This document discusses microservices and keys to microservices success. It defines microservices as independently deployable services that work together. Microservices allow for agility, reuse, and productivity. The document outlines how enterprises are adopting microservices with containers, registries, auto-scaling and blue/green deployments. It emphasizes that REST APIs are a key ingredient for microservices success by enabling consumption and shielding consumers from complexity. The document also notes that microservices will fail without API management for issues like API sprawl, security threats and lack of visibility. It positions Apigee as providing the API layer and management capabilities needed for successful microservices.