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Phonak – Efficient Development for new mobile device

logo phonak 40mmA complex development task, limited resources, and deadline pressure. These are the conditions under which Phonak began development on its new product generation based on dynamic FM technology. EVOCEAN supported the project team from the beginning. PDF-File

Using Model Driven Development with Rational Rhapsody® from IBM allowed them to bring the inspiro transmitter device based on completely new technology to a state of market readiness in just 12 months. EVOCEAN supported the project team from the beginning, from the evaluation of the development environment through design of the software architecture to system integration.


phonak_inspirio_40mm.gifPhonak Communications AG is a leading manufacturer worldwide of highly miniaturized wireless communication systems. At the end of 2006, the company started development of the inspiro, a new transmitting device for instruction in classrooms with hearingimpaired students. inspiro is based on the revolutionary "Dynamic FM" platform, which has increased language comprehension in situations with excessive noise to a level previously considered impossible. inspiro combines a graphical interface with digital audio signal processing and a number of wireless links. The correspondingly complex, completely new software had to be developed within a very short time and using existing internal resources.




A comprehensive analysis of the initial situation showed that the only way to reach the desired goals was by using completely new development tools and target hardware:


  • UML with Rational Rhapsody® from IBM
  • Target platform with ARM9, USB, 3 proprietary wireless links,digital audio signal processing
  • RTOS Sciopta, GUI with Peg++, C++.


The critical element for the success of the project was applying Model Driven Development (MDD) using Rhapsody®:


  • Incremental iterative process
  • Graphical display of the new application (UML) in reusable models
  • Code generating from models to target platform
  • Fast prototyping for early validation of target hardware
  • Complete integration of development tools
  • Parallel development at multiple locations.


The role of EVOCEAN
EVOCEAN is a "Advanced Business Partner" of IBM in Switzerland. As the official Rational Rhapsody® competence center, we have not only access to all tools, but also to the internal
know-how and knowledge pool of the Rhapsody® developers. Our team of consultants has broad technical knowledge and many years of experience in the area of Model Driven Development.


We offered Phonak support in the following areas of concern:


  • Consulting to select a development environment
  • Coaching for introducing MDD (UML) and using Rhapsody®
  • Onsite support as Lead Software Architect and in developing various key components
  • Support in project management
  • Responsibility for integrating all components into the application
  • On-the-job training for Rhapsody® and MDD method
  • Know-how transfer and exchange of experience.


Added value for the customer
Model Driven Development and Rational Rhapsody® allowed us to keep a handle on the considerable complexity of the project and lower the error rate significantly: We met the ambitious goals related to
functionality and quality.


  • Launch on schedule with existing internal resources
  • High market acceptance of the new product
  • No major product improvements required after the market launch
  • Kick-start for employees in Model Driven Development (method and software competence)
  • Solid software architecture for subsequent development
  • Well established development environment for follow-up projects
  • Universally comprehensible models and current documentation; very easy to train new employees.

Article in the IBM Customer Magazin Think, 1_2011

Customer Quotations

  • SIX Financial Information Ltd

    The EVOCEAN continuous improvement method stabilized our processes and had a positive influence on the quality and on the satisfaction of the employees. I would recommend to use this approach at any time. Continuous improvement must become a part of everyday work."

    Michael K. Steinhöfel-Cordova
    Head of Quality Management

    SIX Financial Information

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  • Mettler Toledo AG

    „Now the advantages of our solid foundation work will have a large impact. A model is easy to adapt and maintain and new functions can be integrated very fast. In combination with the automatic code generation and testing we now will be strikingly faster… with a consistent high quality. Today we save time and money – not least thanks to IBM Rational Rhapsody!"

    Wolfgang Boos
    Head SW Development

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  • Phonak Communication AG

    „Model Driven Development with Rational Rhapsody® was a critical success factor for developing inspiro within the required schedule and market needs. Thanks to EVOCEAN's support, we were able to implement the tool quickly and apply the methodology effectively."

    r. Rainer Platz
    Director of R&D

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  • soplar s.a.

    „We would repeat our decision to choose Rhapsody®at any time. The strikingly improved efficiency, higher quality, and flexibility plus reusability of models make any adverse details negligible. Today we develop more machines with fewer resources in less time."

    Reinhold Wüstner
    Product Development

    soplar- Model Driven Development with Rational Rhapsody

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  • Schleuniger AG

    „Thanks to the fully automatic code generation with Rhapsody®we could accelerate the software development.“

     Thomas Nyffenegger
    Team Lead Software 

    Schleuniger AG

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  • Schindler Elevator Ltd.

    „Seamless integration of the development environment is one of our critical success criteria. Model Driven Development with Rational Rhapsody®allows us to generate the code for the target platform direct from the UML model. Integrating the debugger saves us enormous amounts of time in developing complex, embedded real-time applications. Thanks to EVOCEAN's support, today we can use this tool efficiently."

    Juan Carlos Abad
    Project Manager

    Schindler Elevator Ltd.

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  • Mettler Toledo AG

    „I would recommend Rhapsody anytime – by using Rhapsody I can reach a new level of programming and efficiency.“

    Wolfgang Boos
    Head SW Development

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  • soplar s.a.

    "Starting to use Rational Rhapsody®without coaching or training is not recommended. Understanding the why behind certain processes is essential to working effectively. Training with EVOCEAN was very valuable for me in this regard."

    Vitali Mozgovoi
    Software Development
    soplar- Model Driven Development with Rational Rhapsody

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  • Schmidhauser AG

    "A picture is worth a thousand words. Thanks to Rational Rhapsody® models, we can discuss new functionalities much better with our customers – even without knowledge of the code."

    Peter Bode
    Project Manager Mobile Drives

    Schmidhauser AG

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  • Mettler Toledo AG

    „Development in the embedded area should be platform dependent and the used tools have to support this!“

    Wolfgang Boos
    Head SW Development

    Logo Mettler Toledo

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  • SIX Financial Information Ltd

    “Our vision was to know at all times in which process phase a change is.”

    Michael K. Steinhöfel-Cordova
    Head of Quality Management

    SIX Financial Information

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  • Feedback - SysML Customer Workshop

    „The tool independant in-house SysML Workshop from EVOCEAN met our expectations fully and was further very practically orientated. The comprehensive experience of the trainer and the well designed interactive exercises were very valuable to us. We regret that we did not decide to schedule the workshop for 3 days - we would have had more time for the valuable discussions and exercices."

    Dieter Pfenniger
    Research & Development


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  • Hamilton Medical AG

    „Employing our platform strategy and Model Driven Development with IBM Rhapsody® enables us to bring our innovations rapidly to numerous ventila-tion solutions.“

    Gion Durisch
    Head of Software Development

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