SOA filling the Gaps

  More than 4 years ago I was asked if Public Cloud Core Banking is a Hype or a Short Term Reality? If you had read the post, you would probably find the answer that it was probably Hype and not Short Term Reality . This post Revisits the same issue. Size Matters The issue is a major issue for Large Banks. Those banks use IBM Mainframe for executing their Core Banking systems.  Smaller Banks used two decades ago UNIX based Core Banking Packages.  The Systems Availability, Scalability and Security was not as high as the Mainframe based Core Banking Systems, but it was probably good enough. My very limited Study I looked for real Case Studies of deployments of Core Banking system in the Public Cloud . I looked for articles and Research Notes by Googling. I did not find much. No real Case Studies of Large Banks transforming their Core Banking to Cloud Based systems. I refer to the following articles: Mckinsey's  Core systems strategy for banks   Deloitte's Cloud ...

Many large banks are IBM Mainframes users. They use mainframes for decades. They use other platforms as well, but their Core Banking systems are deployed on Mainframes. Recently leading Cloud Computing vendors such as Amazon , Microsoft and Google approached large banks in order to start migration of systems to their Public Clouds.  I looked for evidence supporting the notion that Banks are transforming from Mainframes to Public Clouds. I found no evidence. I am not the one to be blamed for not finding any significant evidence, because there is no evidence supporting the notion cited above.  Banks are using Public Clouds but... Like many other organizations, banks are using Public Clouds applications. However, they do not use it for Core Banking systems deployment. They use Public Clouds for applications which are less integrated with the Core Banking systems. If they will not use Public Clouds for Core Systems, IBM Mainframes will be used for many years. Public...