Question

Is the following an informal or formal communication channel?

memo addressing new dress code policy

a. formal
b. informal

Answer 1

it's a formal communication channel

Answer 2

There is debate as to wheter memos are informal or formal. This is because people have different idea of the contents of a memo. Consider a memo about a disciplinary action, which is a more formal memo. While an informal memo might be about planning for a big party. In this, since the memo is about a new dress code policy, I would say it would be considered formal (A).