WSO2 Stratos Architecture is quite interesting in terms of its multitenancy. When the WSO2 Carbon Platform meets the cloud computing through the multitenancy, there comes WSO2 Stratos. The above document just gives a very basic view. If you are familiar with WSO2 Carbon, you can get the exact user experience using WSO2 Stratos without even having it installed or configured in your machine. Feel it yourself now, by signing up an account free.