SONATA project

Different specialist departments at PostFinance complained that too much time was passing between the initial idea for a new financial product and its market launch. By contrast, the IT department was of the opinion that new products and features were not specified accurately enough. Investigations by Paranor showed that there was no consistent language or approach for developing and recording requirements.


Paranor tackled the problem with a model-driven specification architecture (MDA) with three levels: Business, System/Organisation and Design level.


Product Management was responsible for the first level and received from Paranor a method and a language (domain-specific language, DSL) for business modelling. The business model contained graphical and text-based components and was saved as a structured model. IT was responsible for the second and third levels; Paranor again provided the method and the necessary DSLs. The consistency of the models eliminated the risk of any media discontinuities, and at the end of the process it was possible to generate code.


Paranor acted in the role of general contractor in this consultancy brief and thus assumed leadership in all phases, from the needs assessment and development of ideas to implementation and introduction. After completion of the brief, the organisation units of the customer were able to work independently with the models and thus shorten lead times for new products.

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