NLWeb, Schema.org, JSON-LD and MCP are the building blocks, and VISEON is built on them, which is why the result is portable and yours. What VISEON for Web adds is the work around them: auditing and reconciling the schema you already have, one canonical entity for each organisation, product, service and person, answers that cite their source and say when the graph does not know, discovery listings (ARD and the MCP Registry), and governance as your site and offer change. Standing up an endpoint is the easy part; keeping the catalogue correct is the ongoing job.
