Our Customer Stories

Schmidhauser – Developing innovative solutions efficiently

The development of safety-relevant components to meet stringent quality requirements is demanding. Schmidhauser AG meets this challenge successfully with Model Driven Development and Rational Rhapsody® from IBM.A conversation with Peter Bode, Project Manager for Mobile Drives. PDF-File

Model Driven Development with Rational Rhapsody® in C – drive controllers for vehicles

Schmidhauser AG is a member of the Lenze Group and a competence center for customer-specific drive controllers. With 55 employees at the headquarters in Romanshorn, Switzerland, the company provides a diverse range of services in product development (hardware, software, and power electronics). At the end of 2006, Schmidhauser decided to develop its mobile drive controllers for vehicles with the Embedded UML Studio from Willert Software Tools. The tool is based on Rational Rhapsody® and is focused on target platforms with small memory Footprints. The main factors driving the decision were the high quality requirements that must be met by safety-relevant components of Schmidhauser.

 

Responding better to customer needs
For Peter Bode, only Rhapsody® was under consideration from the beginning – especially because of its leading options for modelling and full automatic code generation. "Often we are confronted with the situation that product requirements have not yet been completely defined at the beginning of the project. With Rhapsody®, we can represent new functionalities graphically and present various possibilities for a solution to our customers. This allows us to respond flexibly and address needs much better."

 

Success-critical advantages
"Many of the products we develop must meet extremely stringent requirements in terms of quality and electromagnetic compatibility. In addition to the advantages already mentioned, significantly better product quality is therefore a critical success factor for us." Other advantages cited by Peter Bode are

  • significantly higher efficiency
  • easy training for new employees
  • simpler software maintenance
  • better consistency when changes are made and
  • the fact that the documentation, model, and code are always at the latest level.


Accompanied project start-up
To be able to work efficiently in a short amount of time, three employees attended a relevant tool training session before Rhapsody® was introduced. A coach ensured seamless tool integration into existing infrastructures on site. The first development project was completed within nine months: two auxiliary unit inverters for the EvoBus Citaro Diesel Hybrid Bus. Currently there are three products developed with Rhapsody® on the market.

 

Lessons learned
On-site support coordinated by EVOCEAN was important for ensuring an efficient start. "The five-day Embedded UML Studio start-up training was also worth its weight in gold," adds Peter Bode. "I would recommend Rhapsody® at any time. Today we are able to concentrate on the actual problem of an application. And we are significantly more efficient than in projects in which we're not yet using Rhapsody®."

 

Looking ahead
Something Peter Bode would like in the future is an integrated solution for "Performance Testing" in the embedded software on the target platform. The next goal is for additional savings in time and money. "So far we have invested primarily in improving quality. Now we would like to improve our time to market and reduce costs by about 30%. I'm convinced that we're on the right path with Rhapsody®."

 

Technologies used

Development environment Before Rhapsody® With Rhapsody®
UML Visio Embedded UML Studio Rhapsody®
IDE Tasking / Keil Tasking / Keil
RTOS Internal development Embedded OO-RTX
Target platform ST 10 / DSP TI F28xx ST 10 / DSP TI F28xx
Programming language C C
Debugger Hitex Hitex / PLS UDE

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."

    D
    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

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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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