-*Note:* at the moment only the conceptual graph is implemented, and no comments are allowed in textual descriptions.
-At least the former is planned, and also probably a way to indicate relative identifiers.
+**TODO** list:
+
+ - functional integrity constraints (CIF),
+ - inter-relations constraints (or, and, xor...),
+ - inheritance with the right symbol (triangle).
+
+*Note:* temporary dependency to [underscore](http://underscorejs.org/); good library but used so far only for its shuffle() method.