⚾ Cloud Services

FaaS

Function as a Service

• Functions are client managed and deployed on the cloud
• Functions are executed on demand in pay as you go fashion
• Referred to as Serverless Computing
• Network infrastructure is vendor managed

IaaS

Infrastructure as a Service

• Provides virtualised computing resources
• Storage, networking, and other infrastructure virtualisations
• Such services are generally pay as you go
• Applications, operating systems and data are client managed
• Servers, network infrastructure and storage are vendor managed

PaaS

Platform as a Service

• Adds a layer of IaaS and is often employed by software developers building, testing, deploying and managing applications
• Microsoft Azure and Google apps engine
• Applications, operating systems and data are client managed
• Servers, network infrastructure and storage are vendor managed

SaaS

Software as a Service

• Management and deployment of software (platform and infrastructure included)
• This service avoids the need for locally stored software because it uses such as Google Docs, and Microsoft Office 365
• Client only managed by user
• Everything else managed by vendor