Or from the 1990s, "User manual as spec" - https://archive.org/details/rapiddevelopment00mcco/page/324/mode/2up?q=%22user+manual+as+spec%22 https://archive.org/

Or from the 1990s, "User manual as spec" - https://archive.org/details/rapiddevelopment00mcco/page/324/mode/2up?q=%22user+manual+as+spec%22 https://archive.org/details/rapiddevelopment00mcco/page/324/... For example, the Excel Basic spec: https://www.joelonsoftware.com/2006/06/16/my-first-billg-review/ https://www.joelonsoftware.com/2006/06/16/my-first-billg-rev... > Then I sat down to write the Excel Basic spec, a huge document that grew to hundreds of pages. I think it was 500 pages by the time it was done. (“Waterfall,” you snicker; yeah yeah shut up.) On the page above "user manual as spec" is "point of departure spec", which would be more like the iterative prototyping style.