Hard Skills: Understanding Business Logic – A Breadth and Depth Framework

In a follow‑up to the previous post "Software Testing Experience Map," the author introduces the second tier of the map – hard skills – focusing on business logic as a core competency for testers.

Business logic is emphasized with the reminder that 我们所有的工作都是为业务目标服务的 , meaning all work serves business goals, so understanding the underlying logic is essential.

The breadth of business‑logic knowledge is measured using four levels: 体、面、线、点 . 体 refers to company‑wide understanding, illustrated by questions about overall company matters; 面 concerns department‑level knowledge, shown by queries specific to a business unit; 线 addresses functional expertise, exemplified by testing‑related questions; and 点 focuses on personal responsibility, where one must know the details of the projects they own. Example questions for each level are presented in blockquotes.

你们老板身价多少？ 你们那个路由器有内部价不？ 你们公司招保洁不？ 龙妈是囧恩·雪诺的姑姑不？

The depth of business‑logic knowledge is evaluated across three layers: 表示层、逻辑层和数据层 . The author refers to a previous article on layered testing design for a detailed explanation of these layers.

By applying the breadth (体、面、线、点) and depth (表示层、逻辑层、数据层) frameworks, professionals can assess how comprehensively they understand business logic, identify gaps, and focus on improving both the scope and the thoroughness of their knowledge.

The article concludes by inviting readers to share their own standards for measuring business‑logic competence and to spread the content.