Analytics stacks rarely fail because one tool is bad. They fail when a team spends months building a part that could be bought, then buys a tool and expects it to supply the one part that only the team can define. A Wardley map is a way to see that mismatch before money is spent. This article walks through one hypothetical analytics decision, maps it, and shows what the map can and cannot tell you.
The method comes from Simon Wardley's book Wardley Maps, which he published openly under a CC BY-SA 4.0 licence. The descriptions below are based on a collated copy of his Medium chapters. The application to analytics is this article's own illustration, not an example from the book.
What a Wardley map adds to a build-or-buy discussion
A usual build-or-buy list compares tools feature by feature. A Wardley map asks two different questions about every part of the system. How visible is this part to the user whose need it serves? And how evolved is it: new and uncertain, or well understood and widely available?
In the chapter "Finding a path", Wardley builds a map in three steps. First, define a scope and the user needs within it. The user is the anchor of the map. Second, list the components needed to meet those needs, then the components those depend on, until you leave the scope. That chain runs vertically. Components higher on the map are more visible to the user. Third, place each component on a horizontal evolution axis with four stages: genesis, custom built, product (including rental) and commodity (including utility).
The point is not the drawing. The point is that a single system holds parts at different stages, and each stage calls for different treatment.
Start with one user need and its value chain
Take a hypothetical online shop. The marketing lead decides every Monday how to split next week's paid budget between search, social and email. Today that call rests on platform-reported revenue, which ignores refunds and product margin. The user need is narrow: "Show me which channel brought profitable orders last week, so I can move budget."
