Wiki source code of Architecture and Concepts
Version 4.1 by Pierre Dubois on 2011/10/03 21:39
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| 1 | = The REQUEA Platform = |
| 2 | |
| 3 | The REQUEA Platform is a component that is typically installed in a standard web application server (J2EE such as Tomcat, JBoss, OracleAS, JonAs) and provides: |
| 4 | |
| 5 | * An OSGi architecture within the web application for modularity and extensibility of the platform |
| 6 | * An document based model architecture (MDA) for creating document based application where the data manipulated is easily and effitiently stored in a database (such as Oracle, MySQL, Microsoft SQL Server). |
| 7 | * A web user interface that is optimized for speed, ergonomics and complex interactivity with the user. |
| 8 | |
| 9 | = Platform services = |
| 10 | |
| 11 | The platform runs on top of standard J2EE application server and uses J2EE services provided by the environment (such as Servlets, JDBC, ...). |
| 12 | |
| 13 | The platform provides the following services: |
| 14 | |
| 15 | * database storage persistence service |
| 16 | * application business rules |
| 17 | * user interface service |
| 18 | * import / export services |
| 19 | * WebServices interfaces (SOAP) |
| 20 | * Java Content Repository interface |
| 21 | * Workflow services |
| 22 | * Reporting services (JasperReports integration) |
| 23 | * Graphs and Statistics services |
| 24 | |
| 25 | All those base services are provided as OSGi services (packaged in bundles) |
| 26 | |
| 27 | On top of those base services, we find the applications that are also OSGi bundles: |
| 28 | |
| 29 | * Core applications, such as security and user definitions |
| 30 | * Standard applications, such as calendar, events, resources and catalog management |
| 31 | * Applications such as ITIL incident management |
| 32 | * Customer Specific applications where customer specific code may be created |
| 33 | * Customer customization where changes in labels, workflows, ... for a specific implementation can be added. |
| 34 | |
| 35 | [[image:architecture.png]] |
| 36 | |
| 37 | See a general architecture presentation: |
| 38 | [[General Architecture Presentation>>attach:architecture-general.pdf]] |
| 39 | |
| 40 | = Applications and Bundles = |
| 41 | |
| 42 | Applications are packaged in OSGi bundles (see bundles: [[Bundles>>Bundles]]) that can be deployed on a modular fashion. This provides flexibility and modularity to the platform. |