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We propose in this paper a design for a framework dedicated to collections data structures, based on which we are able very easily to use, to adapt, to transform, and to extend the collections. A certain collection type is seen as a set of features which are added to a storage support. The design is based on Decorator together with Proxy and Template Method design patterns. This design choice allows features to be dynamically added or removed and from this, a high degree of exibility in creating and managing the collections is achieved. The framework could be easily extended, but in an organized and reliable manner.

2010 Mathematics Subject Classification. 68P05.1998 CR Categories and Descriptors. E.1 [Data]: Data Structures; E.2 [Data]: Data Storage Representation.

Key words and phrases. data structures, collections framework, design patterns, genericity, representation.This paper has been presented at the International Conference KEPT2013: Knowledge Engineering Principles and Techniques, organized by Babeș-Bolyai University, Cluj-Napoca, July 5-7 2013.