Is Relative – Even When It Shouldn’t Be  Examples: House Shopping, Vacations,  Observations: o “humans rarely choose things in absolute terms. We don’t have an internal value meter that tells us Rather, we focus on the relative advantage of one thing over another, and estimate value accordingly” o “we not only tend to compare things with one another but also tend to focus on comparing things that Source Software  Observations: o “we live simultaneously in two different worlds – one where social norms prevail, and the other where market norms make the rules.” o “once market norms enter our considerations

make detailed plans beyond a program’s ability to control or accurately predict future circumstances o Agile methodology does not force programs to establish their full scope, requirements, and design at define the desired system functions and provide the foundation for Agile estimation and planning. o They describe what the users want to accomplish with the resulting system. User stories help ensure requirements than large requirements documents.  DON’T treat planning as a one-time up front activity o In lieu of CDDs and CPDs, programs can develop Requirements Definition Packages (RDPs) to capture a

specifications, and standards. Systems Engineer Manages releases, overseeing system implementations, O&M, and transition, and integrates all the engineering sub disciplines and specialty groups into a Systems Engineer The systems engineer manages the releases; oversees systems implementations, O&M, and transition; and integrates all the engineering disciplines and specialty groups into a team programs only) Recommend combining with Post-System Functional Review Report. PESHE and NEPA/E.O 12114 Compliance Schedule MAIS & ACAT III (Not required for software programs with no hardware

相应的，多云架构也给技术团队带来了⼀定的复杂度和技术挑战， 最显著的就是如何⾼效的构建跨云的可观测性体系，提升故障发 现、问题排查、性能分析等⽅⾯的能⼒。 挑战： p 跨多云的监控数据权限管理难、安全隐患⼤ p 监控⼯具多且分散，维护和使⽤成本⾼ p 跨多云的故障发现和定位体系缺失，稳定性保 障难度⾼ 北京快猫星云科技有限公司 北京快猫星云科技有限公司 北京快猫星云科技有限公司 北京快猫星云科技有限公司 故障发现慢，主要依赖⽤户保障 2. 缺乏基于业务视⻆的全链路监控，故障定位耗时较⻓ 3. 缺乏对重要故障场景的应急预案的梳理和演练 效果： 1. 通过落地Flashcat平台，公司A级产品线北极星指标监控实现了全覆盖，P3级 及以上故障北极星监控发现率为100%，MTTI控制在5分钟以内。真正做到了先 于⽤户发现问题，让故障处理变被动为主动。 。 2. 故障定位能⼒建设也已取得重要进展，我们和业务⼀起梳理了公司A级产品线 设备由于城市、开业时间等因素，其型号也不相同，服务 器、应⽤程序分散式部署，给应⽤管理、IT运维、以及先于 ⻔店发现问题，带来了极⼤的挑战。 痛点和挑战 p 如何⾼效的集中监控所有的⻔店？ p 如何度量、发现、治理有 IT 隐患的⻔ 店？ p 如何让总部 IT 先于⻔店发现故障？ 解决⽅案： Flashcat 连锁⻔店集中监控⽅案，基于All-in-One 的开源采集器Categraf，加上业界领先的开源监控

e/proceedings [2] YouTube Playlist: https://www.youtube.com/playlist?list=PL055Epbe6d5Y86GSg3nhUH3o_v62FGpCI

consider each feature as a hypothesis and use real users to prove/disprove the hypothesis 1. Barry O’Reilly, Lean Enterprise describes as: We Believe that Will Result in

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