I want to write about communication at work I want to mention communication meth

I want to write about communication at work
I want to mention communication methods such as email, work chat programs such as Slack and project management programs such as Trello
With mentioning its advantages and disadvantages, such as that e-mail is an old method and contains two folders for incoming and outgoing and it is difficult to keep track of many messages, but it is suitable for communicating with external companies
And such that internal chat programs such as SLack are suitable for messaging between the work team within the company, but it is not suitable for communicating with other companies in most cases.
And I want to mention the impact of cooperation between the work team to make communications successful, such as quick response and clear response, and the team’s knowledge of modern means of communication and mastery of their use
I want to mention security in terms of using applications, there are applications hosted by third-party companies (the service provider) and there are applications hosted by companies on their own servers. When to use application hosting on the company’s own servers and when to use other service providers depending on (threat model)