Composition using Event-B Notation (9 months report).
Composition is the process on which it is possible to combine different sub-systems into a larger system. Known and studied in several areas, this has the advantage of reusability and combination of systems especially when it comes to distributed systems. While applying composition, properties must be maintained and proofs obligations need to be discharged in order to the ﬁnal result to be considered valid. Our goal is to add this feature to the Rodin Platform (using Event-B notation) and study the concerns, properties, conditions, proof obligations, advantages and disadvantages when create/analysing system speciﬁcations. Since the composition maintains the monotonicity property of the systems, the sub-systems can be reﬁned independently on a further stage, preserving composition properties.
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