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Web

application(Flutter)

[Scenario test tips] How to break it down into MECE and subdivide it moderately.

Notes and tips on writing scenario tests are described. What is required in writing scenario tests is the ability to strike a balance between breaking down the conditions into MECE but not over-dividing them. Scenario testing does not require direct description of the programming code.In other words, it can be described by non-engineers. It may be efficient for the PdM or UIUX person who created the mock-up, for example, to write the scenario test as it is.
Development/Design

[Web Development] Server-side rendering (SSR) → Emergence of Ajax and spread of SPA → Virtual DOM (React) → PWA

Server-side rendering (SSR): before 2000, all content was generated on the server and sent to the client; advent of Ajax and spread of SPA: from the early 2000s to around 2010, technology to update only part of the page through asynchronous communication using Ajax became popular and and SPA (Single Page Application) appeared.
Development/Design

[X(Twitter) bot] How to create an X Bot that automatically posts from a spreadsheet in GAS: (1) Preparation

Register a Twitter developer account, get Client ID and Secret, set User authentication, create twitter authentication in GAS, add OAuth2 library, and create code for Twitter API authentication process.