 Over the top is more like a buzzword but it turns out in reality over the top services actually have been existing for a long time. For instance, WhatsApp is an over-the-top service. What makes it over the top is indeed interesting. So we'd look at the relationship or the marriage between over-the-top services and the cloud infrastructure that has to provide certain services in order for OTT to run. And then what advantages are we going to accrue out of it? The over-the-top services have existed for quite some time now but in the presence of cloud this becomes very interesting because OTT has its own infrastructure like we can think about WhatsApp, YouTube, having their own content delivery networks, CDNs. But the presence of cloud service providers which are there to earn revenues makes or creates an opportunity for over-the-top services. Here it is the OTT service providers which have the liberty or the room to play because OTT services are so out of the box that they can think about unprecedented and unheard-of ways and means to manipulate existing infrastructure to their own advantage. That is why it is important for us to understand how and why cloud service providers need to join hands with the OTT service providers. The OTT service providers make a lot of money. They have disrupted classically understood business value chains. So once the cloud service providers are going to join hands with them it is going to result into unprecedented revenues for them as well. Let's look at the understanding of the OTT cloud service infrastructure which is ready for providing its services to OTT service providers by the cloud service providers. I've taken this diagram from a book. We've been using next-generation architectures and protocols by Tony Zhenevsky all along. But this is another book, Internet Technologies for Fixed and Mobile Networks by Artec House 2015 by the same author. Here we can see that there is a complete layered architecture starting from the API and the runtime environment, framework, development environment to the services which could be provided to the OTT service providers like identity, access control, caching, messaging. And then we have the query and response database mechanism like SQL from Azure for instance. And then we have the more bare metal, brick and mortar infrastructure like operating system that runs virtual machines, storage, internet connectivity, etc. And then we have the physical data centers. Now all of this is now at the service at the mercy of OTT service providers which make immense use of it and in turn do give revenues and profits to the service providers. I've taken an example of it was a paper published in 2022 by Yonsuli and others. The prediction of content success and cloud resource management in Internet of Media, particularly Internet of Media actually means where the audio visual or multimedia content is the primary content of that service OTT provider. Internet of Media Things Environment, it was published in electronics magazine in 2022. Now you can see here we have the OTT users on the left hand side. We have the cloud infrastructure providing network as a service in between. And then we have the OTT cloud services, the services which are providing their services to the OTT platform or OTT service provider. The cloud services here in this particular example include this web server. You can identify the layers yourself. The encoding, streaming, storage services and then certain machine learning like deep queue network analysis with a long and short term memory based cloud resource allocation. It is their own proprietary algorithm that they run for OTT platform and then they have certain common classification mechanism. Now this OTT cloud service infrastructure is what is now providing the mechanisms to the OTT platform. Now you see what a nice relationship exists between the service provider as a cloud service provider CSP and the OTT provider. Now the cloud services for OTT come certainly in certain forms and kinds. The OTT service providers now need appropriate cloud service platforms. The example that we've seen is from the multimedia content viewpoint. Now the relationship of OTT service and provider or the service platform and the cloud service provider is going to determine the dynamic and flexible assignment and retraction of the resources. So the beauty about OTT using cloud is OTT service providers are now going to subscribe to cloud based computing service yielding a lot of advantages. First the OTT service platform would now be dedicated fully on the media service provisioning that's on the quality of the content itself relating to certain quality of service requirements. Then some competitive media services would also be provided in addition to the media itself. This means now the OTT service provider is developing its own niche and is not worried has delegated the resource allocation and deprovisioning to a cloud service provider. So it means it's at liberty to flexibly use and unused depending upon the active or incumbent number of users. If there is a surge, a certain surge of users for a certain service request, the presence of cloud service provider is going to ensure that there is no playback cutoff which is detrimental to the provisioning of services and revenues for the OTT provider.