FaaS
Function as a Service runs deployed functions in response to events or calls. A platform provides and manages the execution environment.
What does FaaS mean?
Function as a Service (FaaS) is an execution model in which deployed function code responds to events or calls. The platform provides the execution environment and manages its resources. The development team defines the function, its triggers and required access rather than running a continuously active server process for each function itself.
In a fictional project portal, the custom event AttachmentUploaded announces a stored attachment. In the planned flow, a function produces a preview image from it. The original file, preview and their association with the project are retained in designated storage services; they do not depend solely on the function call's working memory. The event name and flow are custom examples, not an executed platform integration.
FaaS is one form of serverless execution. Servers and platform operation still exist. The platform can also be self-operated; its operation then remains with the organisation. The term alone implies no particular prices, execution limits or guaranteed response times.
Sources
Related terms
- Cloud computingCloud computing provides IT resources over a network on demand. Service and deployment models determine which tasks remain with the company.
- IaaSInfrastructure as a Service supplies computing, storage and networks. The operating system and the company’s own applications remain the team’s tasks.
- PaaSPlatform as a Service provides a platform for custom applications. The team deploys its code; the provider operates the underlying environment.
- Return-PathReturn-Path records the SMTP reverse path in a header. It explains the technical route for error reports, not a person’s identity.
- Envelope-FromEnvelope-From identifies the SMTP sender for transport and error feedback. It must be distinguished from the visible sender address.
- DMARC aggregate reportA DMARC aggregate report summarises a reporting mail system’s domain checks over a period. It helps examine sending sources and misconfigurations.
Articles on this topic
Cloud & Operations with ASES
Hosting, deployment, maintenance and support