One deployable, modules inside it, independent services, or functions: how should the shop be cut?

Inside the full comparison

• 6 questions to ask first, each pointing at the styles it favours
• 5 problems from the shop, drawn with no style and then once for each of the 4 styles: 25 drawings
• One drawing of how each of the 4 styles is built, with what a read and a write do inside it and what limits it
• 11 more things compared, one short answer per style, with 64 checked claims and 64 warnings
• 2 scenarios, Small team and Sale and audit, each showing how a changed requirement affects the choice or design
• The interview answer in four moves, filled in for this family
• 51 source pages checked in 2026-09, linked next to every claim