
The Product Development Process: Your 10-Minute Guide

There are many different kinds of product and design processes that can be adopted as design systems, like double diamonds, spiral models, Lean, and many more.
Dan Mall • Design That Scales
The design phase is not just about putting your ideas into pictures; it also includes expansive thinking and validating your ideas with real people. This includes both the user experience (e.g., mock-ups and visual prototypes) and the technical solution (design docs and technical prototypes).
Gayle McDowell • Cracking the PM Career: The Skills, Frameworks, and Practices To Become a Great Product Manager (Cracking the Interview & Career)
Celebrate the process, not the tool. Sometimes you might shoot a quick video prototype. Sometimes a drawing will do the trick. Sometimes a rough storyboard will be enough to illustrate a multistep process.