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From Paul Brown <paulrbr...@gmail.com>
Subject Re: GSOC project ideas
Date Thu, 12 Mar 2009 18:00:36 GMT

Hi, Gero --

I thought it was an excellent idea both times you sent it. :)

Any thought to using canvas in place of the SVG?  My initial  
experiments with it (non-Ode-related) have shown better performance  
and uniformity between browsers (FF/Safari).

Best.

-- Paul

On Mar 12, 2009, at 9:44 AM, Decker, Gero wrote:

> Hi everyone,
>
> we are developing an open source process modeling tool that runs in  
> the web browser. You might have already heard about the Oryx project  
> (http://bpt.hpi.uni-potsdam.de/Oryx for users and http://code.google.com/p/oryx-editor/

>  for developers). It specifically supports BPMN 1.2 and other  
> process modeling languages. Just check out our online installation.
>
> I think Oryx could be the perfect frontend for graphical BPEL  
> debugging. Recently, we have implemented two components that should  
> make it quite easy to integrate with Apache ODE:
> - There is a mashup-API that is very similar to Google's Maps API:  
> It provides a read-only view for process models and allows to easily  
> visualize additional information on top of it. E.g. you can add  
> speech bubbles to elements in the model, in turn containing e.g.  
> HTML divs. We have used this API already to integrate with a number  
> of other systems (such as ticket management systems and BPM  
> engines). Checkout examples at http://bpt.hpi.uni-potsdam.de/Oryx/ 
> MOVI.
> - We have implemented a BPEL-2-BPMN transformator that visualizes  
> BPEL processes using BPMN. The generated BPMN diagram is then  
> layouted automatically. For details please check out our academic  
> paper at http://bpt.hpi.uni-potsdam.de/pub/Public/GeroDecker/coopis2008-bpel2bpmn.pdf

> .
>
> Oryx is developed under MIT license. The server component is  
> developed in Java, the client-side code is JavaScript. Rendering  
> happens through SVG (in the editing mode) and PNG in the read-only  
> mashup-mode.
>
> The final setup with Apache ODE could look as follows: A slim Oryx- 
> war is deployed in addition to the Apache ODE server, allowing for  
> the BPEL-2-BPMN transformation, the PNG-generation and the delivery  
> of the JavaScript-code to the browser. The debugging-mashup comes on  
> top, accessing the corresponding ODE-APIs and visualizing it using  
> the Oryx-functionality.
>
> As an idea for the future, one could also think about using Oryx as  
> configuration frontend for BPEL processes. We have implemented  
> BPMN-2-BPEL transformations which could serve as basis for this.
>
> We would be very happy to contribute as mentors in a joint Google  
> Summer of Code project.
>
> What do you think?
>
> Cheers,
> Gero


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