Technical writing is written communication in fields with specialized vocabularies, such as engineering, health, science and technology, according to About.com. The purpose of technical writing includes completing projects and persuading customers among other possible internal practices. According to Wikipedia, the Society of Technical Communication defines technical writing as communicating about technical or specialized topics or providing instructions about how to do something.
According to About.com, Gerald J. Alred writes in the "Handbook of Technical Writing," "The goal of technical writing is to enable readers to use a technology or understand a process or concept. Because the subject matter is more important than the writer's voice, technical writing style uses an objective, not a subjective, tone." This leads Alred to conclude that the style of technical writing is one that is purposeful and direct and that technical writers should emphasize concision and clarity above an stylistic flourishes or verbal embellishments. For Alred, technical writing should make use of figurative language only when it promotes greater understanding for the reader.
According to Wikipedia, Elizabeth Tebeaux and Sam Dragga write in "The Essentials of Technical Communication" that good technical writing is focused, concise and free of errors. According to Mike Markel in "Technical Communication 10th Edition," as referenced by Wikipedia, the main focus of technical writers is to make their documents sound as clear as possible without the use of overly technical language.