Continuing to roll out new compute services at an impressive clip, Amazon Web Services has introduced a way for programmers to trigger operations in their AWS deployments without running a full virtual machine, potentially reducing maintenance work and cost.

The service, called AWS Lambda, will provide a virtual space for programmers to run scripts or business logic programs that can be activated when some event occurs, such as a user uploading a photo. The script can then trigger other services in the AWS arsenal, such as storing the photo on Amazon S3 (Simple Storage Service), or execute other operations, such as generating a series of thumbnails based on the photo. Lambda could be used to coordinate operations of complex event-driven back-end services, according to the company.

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