Improve Productivity by Leveraging Existing Code for Embedded Software Development Paul Urban, IBM

Challenges facing developers Increasing productivity while design complexity increases Managing changing requirements Poor communication with customer on code level alone Some documentation is still required Target hardware may not be available for early prototyping More documentation required for embedded systems Collaboration with large teams, often located globally Long learning curve for new team members Maintenance of long life products is difficult with staff changes

Increasing productivity while design complexity increases

Managing changing requirements

Poor communication with customer on code level alone

Some documentation is still required

Target hardware may not be available for early prototyping

More documentation required for embedded systems

Collaboration with large teams, often located globally

Long learning curve for new team members

Maintenance of long life products is difficult with staff changes

Typical software development projects Typical software projects consist of new code, modifications to existing code, existing code not changing and third-party libraries Documentation for code is often out of date, if it exists at all Third-party libraries Existing code New features Modified code

Typical software projects consist of new code, modifications to existing code, existing code not changing and third-party libraries

Documentation for code is often out of date, if it exists at all

Development process is evolving… Model Driven Development MDD t 1960 1970 1980 1990 2000 2010 ASM C

Engineers report… MDD more effective then traditional hand coding Embedded Market Forecasters 2006 Survey Results Documented in “ What Do You Do When the Horse You’re Riding Drops Dead?: Why Model Driven Design is Emerging as a Preferred Best Practice”

Proven advantages of MDD Embedded Market Forecasters 2006 Survey Results Documented in “ What Do You Do When the Horse You’re Riding Drops Dead?: Why Model Driven Design is Emerging as a Preferred Best Practice”

Model-driven development Model-driven development (MDD) enables developers to capture the design using graphical models Visualizing design concepts increases understandability Use Object Management Group (OMG) Unified Modeling Language (UML) or a domain-specific language (DSL) Achieving the full benefits of MDD requires model and code synchronization

Model-driven development (MDD) enables developers to capture the design using graphical models

Visualizing design concepts increases understandability

Use Object Management Group (OMG) Unified Modeling Language (UML) or a domain-specific language (DSL)

Achieving the full benefits of MDD requires model and code synchronization

Re-use software assets Rhapsody can incorporate external code to Reuse code from other projects as a library Integrate code developed by a third party Import code generated from another tool Such code can be: Viewed externally (code visualization) Provides easy referencing from the model Automatically allows graphical visualization of your software Seamless workflow between model and hand-written code Automatically reverse engineered to become part of the model RTOS Legacy Code Rhapsody Real-Time Framework Rhapsody Generated Code

Rhapsody can incorporate external code to

Reuse code from other projects as a library

Integrate code developed by a third party

Import code generated from another tool

Such code can be:

Viewed externally (code visualization)

Provides easy referencing from the model

Automatically allows graphical visualization of your software

Seamless workflow between model and hand-written code

Automatically reverse engineered to become part of the model

Visualize existing and third-party code Visualizing code clarifies the structure and architecture of the application. Streamlined reverse engineering and visualization workflow Automatic generation of diagrams from code for documentation

Visualizing code clarifies the structure and architecture of the application.

Streamlined reverse engineering and visualization workflow

Automatic generation of diagrams from code for documentation

Integrating existing and third-party code More easily understand interfaces between existing code and new features New features External code

More easily understand interfaces between existing code and new features

Modify existing code Dynamic model and code collaboration Code respect enables reuse while maintaining the structure, naming, location and order of existing code Reverse-engineer existing code, changes at code level round-tripped into model Respect

Dynamic model and code collaboration

Code respect enables reuse while maintaining the structure, naming, location and order of existing code

Reverse-engineer existing code, changes at code level round-tripped into model

Rhapsody works the way you do Work at the code or model level Reduce learning curve and increase effectiveness Dynamic Model Code Associativity (DMCA) keeps design and code in sync Change one view, the others change automatically Critical for realtime embedded software development

Work at the code or model level

Reduce learning curve and increase effectiveness

Dynamic Model Code Associativity (DMCA) keeps design and code in sync

Change one view, the others change automatically

Critical for realtime embedded software development

Model-driven testing Bring the benefits of abstraction and automation to testing Reduce defects early in the process when they are less costly to fix Deliver products meeting customer expectations Simulation Finding & Correcting Errors Sequence Diagrams Requirements-based testing Automated unit testing Host based Target based

Bring the benefits of abstraction and automation to testing

Reduce defects early in the process when they are less costly to fix

Deliver products meeting customer expectations

Simulation, execution and animation Simulate to verify that model is correct Best practice for avoiding errors and thereby helping to reduce development cost Enhanced communication of intended behavior to customer Execute on the target and animate on the host to verify the application is correct

Simulate to verify that model is correct

Best practice for avoiding errors and thereby helping to reduce development cost

Enhanced communication of intended behavior to customer

Execute on the target and animate on the host to verify the application is correct

Demo Demo Time

Summary Rhapsody visualizes existing code to improve communication A picture is worth a thousand words Documents undocumented code using customizable formats View structure and architecture of the current design Develop complete applications while including existing libraries Rhapsody enables you to work the way you want Work in the model or code with changes synchronized Automates tedious coding tasks Development continues even when target hardware is not available Leverage external code into your application Design level debugging enables early validation of design functionality

Rhapsody visualizes existing code to improve communication

A picture is worth a thousand words

Documents undocumented code using customizable formats

View structure and architecture of the current design

Develop complete applications while including existing libraries

Rhapsody enables you to work the way you want

Work in the model or code with changes synchronized

Automates tedious coding tasks

Development continues even when target hardware is not available

Leverage external code into your application

Design level debugging enables early validation of design functionality

For more information To learn more, please visit: www.telelogic.com Learn about IBM Rational ® software at: IBM Rational software IBM Rational Software Delivery Platform Process and portfolio management Change and release management Quality management Architecture management Rational trial downloads Leading Innovation Web site developerWorks ® Rational IBM Rational TV IBM Business Partners IBM Rational case studies

To learn more, please visit: www.telelogic.com

Learn about IBM Rational ® software at:

IBM Rational software

IBM Rational Software Delivery Platform

Process and portfolio management

Change and release management

Quality management

Architecture management

Rational trial downloads

Leading Innovation Web site

developerWorks ® Rational

IBM Rational TV

IBM Business Partners

IBM Rational case studies

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