
Data Engineering Weekly
Knowledge, Metrics, and AI: Rethinking the Semantic Layer with David Jayatillake
<p>Semantic layers have been with us for decades—sometimes buried inside BI tools, living in analysts’ heads. But as data complexity grows and AI pushes its way into the stack, the conversation is shifting. In a recent conversation with David Jayatillake, a long-time data leader with experience at Cube, Delphi Labs, and multiple startups, we explored how semantic layers move from BI lock-in to invisible, AI-driven infrastructure—and why that matters for the future of metrics and knowledge management.</p><p>What Exactly Is a Semantic Layer?</p><p>Every company already has a semantic layer. Sometimes it’s software...






