Users with different goals and knowledge may be interested in different pieces of information with different presentation on a hypermedia page and may use different navigation(limiting browsing space, suggesting most relevant links to follow, or providing adaptive comments to visible links).[Peter1] Different terminals have different power to provide different quality of hypermedia information. All these trigger the motivation to information personalization - adaptive media technologies.
Growing Book is an electronic book co-developed by a group of teachers who are geographically dispersed throughout the world and collaborate in teaching and research. The Growing Book is constantly evolving and it can be organized in different ways to be used in a regular semester course, a short course, an introductory exposition, an advanced seminar, etc. These multi-level, multimedia adaptive usages are supported by MWAC model-enhanced document technology. We can design a model-enhanced document by introducing extra MAWC tags into the document. The Growing Book provides an AWP operation that can generate multi-level, multimedia presentation from the model-enhanced hypermedia documents. [Chang1] So far, we can conclude that the MAWC tags are the source of the multi-level, multimedia adaptability of Growing Books. But unfortunately, we still have to manually add MAWC tags to Growing Book documents. That's boring and also easily let some errors slip into tag-enhanced hypermedia documents. Thus we decide to develop a convenient tool to add tags to generate model-enhanced Growing Book documents .