The difficult question is rarely “does the platform work?” It usually does. The harder question is who gets to decide what it does.
Do we standardise the process globally or let the market keep its version? Who approves an exception? When the global roadmap and the regional priorities disagree, whose call is it?
An architecture diagram will not answer those questions. When they remain open, the programme rarely fails loudly. It slows. Global defines the standard, regional reinterprets it, the market protects how it already works and a vendor fills the gap. Everyone is involved. Nobody owns the decision.
I learned this the expensive way. I built a clean global standard and then granted one market a sensible exception. Within a quarter, several more markets had pointed to it and asked for their own. The standard was already becoming fiction because I had never defined who had the authority to say no.
That is why I care about decision architecture: what is non-negotiable, what a region can bend, what a market owns and how disagreement gets resolved before it becomes another steering committee.
Done well, this gives markets more freedom, not less. When people know where they can move without asking, they stop asking.
Technology can scale a process. It cannot tell you who is accountable for it.