CMMi: The Five-Star Rating System for How Well Tech Companies Work

Mon, 17 Aug 2026 07:18:22 +0900

🤔 What Is It?

CMMi

CMMi is a scoring system that measures how organized and consistent a software company’s teamwork is — kind of like a report card that grades whether a team always follows its game plan or just wings it every time.

🧩 Like leveling up a soccer team from playground chaos to championship pros

Imagine a soccer team that starts out with zero plan — players just show up and do whatever they feel like, and every match is total chaos. Slowly, the coach starts writing a game plan for each match. Then the whole club agrees on one official training rulebook everyone must follow, every game, every practice. Next, the team starts recording every single stat — pass accuracy, shots on goal, sprint speed — so they can see exactly what’s working with real numbers. Finally, the very best teams use all that data to constantly experiment and refine their tactics each season, always chasing perfection. CMMi works exactly like that rating system for soccer clubs — except it grades software companies instead of sports squads.

How engineers see inside broken software — without stopping it

Sat, 25 Jul 2026 07:01:50 +0900

🤔 What Is It?

observability

Observability is the ability to understand what’s going on inside a running app just by reading the signals it gives off — like watching a game’s health bar, mini-map, and chat log all at once so you can spot problems fast.

🧩 Like your game’s health bar, mini-map, and chat log

Imagine you’re playing a big online game. While you play, three things are always visible: a health bar showing a number that rises and falls, a mini-map tracking every place your character has been, and a chat log recording every event — ‘You entered the cave at 4:02 PM,’ ‘Enemy spawned.’ Now picture the game’s developers looking at the same kind of display, but for their computers instead of your character. They can see how hard each server is working, a record of every event that happened, and the exact path your click took through dozens of machines. If the game suddenly lags or crashes, the developers don’t have to guess — they read those signals and follow the clues, the same way you’d replay a tough boss fight frame by frame to figure out exactly where things went sideways.

Software-Engineering on Explain It

CMMi: The Five-Star Rating System for How Well Tech Companies Work

🤔 What Is It?

🧩 Like leveling up a soccer team from playground chaos to championship pros

How engineers see inside broken software — without stopping it

🤔 What Is It?

🧩 Like your game’s health bar, mini-map, and chat log