To start a new Ruby Project I need some more features that I know partially from Java: 1. Does Ruby support Annotations? Or is there another cool way to do this without changing the class itself? -> I need to tell reflection to do something special with the class. 2. Can I modify the getter of any instance var?! -> E.g. if an attribute defines attr_accessor, can I change the getter at runtime to do magic aspect stuff around the real get call? 3. Can we define new Keywords in Ruby? -> I am thinking of somthing like this: Define a block containing some real code and some useless keywords. Then I want to pass the block, e.g. convert it to_s and read the real code and the keywords. The keywords itself shall be ignored by ruby but can be parsed by me. (I always thought this would be a basic feature to build a DSL... but obviously real gurus can do without this...) 5. Is there a (free) UML modelling Tool for Ruby on the market? -> I need to have the architectural UML Overview!! (How do all the gbig ruby projects do this??) 6. I am missing the java toString method in Ruby. -> Isn't there an easy way to define an objects puts behaviour? Thanks in advance (and thanks for the cool language Matz!) Stefan Edlich