What is Common Data Service?

Common Data Service is a cloud-based data storage and management system that standardizes your data across business applications like Dynamics 365, Office 365, mobile apps, and Power BI. 

Your data is stored in standard (or customized) entities, similar to how a table stores data in database. If you use Common Data Service, your suite of business applications feed data predictably to these entities, allowing simple data sharing, data mining, and business intelligence.

Just like a sports game, companies have to train hard, use the latest technologies and strategies to out play their opponent and keep their rankings.