Embed Size (px)
Citation preview
www.nexida.comwww.nexida.com
An MDA Approach to user interface
Claudio Rubbiani
June 2009
Thanks to …
Roberto Dalle Mura
You all!
In this session
User interface generation or execution through MDA
•Our experience in creating real world apps with a model
•The main user interface components “extracted”
•A model is possible & convenient
•Can our model be helpful to you and become a standard model?
Scope
Model to collect the information
Complete & Customize with standard programming tools
Templates, standard objects (tool)
+=
First release u.i.
Our experience
We can easily change it!
Q1: The starting point …
… market & customers!
Modeling tools
A1: Start from data!
1
2
Select the data structure
Complete the user interface information
DBWeb
Service(SOA)
Object model
UML Diagram
Extended model
Q2: Model or code?
The more you try to avoid coding the more …
•Your model will look like a programming tool
•Defining a model will take years
v
More functionalities supported …
•More benefits … (quality and time)
•More specific (internal) training for your development team
•High skills to manage the templates
Workflow, testing,security & authorization, platforms & devices indep., business logic, documentation, localization …
A2: Small steps
Incremental approach:
•Define a model that supports the main functionalities and a standard behavior
•Implement the model
•Test in real world apps to evaluate the results
Q3: The model’s format?•Domain Specific Language
•Class diagram & tagged values
•…
A3:Let’s decide together!
The model’s origin
•Productivity
•Quality
•Skill shortage
Study on real world apps•Starting from 2006 we analyzed over 100 ERP / departmental (data driven) apps (RPG, COBOL, VB4, VB6, Java, .NET, Ruby …)
•Extracted some common behaviors of the user interface
The model of the user int.
CRUDELSCreateReadUpdateDeleteExist (does not apply to u.i.)ListSearch
Empower SOA
Web Service 1
Web Service 2
Modeling tools
domain
The model at work on a real web application
+=
ASP.NET, C#, ORM, WCF, Ajax, Javascript, JQuery, MS Enterprise Libraries, Mono, mainframe compatib.
Sea
rch
DB
CustomersCustomerID (int)Name (text)LastOrder (date)OnLine (boolean)
X
X
X
Use it
From –
to
Yes/No
/All
X
X
Positi
on
3
1
2
Search criteriaFrom date: __/__/____To date : __/__/____OnLine : AllName : ______________
Extended model
List
List
(2)
Cre
ate
Re
ad
Up
da
te
Co
mb
o B
oX
•Does not impact the u.i. much …
•Unless you start with cascade deletes confirmed by user
De
lete
Conclusions
Modeling tools
Summarizing
DBWeb
Service(SOA)
Object model
UML Diagram
Extended model
Hard work & possible!
Excellent results
Always possible & highly recommended!
Is this helpful?
How to go on …Agile process!
- Continuous delivery of valuable model- Work together- Simplicity- Test model (templates and tool) on real world apps
Thank you again!
How to contact me:
Claudio Rubbiani
Tel: +39 059 460578Mobile: +39 348 7049610
[email protected] available soon
