Microsoft Teams allows you to focus on what you're doing, rather than the tool you need to do it. Traditional systems required you to select an application (such as Microsoft Word) first, and you could create documents.

Microsoft Teams bring together all the applications into a central hub organised around activities, topics or projects. For example, in a team called "Sales Team", you may find sales discussions, documents, calendars, reports and notes.  

Microsoft Teams is structured into teams, channels and tabs. Teams are groups such as projects, activities, departments or topics.

Teams are made up of channels, that allow for the collection of specific discussions, documents, meetings and other items within a team.

Individual channels can be made private to restrict access to certain information and can be extended to those outside your organisation.