Technical Communication
http://en.wikipedia.org/wiki/Technical_communication

Wikipedia

Abstract:

Technical communication is the process of conveying usable information through writing or speech about a specific domain to an intended audience. Information is usable if the intended audience is able to perform an action or make a decision based on its contents. Technical communicators often work collaboratively to create products (deliverables) for various media, including paper, video, and the Internet. Deliverables include online help user manuals, technical manuals, specifications, process and procedure manuals, reference cards, training, business papers and reports.