The document discusses the development of a lightweight UML extension, WAE4x, which includes profiles for modeling the presentation tier of enterprise applications using JSF and ASP.NET MVC frameworks. It highlights the motivation for creating this extension due to the complexity of educational and enterprise applications and reports on its successful application in the ODaj2EE project, integrating role-based access control. Future work includes creating a platform-independent metamodel and exploring additional frameworks and features.

1. MDD Inclusion of Navigational,
Structural and RBAC Elements
for JSF and ASP.NET MVC
Frameworks in UML Models
Humberto Cortés & Antonio Navarro
Dpto. Ingeniería del Software e Inteligencia Artificial
Universidad Complutense de Madrid
Spain

2. Index
• Motivation
• WAE4x Metamodels
• UML WAE
• WAE4JSF
• WAE4.NET
• WAE4x Profiles
• WAE4JSF profile
• WAE4.NET profile
• OdAJ2EE Models
• Conclusions
• Future Work
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3. Motivation
• Educational applications are becoming complex enterprise
applications
• Enterprise Application (Fowler, 2002):
• Persistent data
• A lot of data
• Concurrent access to these data
• A lot of user interface screens
• Integration with other enterprise applications
• Conceptual dissonance within data
• Complex business logic and illogic
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4. Motivation
• Enterprise applications tiers:
• Client
• Presentation
• Business logic
• Integration
• Resource tier
• Oracle JSF (JavaServer Faces) and Microsoft ASP.NET MVC (Active
Server Pages.NET Model-View Controller) are enterprise frameworks
for the presentation tier
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5. Motivation
• Modelling approaches for the presentation tier:
• Modelling-oriented
• UML WAE (UML Web Application Extension) (Conallen, 1999)
• IFML (Interaction Flow Modeling Language) (OMG, 2014)
• RMM (Relationship Management Methodology)-based (Isakowitz, 1995)
• WebML (Web Modeling Language) (Ceri, Fraternali & Bongio, 2000)
• UWE (UML-based Web Engineering) (Hennicker & Koch, 2001)
• OOH4RIA (Object-Oriented Hypermedia 4RIA) (Meliá, Gómez, Pérez & Díaz, 2010)
• Low-code oriented
• Mendix
• OutSystems
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6. Motivation
• These approaches are right, but we wanted a simple UML extension able
to characterize the presentatior tier of enterprise applications
• WAE4x: WAE4JSF & WAE4.NET MVC
• Two lightweight profiles for the characterization of the presentation tier of
JSF/ASP.NET MVC applications
• In the rest of tiers plain UML can be used. Thus, any multitier and security
pattern can be used in UML designs
• Because our models are platform-specific models (PSMs), they can be directly
translated into code
• Role-Based Access Control (RBAC) supported
• This extension is used in the modelling of OdAJ2EE
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7. WAE4x Metamodels
UML WAE
• UML WAE defines nine main stereotypes
• Structural components
• client page
• server page
• form
• Navigational components
• link
• submit
• forward
• redirect
• Presentational components
• frameset
• target
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8. WAE4x Metamodels
UML WAE
• We have extended UML WAE with two new MOF metamodels that
have been translated into two new UML profiles
• WAE4JSF: 20 stereotypes
• WAE4.NET: 15 stereotypes
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9. WAE4x Metam.
WAE4JSF
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WAE4JSF MOF Metamodel

10. WAE4x Metam.
WAE4.NET
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WAE4.NET MOF Metamodel

11. WAE4X Profiles
WAE4JSF Profile
WAE4JSF concept UML stereotyped element WAE4JSF stereotype
JSF Classifier - -
JSF Server Page Class JSF Server Page
JSF Div Class JSF Div
JSF Form Class JSF Form
Outcome Class Outcome
target JSF Server Page from Outcome Directed association Access
Managed Bean Class Managed Bean
Action n/a n/a
Static Link Directed association Static Link
Dynamic Link Directed association Dynamic Link
Static Submit Directed association Static Submit
Dynamic Submit Directed association Dynamic Submit
Return Condition Directed association Return
Template Class Template
Template Component Class Template Component
JSF Server Page invoker of Template Directed association Use
Template has Template Component Directed association Include
Role Class Role
Has permission Directed association Has permission
UML-WAE Redirect Directed association Redirect
UML-WAE Forward Directed association Forward
Business Logic Class Business Service
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Representation of WAE4JSF MOF concepts with the WAE4JSF UML profile

12. WAE4X Profiles
WAE4.NET Profile
ASPX.NET concept UML stereotyped element ASPX.NET stereotype
ASPX Classifier - -
ASPX Server Page Class ASPX Sever Page
ASPX Div Class ASPX Div
ASPX Form Class ASPX Form
Controller Class Controller
Action Class Action
Action Link Directed association Action Link
Action Submit Directed association Action Submit
Return Condition Directed association Return
Master Page Class Master Page
Place Holder Class Place Holder
ASPX Server Page invoker of Master Page Directed association Use
Master Page has Place Holder Directed association Include
Role Class Role
Has permission Directed association Has permission
Business Logic Class Business Service
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Representation of WAE4.NET MOF concepts with the WAE4.NET UML profile

13. OdAJ2EE
• OdAJ2EE (Navarro et al. 2013):
• Online Learning Object Repository (LOR)
• Designed to define and manage Hybrid Learning Objects (HLOs)
• HLOs use metadata dynamically defined from domain-specific relational
databases
• A complex enterprise application
• JSF
• JAAS (Java Authentication and Authorization Service)
• JPA (Java Persistence API)
• About 100 JSF pages in the presentation tier
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14. OdAJ2EE
• Use case: new relational schema for metadata
• Template-based user interface
• Existent schemas are previously loaded
• A new schema is defined
• The new name is validated
• The use case ends with success of with a fail
• JAAS RBAC
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15. OdAJ2EE
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OdAJ2EE screenshot for schema creation (NewSchemaPage)

16. OdAJ2EE
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WAE4JSF model for new schema use case in OdAJ2EE

17. OdAJ2EE
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WAE4.NET model for new schema use case in OdAJ2EE

18. Conclusions
• Educational applications are becoming complex enterprise
applications
• UML4x:
• Lightweight UML WAE extension for JSF/ASP.NET MVC
• Any multitier and security pattern can be used
• Models are directly translatable into code
• RBAC Support
• Tested with OdaJ2EE
• JSF: component-based vs. ASP.NET MVC action-based
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19. Future Work
• Definition of a platform-independent metamodel that abstracts the
common elements present in WAE4x metamodels
• Technological movement from Borland Together to open source
frameworks
• Reverse engineering machinery
• WAE4x extension
• Other frameworks (e.g. Spring MVC)
• Other JSF/ASP.NET MVC features
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20. MDD Inclusion of Navigational,
Structural and RBAC Elements
for JSF and ASP.NET MVC
Frameworks in UML Models
Humberto Cortés & Antonio Navarro
Dpto. Ingeniería del Software e Inteligencia Artificial
Universidad Complutense de Madrid
Spain