Benefits of multi-tenancy

The benefits of the multi-tenancy model have been extensively discussed elsewhere, so I am simply going to summarize what I've learned.

Here's a summary of multi-tenancy selling points (for customers):

• pain-free upgrades
  
• take advantage of economies of scale
  
• relatively straightforward integration with other software
  

Here's a summary of benefits of multi-tenancy to the firm:

• scales easily and cheaply when provisioning new customers
  
• same infrastructure used over all tenants = higher cost-effectiveness
  
• single code base for all users - less code to maintain, implying lower cost
  
• reduced development requirements dues to ability to leverage tools and platforms, implying faster time to market