Tangram

Tangram evaluates nothing itself. It is the assembly layer that takes the ratings from NavBoost and Glue and builds the final search results page from them. Think of it as a conductor: it decides which elements appear where on the results page, but it doesn't judge whether the content is good.

Tangram takes the outputs of NavBoost and Glue as input. It combines these behavioral ratings into a SERP layout and makes no judgments of its own.

GlueResponse is the behavioral input that Glue delivers. Tangram assembles it into the final layout of the search results page (SERP). Tangram itself is the composition layer, not a measured value. [B/C]

Tangram has no direct E-E-A-T bearing, because it doesn't judge. Authority and Trust appear only indirectly, because Tangram arranges the results of systems that do measure those dimensions.

Tangram offers no direct lever. Whoever optimizes NavBoost and Glue through genuine user satisfaction benefits automatically, because Tangram then shows the content in the right place in the right order.