayerSchema">Data Models</a></li><li class="footer__item"><a class="footer__link-item" href="/zh/docs/Metrics">Engineering Metrics</a></li></ul></div><div class="col footer__col"><div class="footer__title">Community</div><ul class="footer__items clean-list"><li class="footer__item"><a href="https://join.slack.com/t/devlake-io/shared_invite/zt-20envwfbk-JUTZ4z9jSeRnrvNhBFLg9w" target="_blank" rel="noopener noreferrer" class="footer__link-item">Slack</a></li><li class="footer__item"><a href="https://github.com/apache/incubator-devlake/issues" target="_blank" rel="noopener noreferrer" class="footer__link-item">GitHub Issue Tracker</a></li><li class="footer__item"><a href="https://github.com/apache/incubator-devlake-website/issues" target="_blank" rel="noopener noreferrer" class="footer__link-item">GitHub Issue Tracker For Docs</a></li></ul></div><div class="col footer__col"><div class="footer__title">More</div><ul class="footer__items clean-list"><li class="footer__item"><a href="https://github.com/apache/incubator-devlake" target="_blank" rel="noopener noreferrer" class="footer__link-item">GitHub</a></li><li class="footer__item"><a href="https://twitter.com/ApacheDevLake" target="_blank" rel="noopener noreferrer" class="footer__link-item">Twitter</a></li><li class="footer__item"><a class="footer__link-item" href="/zh/community/trademark">Trademark Guidelines</a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright"> |
