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Therefore, cloud computing:

• Provides a shared pool of configurable computing resources
• Provides on-demand network access
• Is provisioned by the Service Provider

APPLICATIONS
SERVICES

COMPUTER
NETWORK

STORAGE
DATABASE
SERVICES

Fig. 8.35: Components of Cloud Computing

It entrusts services with a user’s data, software and computation over a network. It has considerable
overlap with Software as a Service (SaaS).

Service Value Nets

Business Business Business Business
Service Service Service Service Business Community Community Community
Service Service Service Service
IT IT IT Community
Service Service Service Service Business IT IT
Service Service Service
Platform as a Service
Business Business IT IT IT IT Community Community
Service Service Service Service Service Service Service Service

Infrastructure as a Service Server
Computer Science with Python–XII 8.64  Software as a Service (SaaS) Fig. 8.36: Cloud Architecture

• From the end-user’s point of view
• Apps are located in the cloud
• Software experiences are delivered through the internet