HINT: Print and web document in a single step

InDesign documents to print and to use its content for web purposes can be done with almost no additional work.
Compositors should follow this abbreviated list of rules:
a) Use character and paragraph styles and properly mark titles, leads, text and image captions.
b) If an article consists of several boxes like title, caption and image, group them together for they can be recognized as an article entity.
c) Do not let overlap boxes from one article to another article or they will be merged into one article.
d) If an image or marginalia must appear at a certain text position then anchor this box in the main text.

Now use BatchXSLT for InDesign to get the content out of InDesign and hand over the created output to your web team. They can handle the created XML.
It is not a compositors job to map styles to XML tags to create the very special XML format requested by the web guys.