Composition over Inheritance - Example in game development

What are the differences between composition and inheritance

Requirement analysis - 要望 (demand) vs 要求 (request) vs 要件 (requirement)

The difference between 要望 vs 要求 vs 要件

Documentation in system development - Business related document

Business related documents in software development

What are the documents used for system development?

The importance of documentation and common document you may come across

What is a Request for Proposal (RFP) in Software development?

If you’re about to outsourcing a project, you should consider creating an RFP

Blog update

Restructured with Hugo and moved to Vercel

Simple Form Validation in Mithril Js

How to validate form input in MithrilJS

Trying out MithrilJS

First day into Mithril

A great Japanese ebook about System rebuild

A great IT book by IPA

Moved my site to Heroku