Interactivity and media are two essential elements in the development of online training. The degree and complexity of these elements are often directly proportional to the learner's level of interest and the amount of learning subsequently taking place. These elements are also directly related to overall cost and development time. For better understanding the information below provides a brief description of the various levels of interactivity and media with some online examples.

Interactivity Level
Interactivity provides an opportunity for the learner to practice and experience the material they are being taught. (Interactivity level descriptions are based on the U.S. government standard for e-learning systems found in the "Department of Defense Handbook: Development of Interactive Multimedia Instruction".)

Interactivity
Media
 
 

Authoring Tool
Authoring tools are commonly used to create eLearning modules. These tools require less technical knowledge to master and are used exclusively for applications that present a mixture of textual, graphical, and audio data. These modules can be published to conform to some international standard, such as SCORM (Shareable Content Object Reference Model) or AICC (CBT) (Aviation Industry CBT Committee) and can be deployed on an LMS.