>Unfortunatly, I don't know the answers to these questions. I just did a search for him on google.com. His personal web site is www.theproblemsolver.nl and it looks like he sold his framework to a company called FairTree who can be found at www.fairtree.nl. The framework can be downloaded from there, and has documentation (sort of). The class part of the documentation seems to be missing. Other than that, I just dug into the code.
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>The reason for a seperate object for each "set command" is because he leaves them instantiated for the life of the app. He could have written one object that had a property for each of the set commands, but the ultimate OOP (notice I used the word 'ultimate' rather than 'true') way to do it is to have a set command object that you subclass for each specific set command instance that you need (ie. One for clock, one for point, one for this, one for that, one for the house that Jack built, etc., etc., etc.).
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>Other than that, I haven't dug into this framework much. Maybe on a rainy day...

BTW, can you tell me the story of a house, what Jack built? We have this poem translated and it sounds very funny (!), but I didn't know, it was a translation. Just curious to see this poem in English, who is the author, BTW?

Thanks in advance.