I want to know the answer to the following question:
How is the cost to create a DBMS distributed?
All the background I'm provided with is that "A common example is an email system that performs many of the functions of a general-purpose DBMS such as the insertion and deletion of messages composed of various items of data or associating messages with a particular email address; but these functions are limited to what is required to handle email and don't provide the user with all of the functionality that would be available using a general-purpose DBMS.". Is that enough to answer the question?