The telephone companies are storing their customers' call details in different formats as shown below. Each of the company wants to leverage the cloud services offered by XYZ service provider for the customers' call$-$detail management. How XYZ can support these varying data formats with its cloud service maintaining the data privacy and security? $[10$ Marks$]$Verizon Communications custamawal $...$I $.$ A$....$ Deutsche Telekom custamare' anl dntn:$1..$