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doc/source/containers.rst

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+===============
+Container types
+===============
+
+Containers allow to manage collections of values of homogeneous type.
+Three container types exist.
+
+A container is a non-mutable structure once it has been locked.
+Consequently, only insertion procedures are needed.
+
+Lists
+-----
+
+Correspond to an ordered collection of values belonging to an elementary type.
+
+At its creation, ...
+
+
+Sets
+----
+
+Correspond to an unordered collection of values belonging to an elementary type.
+
+
+Dictionaries
+------------
+
+Dictionaries allow to associate a `key` to a `value`. Values can be retrieved through their associated key.
+Values must belong to an elementary type and keys must be *OBIStr_t*.