Key Points Comprehensive Recall of the Integrated Application of Theme Content

Key Points Recap: Reviewing the Theme of “Comprehensive Application” #

Hello, I am Zheng Ye.

It’s time again for us to recap the key points. Due to the limited space, the module of “Comprehensive Application” is the most concise.

In this module, we integrate all the knowledge we have learned earlier and apply it to practical work scenarios. This allows you to understand that these contents are not isolated practices. In actual work, only by combining them can we achieve maximum effectiveness.

Key Review #

In this module, we learned some new knowledge.

  • “Learning Zone” Learning Model

    • Comfort Zone, comfortable but lacks growth.
    • Panic Zone, beyond the abilities.
    • Learning Zone, challenging yet achievable.
    • Practicing in the Learning Zone leads to sufficient growth.

  • T-shaped Talent, Specialized and Versatile

    • Breadth of knowledge.
    • Depth of specialized skills.
    • The meaning lies in being “specialized” and “versatile”.

In this module, we also gained some important insights to improve our work.

  • Starting a New Job, Begin with Comprehensive Understanding

    • Business: what to do.
    • Technology: how to do it.
    • Teamwork: how to collaborate with others.
    • Understand the job from a macro to micro perspective, from the outside in.

  • Confronting Legacy Systems, Steadily Move Forward in Small Steps

    • Fundamental Concepts
      • Bad code is only a symptom, we need to understand the root cause.
      • If possible, refactor first; large-scale transformation should be a last resort.
      • Take small steps forward.
    • Practical Steps
      • Build a testing safety net.
      • Decompose large systems into smaller modules and gradually replace them.
      • Coexist old and new modules, with distribution modules as schedulers.
      • Establish a solid domain model.
      • Find the latest understanding of system construction in the industry.

  • Career Development for Programmers

    • The anxiety of programmers stems from the uncertainty of the future, which is a result of a specific era and industry.
      • The rapidly developing Chinese economy.
      • Programming is an emerging profession in China.
    • Become an industry expert and set high goals.
    • Learn from masters and broaden our horizons.
    • Find good problems to work on with high-level professionals.

Practical Guide #

Additional Gains #

At the end of this module, I have also provided some answers to your questions regarding the learning process, helping you organize your thoughts and better understand the content you have learned:

  • Promote new concepts and find people willing to make changes and take concrete actions.
  • Lead by example.
  • External systems should be isolated using interfaces. This practice reflects the Interface Segregation Principle (ISP) and also embodies the concept of an anti-corruption layer.
  • When testing external systems, simulate whenever possible and run tests locally whenever applicable.

Selected Comments #

Regarding the question of how to quickly get into working mode after joining a new company, Xixi and