Dear all, following the extremely fruitful meeting in Zurich, here is the revision of the proposed document. A few anticipations about the content: - the concepts are always the same: abstraction from short-lived details using mixins, extract/aggregate/publish pipe for the measurements - the syntax is different: I tried to make it simpler and more powerful: only 2 kinds in the model (one resource and one link), but the monitoring infrastructure may be hierarchical from 0 to n levels - a section about conformance levels has been added: the monitoring API is optional, so we need to define a level 0 to avoid confusion. The other two levels corresponds to the capability of creating user mixins (level 2) or not (level 1) - there is a detailed example of a simple case using an HTTP rendering You can directly interact with the LaTeX document if you like, though the pdf is attached as well. The LaTeX document is available on a specific collaboration platform: www.writeLatex.com. It is possible to update the document, but I ask you to follow these simple instruction, to avoid to lose the control of the document. If you want to add a note, please use the \rem command, whose usage is described by the following example: \rem{Augusto Ciuffoletti}{My comment goes here} placed near the sentence you want to comment. A footnote will be generated ("My comment goes here"), signed with your id ("Augusto Ciuffoletti"). You can access the document here https://www.writelatex.com/26835vgbcrcwithout authentication needed. The browser window is divided into two parts: on one side you can edit the source, on the other you see the updated document view. You can also download the pdf or a zip of the current state of the document. There is no "revision history", so it is impossible to "undo" a change. Augusto -- Augusto Ciuffoletti Dipartimento di Informatica Università di Pisa 56100 - Pisa (Italy)