The Salesforce Media Cloud data model is characterized by a blend of both custom and standard objects. This hybrid structure allows for the flexibility to tailor the platform to specific industry needs while leveraging the robust foundational features of Salesforce. Standard objects provide core CRM functionalities, such as accounts, contacts, and opportunities, which are essential for managing customer relationships and sales processes. Custom objects are added to support unique business requirements specific to the media and publishing industry, such as managing ad inventories, media plans, and ad sales. This combination ensures that Media Cloud can cater to the complex and specialized needs of media and publishing companies.