{"id":5255,"date":"2026-08-30T12:20:35","date_gmt":"2026-08-30T03:20:35","guid":{"rendered":"https:\/\/donguri3.net\/server-tech\/pdca-timer-plugin-paper-2\/"},"modified":"2026-08-30T12:20:36","modified_gmt":"2026-08-30T03:20:36","slug":"pdca-timer-plugin-paper","status":"publish","type":"post","link":"https:\/\/donguri3.net\/en\/server-tech\/minecraft\/pdca-timer-plugin-paper\/","title":{"rendered":"Learning PDCA through Minecraft: The “PDCATimer” Plugin Driven by Lecterns and Books"},"content":{"rendered":"

In the world of Minecraft, players set their own goals and take action\u2014whether it’s building a house or crafting tools. By mapping this process to the “Plan \u2192 Do \u2192 Check \u2192 Act” (PDCA) cycle, it naturally becomes an exercise in “thinking and acting” while having fun.
\nPrompted by this idea, I’ve been working on the initiative of “running the PDCA cycle in Minecraft,” previously developing tools like a whiteboard-style plugin.
\nNow, to further support that workflow, I have released “PDCATimer,” a Paper plugin specialized in time management.<\/p>\n

A Book Placed on a Lectern Becomes a Timer<\/h2>\n

The defining feature of this plugin is its use of vanilla Minecraft elements: “books and lecterns.”
\nSimply write the timer configuration into a book and place it on a lectern to automatically start the timer.
\nThere’s no need to type complex commands; it’s completed entirely using in-game items.<\/p>\n

For example, you can start a PDCA session just by writing the following:<\/p>\n

[PDCA]\n[1]30m: \u305c\u3093\u306f\u3093\n[2]2m: \u305c\u3093\u306f\u3093\u306e\u3075\u308a\u304b\u3048\u308a\n[3]30m: \u3053\u3046\u306f\u3093\n[4]5m: \u304d\u3087\u3046\u306e\u307e\u3068\u3081\u3068\u3058\u304b\u3044\u306e\u3082\u304f\u3072\u3087\u3046\u305b\u3063\u3066\u3044<\/pre>\n
Once you place the book, a gauge appears at the top of your screen, allowing you to watch the time tick down.
\nIt is designed so that the color changes when time is running low, helping you stay focused on your work without losing concentration.<\/p>\n
\"PDCATimer\"<\/a><\/p>\n
Why Incorporate Time Management?<\/h2>\n
In the PDCA cycle, rather than dragging out planning and reflection indefinitely, it is crucial to segment them into fixed periods of time.
\nEspecially when learning alongside children, visualizing concepts like “5 minutes left” inside the game
\nnaturally builds a sense of time and concentration.<\/p>\n
Additionally, using a lectern makes the “trigger to start acting” explicit.
\nIn the real world, it’s akin to punching a time clock.
\nOnce you place it down, all you have to do is focus on your actions while keeping an eye on the time.<\/p>\n
Background and Objectives of Development<\/h2>\n
The previously created “Whiteboard<\/a>” plugin aimed to visualize PDCA planning and reflection.
\nHowever, it lacked a mechanism to support the “actual time spent taking action.”
\nPDCATimer serves as a complement to that, focusing specifically on the “Do” phase of PDCA.<\/p>\n
The goal is to realize a time-boxed PDCA cycle inside Minecraft where:<\/p>\n