Writing tasks are often a day to day duty of any professional whether they are at a supervisory level or top level management. They can include administrative tasks such as writing procedures, proposals and reports to writing that requires specialised knowledge such as scientific writing to reviewing and/or editing tasks which require professionals at some time to review and perhaps edit other peoples writing.
For professionals to be successful at technical writing they must understand what is required. First they must define the need (what is to be written and why), undertake the required research, analyse the information and deduct what is relevant. Then they must bring it all together in a clear and concise format for presentation to their audience.