When designing courseware for online use, the language of the Web has to be oriented towards structure, not layout. In addition, depending on computer literacy, the user can take control of the way a Web page looks on the screen by changing their own browser preferences. Furthermore, there are technical issues such as bandwidth limitations, modem speeds, and accessibility that may restrict instructional methodologies. For example, limited speed and bandwidth will obviously mean slower performance for sound, video, and intensive graphics. Navigation Web sites need to have frequent and consistent navigational tools for the learner.
Inline graphics are easy to use and misuse, and are most effective when used sparingly.
To make it easier to decode the symbols, include the 'redundant' text labels. Although a formal navigation bar is not essential, it is a more organized approach to Web site design than navigational links that are embedded directly in the text. Some might argue that either will suffice, but links embedded directly in the text can have adverse effects by interrupting the reader's flow. Therefore, it is better to provide linking options either before or after the main body of text to ensure that the flow of information is not interrupted and that the main point is conveyed. Therefore, it is beneficial to keep the text concise.