# Platform Engineering Fundamentals
All Platform Engineering Fundamentals notes →1 — Conway's Law
How Conway's Law ties software architecture to organizational communication structure, and what that implies for platform team boundaries.
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2 — Team Topologies
Introduces the four fundamental team types from Team Topologies — stream-aligned, platform, enabling, and complicated-subsystem — and their interaction modes.
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3 — Cognitive Load
Defines the types of cognitive load a platform absorbs on behalf of stream-aligned teams, and how a platform's scope should be sized against it.
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4 — Platform Teams
Covers a platform team's mission, responsibilities, composition, and the criteria used to judge whether it's succeeding.
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