When giving information in different forms such as presentations, meetings or briefings you will have to consider your audience before communicating your point. Things you have to think about will be whether they are internal or external audiences, their level of knowledge, the best way for you to communicate and your aims.
In most instances, you style of language will be formal except in certain circumstances with people who work internally to the business. Alongside this with people inside of the company you can use abbreviations as they will have the knowledge of the business to understand and respond appropriately. Whereas when you are speaking to customers/ clients they may not have the lingo of the company so things will need to be said in full and explained to them. Also when you think about the aim of your information this will affect the way you deliver the information. If there are some feedback or changes that need to be relayed to someone internal this could be done appropriately by email or phone call whereas if this was external this should be done by face-to-face meeting due to the nature and also so that they can reply and get a quick response.