CDO is shorthand for several words such as closed, when padlock, etc. It probably refers to the situation that keeps a leading position in a company. For example, which is closed, shut down or changed.
The CDO is the Manager Director of new creation in the digital world that is directly dependent on the CEO who say is the head of the company. The CDO has as main task the push strategy and the business organization towards new technologies and the digital world. They are usually staff with absolute mastery of the digital world and internet and management capabilities.