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Service Categories
Category Service Offering Example Billing Metrics
SaaS • Games • Per application user
• Music • Per transaction
• Web-conferencing • Number of calls
• Online or downloadable applications • Number of minutes
PaaS • Google Apps • Per hour
• Amazon • Per GB of transfer, in and out
• APIs for CRM • Per message
• Retail
• Tools to develop new applications
IaaS • Infrastructure for applications • Per named host
• Storage • Per GB
• Collocation • Per server
• General purpose computing • Per CPU
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