trigger that invoke the function. Trigger can be created through API call, in-app activities thatinvoke the function then load/execute it. FaaS platform does provide pre-build functions (fileupload, image conversions, file compression etc.) too that can be consumed in your application
CASE STUDY 4.1 8development. An example of FaaS is, uploading pictures to cloud storage from your mobiledevice (Amazon Lambda).FaaS is a pay-per-use service and pay only for the compute time you consume - there is no charge when your code is not running. Following images shows the service charges of FaaS service by the providers.Amazon Lambda:(Amazon Lambda)Azure Functions:(Microsoft Azure)
CASE STUDY 4.1 9ConclusionCloud computing business is growing fast in the IT due to benefits it provide theorganizations in terms of infrastructure cost and savings in the development lifecycle costs. Fewof the major benefits of cloud computing are, organizations no need to buy servers, dispose ofhardware or software when it is out of date, elasticity nature provide better scalability, fasterproject execution without lengthy procurement and big upfront costs and in cloud customer needto pay for the services consumed. Though there are few challenges in cloud and organizationsneed to assess the risks and mitigate them appropriately before moving to the cloud.
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