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.
What it measures
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.
Derived from
The outputs of NavBoost and Glue as input — Tangram combines these behavioral ratings into a SERP layout, making no judgments of its own.
Metric detail
GlueResponse = the behavioral input delivered by Glue, which Tangram assembles into the final SERP layout; Tangram itself is the composition layer, not a measured value. [B/C]
Why this attribution
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.
Strategic consequence
There is no direct lever at Tangram. Whoever optimizes NavBoost and Glue through genuine user satisfaction automatically benefits — Tangram then shows the content in the right place in the right order.