<p>TC is not necessarily just about writing manual, or document the research. TC is a very broad term. TC in general, is the process of making and sharing information and ideas with others in the workplace, and as a set of applications - the documents, and manual you write. This is the definition from my book, “Technical Communication”.</p>
<p>Now, you are confused by the word “communication”. Whenever you see “technical communication”, just remember that it’s a fancy word for “speaking, writing, reading, and listening” effectively by professionals. Professionals need not to be engineers or scientists. </p>
<p>An ad is considered technical communication as well. A technical manual, such as the handbook of a Nikon DSLR is a technical manual. </p>
<p>Primary research papers are definitely written by engineers or scientists. This is why we have to take writing classes as an engineer / scientist at undergraduate level, called “Technical writing”. </p>
<p>The engineers use APA and I believe science people still use MLA?</p>
<p>A writer can collaborate with an engineer or scientist, and write the documents together. Note that engineers and scientists are not writers, and they are not assumed to be good at presentation ideas to others. </p>
<p>For example, the DSLR Camera handbook. Right, the engineers probably know about the theory. But the customers need NOT to know how the images are formed. The technical writers will gather information from the development team, and request enough information so that they can write the handbook. You see there are images in the handbook (a screenshot of the menu???) That’s informative, which is an emphasis of technical writing.</p>
<p>At the level of consumers, writings are mostly done by technical writers. Moreover, everyone is doing technical writing, more or less: memo, powerpoint, business plan, poster, email, etc these are all examples of technical writing.</p>
<p>If you are referring to fiber optics, that is not technical communication. It’s communication technology. TC is defined the way I defined.</p>