A system is the overall “thing”, or a core element you're looking to have and/or implement in your business. It's something that helps your business run. The processes are all the things you do in order to make any given system work most efficiently.

The documentation of a series of actions or steps taken in order to achieve a particular end result in your business.

All electronic data processing, information, record keeping, communications, account management and other web-based systems.

The customer journey is the complete sum of experiences that your prospects and customers go through when interacting with your company from start to finish.