agile model-driven engineering - chalmersburden/ppts/agilemde.pdf · agile model-driven engineering...
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Agile Model-Driven Engineering
Håkan Burden Jonn Lantz
University of Gothenburg Volvo Cars Corporation
In collaboration with Jon Whittle and Rogardt Heldal
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Difficult to be innovative with external sw suppliers
– requires tight, robust and well-defined APIs!
– very very slow feedback loops, if not!
Challenges Exponential growth of software!
– maximized in e-vehicles
Off-the-shelf ≠ plug-and-play – due to complex dependencies
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Increase in-house development
+ Control of software development
+ Speed
- Volvo Cars is not a C organization
www.womenworking.com
www.need4speed.ws
The challenge is to create VCC++ • keeping the domain expertise • not getting too large
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Adafruit.com
MDE - Model-Driven Engineering
Let domain experts develop SW! – Quality
– Reuse
– Speed
MDE is a strategy to utilize
Abstraction – Simulation – Automation to facilitate sw-development and test
Note also: Next step is
agile!
Note also: Next step is
agile!
Forbes.com Note:
Graphics is not the key!
Note: Graphics is
not the key!
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Implementation
Archi-tecture
Source
Model
Running
Code
• SW abstraction using Simulink
• Simulation using an executable environment
• Automation of code generation and integration
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Specification
Archi-tecture
Source
Model
Running
Code • System design abstraction
• Source model automation (prepare models)
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Integration
Archi-tecture
Source
Model
Running
Code • HIL (test rig) test using
environment simulation
• Automation of regression test and data feedback
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Agile MDE:
Agile development of car features
Agile development of taylormade MDE framework
Continuous integration
(automated)
Still no free lunch…
Still no free lunch…
Seamless with MDE framework!
Seamless with MDE framework!
Fast feedback! Fast feedback!
Progress can be measured Progress can be measured
Dspace.com
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Problem zones!!
Architecture Running code Architecture models
Requirements
Executable sw models
Executable boundary models
Test (“HIL”) Test (“MIL”)
Both transformations shall follow AUTOSAR (standard)
Several(!) not in-house parts of these transformations cause trouble
Req. models, Formal verification
Source
1 function ~ 1 pizza team … belongs to (hw-) domain group
… which belongs to department, etc.
Agile MDE requires fast loops!
1h 4 months
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For agile MDE external organizations are both
risk
business
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The CPU load
• Quality of generated code is no longer a problem
• Quality and efficiency of AUTOSAR system software is a serious problem
Running code Limping code
• Complicated and undeveloped AUTOSAR meta model. • Non robust interfaces & services. • “Basic SW” (system) modules can be faster? Or?
Mentor.com
Here we are
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Wishlist
MDE for embedded software:
1. Hide the complexity behind tight APIs (like in web development)
2. Hide the model transformations (like html to browser)
• Better and open-source tools
• kill-your-darlings standards!