1) if the name is "Grid" or "OGSA (Open Grid Service Architecture)"... then it is not a cloud.
2) if you need to provide a dozens of pages of demand statement to the vendor, it is not a cloud.
3) If you cannot use your credit card to buy... It is not cloud.
4) if they want to sell you hardware devices, they are not cloud devices.
5) if the API is not provided, it is not cloud.
6) if you need to rebuild your system... it is not a cloud.
7) if you cannot deploy a (Provision) server within 10 minutes... then it is not cloud.
8) If you cannot cancel (deprovision) The server within 10 minutes... then it is not cloud.
9) If you know the specific location of the machine you are using... It is not cloud.
10) If you need a consultant to help you... it is not cloud.
11) If you need to prepare a list of required machines in advance, it is not a cloud.
12) if it runs only one operating system, it is not a cloud.
13) If you don't need to connect it to your own machine... it's not a cloud.
14) if you need to install software to use it... then it is not a cloud.
15) If you own all of these hardware, then it is not cloud.