You have probably heard of many other X-as-a-Service offerings such as Storage-as-a-Service, Desktop-as-a-Service, Network-as-a-Service, Backend-as-a-Service, Function-as-a-Service. These other models are merely subsets or aggregations of SaaS, IaaS, or PaaS. Categorizing them into the three standard models simplifies any cloud conversation you may have.
Other cloud service models
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