MoDisco

Legacy systems embrace a large number of technologies, making the development of tools to cope with legacy systems evolution a tedious and time consuming task. As modernization projects face with both technologies combination and various modernization situations, model-driven approaches and tools offer the requisite abstraction level to build up mature and flexible modernization solutions.

MoDisco provides an extensible framework to develop model-driven tools to support use-cases of existing software modernization :

• Quality Assurance: verifying whether an existing system meets the required qualities (detection of anti-patterns in existing code and computation of metrics.)
• Documentation: extraction of information from an existing system to help understanding one aspect of this system (structure, behaviour, persistence, data-flow, change impact , etc).
• Improvement: transformation of an existing system to integrate better coding norms or design patterns.
• Migration: transformation of an existing system to change a component, the framework, the language, or its architecture

MoDisco Overview In each case, modernizing an existing software system implies:

• Describing the information extracted out of the artifacts of this system
• Understanding the extracted information in order to take the good modernization decisions
• Transforming this information to new artifacts facilitating the modernization (metrics, document, transformed code, ...)

• Metamodels to describe existing systems
• Discoverers to automaticaly create models of these systems
• Generic tools to understand and transform complex models created out of existing systems
• Use-cases illustrating how MoDisco can support modernization process