D23 Modularisation Plug-in

Overview

Modularisation Plugin realises a support for structuring Event-B developments into modules. The objective is to achieve better structuring of models and proofs while also providing a facility for model reuse. It is expected that the structuring approach realised in the plugin would complement the functionality A/B-style decomposition plugin.

The module concept is very close to the notion Event-B development (a refinement tree of Event-B machines). However, unlike a conventional development, a module is equipped with an interface. An interface defines the conditions on the way a module may be incorporated into another development (that is, another module). The plugin follows an approach where an interface is characterised by a list of operations specifying the services provided by the module. An integration of a module into a main development is accomplished by referring operations from Event-B machine actions using an intuitive procedure call notation.

The plugin was developed in Newcastle University in cooperation with Abo Academy and Space Systems Finland.