Write a one-page brief
State the problem, who has it, what they do today and what success would look like in three months. Leave features until last; they usually follow from the rest.
filed under planning
Small notes
Advice, freely given.
Short, practical notes for anyone planning a mobile or web product. Choose a topic in the sentence below.
I would like notes on
Decide what version one leaves out
List every feature you want, then mark the ones a first user could live without for a month. Those are version two.
filed under planning
Test a prototype with five people
Five short sessions usually reveal the largest usability problems. Give a task, stay quiet, and note where people hesitate.
filed under design
Write error messages that help
Say what happened, why, and what the person can do next. Avoid blaming language and codes on their own.
filed under design
Prepare store privacy declarations early
Both Apple and Google ask what data your app collects and why. Collecting the answers late is a common cause of delay.
filed under release
Keep a rollback plan
Before releasing, write down how to return to the previous version and who decides to do so.
filed under release
Own your domain and accounts
Register domains, hosting and developer accounts in your organisation's name and keep recovery details current.
filed under it
Set up SPF and DKIM for email
These DNS records help receiving servers trust mail sent from your domain. Your hosting provider documents the exact values.
filed under it
Worth bookmarking
Authoritative public guidance: the Web Content Accessibility Guidelines (WCAG) published by the W3C, the Apple App Store Review Guidelines, the Google Play Developer Policy Centre, and the UK Information Commissioner's Office guidance on cookies and similar technologies.