Improve quality, productivity and alignment with mdd

Improve quality, productivity and alignment with MDD
Johan den Haan – Head R&D Mendix
@JohanDenHaan

The solution?

Structure presentation
Model-Driven Development (MDD)
Demo – basic application
TheMendix Model-Driven SOBA platform
Proposition
Architecture
Modeling languages
Modeling vs. Programming
Demo – App Store andcustom code

Model Driven Development (MDD)
‘Traditional’ software development
Programmer (“technical expert”)
Programs code
Models the structure (“how”)
Domain expert (“business analyst”)
Domain models
Models the function (“what”)

WhyMDD?
Productivity
Business-IT alignment
Communication
Involve domain experts
Fast iterations
Quality
Best-practice patterns
Engine builds further on knowledge of previous projects
The best specialists work on the engine

MDD evolution
Model Driven Software Development:
model
model
model
model
engine
code
code
code
code
code visualization
roundtrip engineering
code generation
model only
code only

Whymodel execution?
Model is the code, no transformations
Debug model at runtime (inspect, step)
Deployment is easier
Domain expert is part of the development team
Bring Software development to the next level of abstraction

Now in practice…

Demo
Basis application
Customer management
Orders
Workflow orders

Customers

Partners & Awards
Implementation
Technology
Awards

Mendix proposition
High
Model-driven (SOBA) development
(Mendix)
4GL tools
Ease & speed of
development
SOA Platforms
Custom (offshore) development
High
Low
Flexibility & interoperability

Mendix SOBA
Business functionality
Flows
& Rules
Domain model
Java
Security
Forms
360˚ integration
Webservices, XML, Office, SAP, etc.

Mendix platform architecture

Modelleertalen
Domain-Specific Languages (DSL)

Mendix Business Modeler - Microflow DSL

Mendix Business Modeler - Business rule DSL
From Process Design to Process Automation - Johan den Haan

Mendix Business Modeler - Mapping

The law of leaky abstractions

ModelingvsProgramming
Java actions in model
Context, input, output in model
“fill out” actions with Java
Example actions
Integration with legacy systems
(re)usable libraries
Why?
DSLs remain specific
No lock-in

Marketplace: widgets, modules, plugins, etc.

Demo
App Store
Theme
Widget
Module
Custom Java

Conclusion
MDD is a must
Productivity
Business-IT alignment
Quality
model execution is needed for taking full advantage of MDD
Mendix Model-Driven SOBA platform
Model execution
DSLs
Marketplace
Fast, flexible, future-proof

Thank you!
Learn more: world.mendix.com
Read more: www.theenterprisearchitect.eu
Twitter: @JohanDenHaan

Improve quality, productivity and alignment with mdd

by Mendix on Jun 02, 2010

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