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In engineering, technical documentation refers to any type of documentation that describes handling, functionality and architecture of a technical product or a product under development or use. The intended recipient for product technical documentation is both the (proficient) end user as well as the administrator / service or maintenance technician. In contrast to a mere "cookbook" manual, technical documentation aims at providing enough information for a user to understand inner and outer dependencies of the product at hand. The technical writer's task is to translate the usually highly formalized technical documentation produced during the development phase into more readable prose.
The documentation accompanying a piece of technology is often the only means by which the user can fully understand said technology; regardless, technical documentation is often considered a "necessary evil" by developers. Consequently, the genre has suffered from what some industry experts lament as a lack of attention and precision.
Forms of technical documentation 
Technical documentation may include:
- specifications of item or of components/materials
- data sheets of item or of components/materials
- test methods
- manufacturing standards
- quality management system requirements
- information specified in laws or regulations
- verification and validation
- Quad charts
During development, a multitude of document types will play a significant role:
and various intermediate or intervening documents thereof.
Standardization of forms 
Traditionally, most forms of technical documentation have lacked recognized standards, though this is changing. So far, ISO has published a series of standards related to technical product documentations and these are covered by ICS 01.110. The ones that are not covered by ICS 01.110 are listed in the subsection below.
Discipline specific 
Technical documentation formats 
See also 
- Document management system
- Specification (technical standard)
- Technical communication
- Technical editing
- What is "technical documentation"? at Transcom.de. Accessed February 25, 2013.
- What is Technical Documentation? at Tetras Translations. Accessed February 25, 2013.
- Documenting the New System at IGCSE ICT. Accessed February 25, 2013.
- The Documentation Scene by John Mobbs. Institute of Scientific and Technical Communicators, Monday, July 23, 2012.
- "01.110: Technical product documentation". International Organization for Standardization. Retrieved 10 June 2009.
- "ISO 15787:2001 Technical product documentation -- Heat-treated ferrous parts -- Presentation and indications". International Organization for Standardization. Retrieved 10 June 2009.
- "ISO 3098-0:1997 Technical product documentation -- Lettering -- Part 0: General requirements". International Organization for Standardization. Retrieved 10 June 2009.
- "ISO 10209-1:1992 Technical product documentation -- Vocabulary -- Part 1: Terms relating to technical drawings: general and types of drawings". International Organization for Standardization. Retrieved 10 June 2009.
- "ISO 2162-1:1993 Technical product documentation -- Springs -- Part 1: Simplified representation". International Organization for Standardization. Retrieved 10 June 2009.
- "ISO 5457:1999 Technical product documentation -- Sizes and layout of drawing sheets". International Organization for Standardization. Retrieved 10 June 2009.