The pure public cloud is no doubt that we build the web services on public and the hybrid combine the private part. According to the information on wiki, the public cloud aka external cloud is related to the service is provided by third party. There is a picture on wiki can describe exactly what we talk about.
Basically, there are four deployment models on wiki. The private cloud can't satisfy the requirements of the surveillance system. We do not talk about the community cloud also because it's not real on surveillance system.
There is a famous network camera company named Dropcam that deployment as pure public cloud system. When we install the the devices, we have to create an account and register them. As I know, Dropcam use the Amazon Web Service as the infrastructure. I just plot some simple block diagrams to describe it.
The way of Dropcam is the left bottom and all services are provided by Dropcam that host on AWS. The role of Dropcam become not only the device maker anymore but also service provider. The total system is the most easiest and simplest by this way.
The other three block diagrams are more and more complicated. Some surveillance company still want to expand their system base on the traditional type and the whole system may become the most complicated upper one. They will get into trouble soon.
There is still a question that not all people like to feed their private contents to service provider. That's why the original surveillance still there and get most market share but I think this situation will become different in recent years.
After studying, I'd like to shorten the deployment into two kinds. One is the Dropcam's way and the reason has already described above. Another one is because some weak points that the pure public can't overcome at this moment.
So which one is better, left or right? Let's wait and see what will happen next.
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