Faster Development Through Modeling

1
Faster DevelopmentThrough Modeling

• Free tools meet MDA
• Jeff Cahoon
• Principal for CubeModel
• September 27th, 2006

2
The CWM is Very Useful

• Makes tools interoperable
• Useful beyond the scope of tools
• Useful beyond the scope of data warehousing

3
The Key to Speeding DevelopmentREUSE

• Kinds of Reuse
• Internal to an application
• Significant speed improvement
• Across Applications
• Extreme speed improvement
• Not Data Warehouse Specific
• Not all applications fit
• Repetitive structure important

4
Application Generation
5
Development Tasks
6
Tools Required

• mofEditor
• http//www.fing.edu.uy/inco/ens/aplicaciones/MofPl
  aza/web/mofplaza/mofeditor.htm
• NetBeans MDR
• http//mdr.netbeans.org
• XMI Diff/XSLT
• Example at http//www.cubemodel.com

7
MofEditor

• Creates models readable by both Humans and
  Machines
• Allows Modeling with any MOF Metamodel
• Provides Objects of the Right Context
• Only allows Sensible Associations
• Still an early release

8
NetBeans MDR

• Imports XMI models from other tools
• MofEditor
• Oracle Warehouse Builder
• Provides JMI interface to the model
• Very powerful and flexible interface
• Provides Browser for checking model
• Much to be discovered using this tool

9
XMI Diff/XSLT tools

• XMI Diff/XSLT are needed for joining models
  created in different tools.
• Object Ids change in XMI every time the model is
  changed. Associating objects by Id becomes a
  problem.
• XMI Diff supports relative refs, but the tools do
  not.
• The solution is not complicated.

10
Benefits Besides Faster Development

• Fewer typos with generated code
• Small model changes are easy
• Some people think better graphically
• The code matches the model
• Modeling is easier in the right context
• Potential for surviving platform changes

11
Interesting Questions

• How do I get reuse where tasks are not identical?
• Does reuse mean that the code will be
  inefficient?
• How do I make changes once the application is
  deployed?
• Your question goes here.

• ?

12
Model Silo Problem
13
Conclusions

• CWM is useful beyond tools and data warehouses
• Free tools are available today to do everything
  you need
• Model driven application development is often
  faster