YAGNI

You Ain't Gonna Need It

Sources

• The Cost YAGNI Was Never About — Kent Beck

Connections to develop

• Every line of code is a liability
• Premature scaling can stunt system iteration
• The best software has the fewest moving parts
• Only work on one thing at a time

Questions

• Is speculative code a form of inventory, with carrying costs that begin immediately even if its value never arrives?
• Is limiting concurrent projects a portfolio-level application of YAGNI?
• When does defensive handling protect a real contract, and when does it implement imagined requirements?
• How do YAGNI, pull systems and WIP limits express the same underlying preference for responding to demonstrated demand rather than anticipated demand?