The Architecture Brief
Enterprise AI insights for leaders who build
Deep-dive essays on enterprise AI architecture, cloud strategy, and digital transformation. Written by Michael Whittenburg, Enterprise Architect at IBM.
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The Market Is Wrong About IBM, COBOL, and Claude Code
Anthropic's claim that Claude Code can modernize COBOL wiped $30B from IBM's market cap. The market panic reveals a fundamental misunderstanding of why enterprises actually run mainframes.
The RAG Architecture Patterns Every Enterprise Architect Needs to Know
Retrieval-Augmented Generation has become the default pattern for grounding LLMs in enterprise knowledge. But RAG is not a single pattern — it's a family of approaches with very different tradeoffs. Here's what you need to know.
Why 87% of Enterprise AI Projects Never Reach Production
The gap between AI proof-of-concept and production deployment is wider than most organizations realize. After working on dozens of enterprise AI initiatives, I've identified the patterns that separate the 13% that ship from the rest.
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