**2. Suggested design process**

Pettersson (2002) suggests a design process for instructional messages, which comes with six steps: 1) Analyse requirements; 2) Plan contents; 3) Design language of messages to commu‐ nicate; 4) Deliver and present messages; 5) Testing; 6) Refine designs.

This paper gives an overview of what to do when dealing with instruction design but further details are not explained. Two aspects of these steps, the design of language and testing are also recognised as important by other researchers. Sherman & Craig (2003) used case studies to understand the design of user documentations and instructions. Their study involved both the language communication and evaluating/ testing of documentations; the overall design processes were not mentioned. Similarly, ISO/IEC GUIDE 37(1995) suggested two types of assessing methods for general user instructions: desk research and user testing. Again it did not make suggestions on the design process of general instructions.

© 2013 Li et al.; licensee InTech. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. © 2013 Li et al.; licensee InTech. This is a paper distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. © 2013 Li et al.; licensee InTech. This is a paper distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

**Figure 1.** Examination of the product
