Function as a Service (FaaS) is a serverless computing model where developers deploy individual functions that execute in response to events. The cloud provider manages all infrastructure aspects. Key characteristics:
Event-triggered: Functions execute only when triggered by events
Stateless: Each execution is independent with no persistent state
Auto-scaling: Automatically scales from zero to thousands of concurrent executions
Short-lived: Functions have execution time limits (e.g., 15 minutes for AWS Lambda)
Pay-per-invocation: Billing based on actual executions and compute time Examples include AWS Lambda, Google Cloud Functions, and Azure Functions. FaaS is ideal for microservices, API backends, data processing, and event-driven workflows.
Rewriting in plainer words…
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