Writing archive

Writing in 2026.

Writing organized by creation date.

Business Model Canvas: Nine Boxes

The Business Model Canvas from an enterprise investment class, noted for myself: what each of the nine boxes is, the question each box must answer, and why the line 'all of them must be satisfied for a project to succeed' depends on the company's stage.

  • #Strategy
  • #Product Thinking
  • #Decision Making

Thinking Training (4): Structured Thinking in Practice

A hands-on companion to the Five Lenses method: four scenarios — interview, promotion, reporting, and cross-team collaboration — show how to apply the structured tools and the Five Lenses to real problems.

Part of the column “Thinking Practice” · Chapter 4

  • #Thinking
  • #Problem Framing
  • #Decision Making

Management Retrospective: Eight Judgments from Execution to System

Condensing the judgments that have recurred over the past few years in management, collaboration, and decision-making into a single master summary told just once: judgment, boundaries, alignment, context, closed loop, resources, team, and retrospective — each pointing to one expanded article.

  • #Management
  • #Leadership
  • #Decision Making

Three Lenses on One Project: Canvas, Pitch, Due Diligence

A note on a distinction: the business model canvas is 'made for yourself,' the startup pitch is 'told to others,' and investor due diligence is 'others scrutinizing you'; the three differ completely in purpose, focus, and framing — don't mix them up.

  • #Strategy
  • #Product Thinking
  • #Decision Making

A Fresh Start

This site is being rebuilt from an old static blog into a personal publication about technology, work, and life — and it also records the trade-offs made along the way.

  • #Site Notes
  • #Field Notes

Departure Under Sunlit Flames

A farewell, reflection, and word of thanks at the end of an eight-and-a-half-year career journey.

  • #Career Growth
  • #Reflection
  • #Leadership