SBI個案分析範例

theta 2022 年 6 月 10 日

SBI個案分析範例

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嘗試使用 SBI 來說明案例，詳細說明可以先到這邊進行了解。

軟體程式開發流程 – 問題解決

階段	子分類	分類	說明
Situation	Situation	定義問題	我的團隊幾個月前遇到了一個大的服務中斷問題
Situation	Situation	起初的狀況	我知道發生問題，因為我收到了系統警報，那個時候我是維運負責人。
Situation	Target	當下第一個行動	我響應了警報，開始查看系統儀表板。
Situation	Target	描述問題細節	1. 發現我們的訂單數量大幅下降。 2. 問題是我沒有足夠的時間來找出根本原因層面出了什麼問題。
Behavior	Action	決定如何行動	我知道我自己無法解決這個問題，因為我們的系統很大。所以我與團隊中的其他幾位工程師召開了電話會議，四個小時後我們仍然無法鎖定問題，所以我們要求回朔系統。
Behavior	Action	為什麼決定這個方式來進行行動	這樣的調查存在收益遞減點，因為這是亞馬遜上任何客戶都可以使用的功能，永遠不會希望像這樣對客戶產生持續的影響，而且我們已經接到了幾個客戶服務電話。因此，一旦您有幾個確認的客戶服務案例，最好進行回滾，然後留出時間進行根本原因分析。
Impact	Result	說明行動的結果	這是幾天的調查，不僅是對實際客戶產生影響，也造成實質收益的損失。因次最終部署一個修補程序，然後在生產中進行部署和測試，最後再次進行部署。
Impact	Result	如何進行長期活動	我們擴展與更新測試套件，避免問題再次發生。

階段	子分類	分類	說明
Situation	Situation	定義問題	we found a performance of service is not very well.
Situation	Situation	起初的狀況	we get a call from a customer, and they say our sentiment analysis system has some problem, the result is not correct.
Situation	Target	當下第一個行動	I knew the API, so I check the API endpoint in the first timing
Situation	Target	描述問題細節	1. I found the result very bad. any sentences are classified as negative. 2. we don’t have any warning or error message from the system.
Behavior	Action	決定如何行動	I test the API for a few minutes. And I guess the problem is the model using the wrong version, so I want to check the change history and find out the reason.
Behavior	Action	為什麼決定這個方式來進行行動	1. because I knew is stable and didn’t have any updates this week. 2. I knew the API structure is very simple so I think it was just a mistake in the config, I can handle the problem.
Impact	Result	說明行動的結果	After an hour, I found the model has be changed 10 hours ago. so I fix the config and restart the service. the reason is, that week, we have 3 co-workers and 15 interns to join us. so we introduce some stable service. and the API is one of this. we hope new co-workers take interns to read codes. we think it good idea, the co-worker can read line and line, and the intern can understand how to read. and a problem has happened, a new colleague thinks it is a test server. so he change some config for the introduction. the good news, only a few end-users get the wrong result. we email them and apologize for this.
Impact	Result	如何進行長期活動	so we set review rules. before anyone wants to push now commit to production, you need to get agreement from other partners.

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