With Cloud Expo 2012 New York (10th Cloud Expo) now under four months away, what better time to start introducing you in greater detail to the distinguished individuals in our incredible Speaker Faculty for the technical and strategy sessions at the conference...
We have technical and strategy sessions for you every day from June 11 through June 14 dealing with every nook and cranny of Cloud Computing and Big Data, but what of those who are presenting? Who are they, where do they work, what e...| By Holger Knublauch | Article Rating: |
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| January 17, 2008 10:00 AM EST | Reads: |
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Holger Knublauch's Blog
Rich Internet Applications (RIAs) run inside web browsers and provide a much more dynamic user experience than conventional web pages. While traditional HTML-based pages require a full reload of the page when the user clicks on a link, many modern web pages only reload parts of the page and provide animations to dynamically navigate through an information space.
There are several platforms to implement such dynamic web pages, for example AJAX, Flash, Java FX, Microsoft Silverlight, OpenLaszlo, XUL. These platform all share a similar programming model that mixes declarative (XML) elements to describe the layout of user interfaces with some imperative scripting to define the application's behavior.
For our newest Semantic Web tooling platform TopBraid Live we had to pick one of these technologies. The goal of TopBraid Live is to serve as development platform for Rich Internet Applications based on server-side Semantic Web models. TopBraid Live provides the whole server-side infrastructure to store and query RDF/OWL data, and a comprehensive client-side API including a library of out-of-the-box components that make creating web applications easier.
After evaluating AJAX and OpenLaszlo for a while we have finally chosen Flash, in particular Flex 2 and ActionScript 3 as the primary foundation for the client-side API of TopBraid Live. In our experience, Flex is the best available technology that is widely deployed and comes with all the flexibility that one would expect for true Rich Internet Applications. In particular we appreciate the nice object-oriented model and strong typing that makes ActionScript 3 code as maintainable as Java or C# code - unlike JavaScript with all its browser incompatibilities and ad-hoc constructs.
In August 2007 we announced the first comprehensive Semantic Web API for Flash. The TopBraid Live API provides a comparable data model to Java libraries such as Jena and Sesame. The triples and nodes in the data model are automatically synchronized with the server in a highly scalable architecture. Data is loaded as the user browses through the Semantic Web model, and triples and nodes are cached on the client, avoiding to continuously reloading everything. We provide some abstraction layers to run queries to back user interface components. Many UI widgets such as trees, tables, forms and graphical browsers come out-of-the-box as part of TopBraid Live.
The screenshot below shows TopBraid Ensemble, a multi-user Semantic Web browser and editor/wiki based on TopBraid Live:

In order to use TopBraid Ensemble, you need a TopBraid Live server to manage your RDF/OWL data stores (in whatever format you chose). You can configure which models are visible (and editable) by which users. The users can then log in and either navigate through the model or edit parts of it. The tool also provides search capabilities and even a graphical browser.
I believe that these capabilities and the smooth integration with TopBraid Composer as a professional development tool will make TopBraid Live one of the primary Rich Semantic Web Application platforms on the market.
This post appeared originally here. Republished in full here by kind permission of the author.
Published January 17, 2008 Reads 26,413
Copyright © 2008 SYS-CON Media, Inc. — All Rights Reserved.
Syndicated stories and blog feeds, all rights reserved by the author.
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More Stories By Holger Knublauch
Holger Knublauch is a Computer Scientist developing tools and methods for the construction of domain models and Semantic Web content. He currently serves as Vice President for TopQuadrant where he is responsible for product development. Previously he was a Research Fellow at Stanford Medical Informatics and the University of Manchester where he developed the original Protégé-OWL (http://protege.stanford.edu/).
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2011 was a year of rapid adoption for public and private cloud services. Instant and on-demand server provisioning was the driving force behind the massive growth. On top, cloud server templates and script automation simplified application installation for simple and pre-defined application stacks, but have not targeted more complex enterprise application environments.
In his session at the 10th International Cloud Expo, John Yung, CEO of Appcara, will discuss how 2012 will be the year for app...
"Having been in the IT field for many years, I believe the cloud computing chapter in the industry is an exciting one and I am proud to be a part of it," said National Reconaissance Office (NRO) Chief Information Officer Jill T. Singer Tuesday, as it was announced that she was one of 10 winners of the 2012 CloudNOW "Top Ten Women in Cloud" Awards.
As more enterprises are adopting clouds, the nature of cloud computing is changing. Previously, clouds were used to test applications or for non-mission critical applications. Today, enterprises are using clouds for cost-saving advantages and launching more mission critical applications that have defined performance needs.
In his session at the 10th International Cloud Expo, Eric Shepcaro, CEO and Chairman of the Board of Telx, will discuss how distributed computing has many advantages. It wou...
With Cloud Expo 2012 New York (10th Cloud Expo) just four months away, what better time to start introducing you in greater detail to the distinguished individuals in our incredible Speaker Faculty for the technical and strategy sessions at the conference...
We have technical and strategy sessions for you every day from June 11 through June 14 dealing with every nook and cranny of Cloud Computing and Big Data, but what of those who are presenting? Who are they, where do they work, what else h...
Building a cloud computing environment with on-demand access to compute, network, and storage resources requires an elastic infrastructure at multiple levels. Virtualization combined with x86 servers has transformed the way we scale out compute resources. Unfortunately, legacy Fibre Channel and iSCSI storage architectures are rooted in rigid mainframe-era designs, and are fundamentally mismatched with the dynamic, shared modern data center.
In his session at the 10th International Cloud Expo, ...
With Cloud Expo 2012 New York (10th Cloud Expo) now under four months away, what better time to start introducing you in greater detail to the distinguished individuals in our incredible Speaker Faculty for the technical and strategy sessions at the conference...
We have technical and strategy sessions for you every day from June 11 through June 14 dealing with every nook and cranny of Cloud Computing and Big Data, but what of those who are presenting? Who are they, where do they work, what e...
With Big Data Expo 2012 New York (co-located with 10th Cloud Expo) now under four months away, what better time to start introducing you in greater detail to the distinguished individuals in our incredible Speaker Faculty for the technical and strategy sessions at the conference...
We have technical and strategy sessions for you every day from June 11 through June 14 dealing with every nook and cranny of Cloud Computing and Big Data, but what of those who are presenting? Who are they, where ...
With Big Data Expo 2012 New York (co-located with 10th Cloud Expo) just four months away, what better time to start introducing you in greater detail to the distinguished individuals in our incredible Speaker Faculty for the technical and strategy sessions at the conference...
Can you bring services from the cloud to your customers faster and have them adopt it with ease of use or bring the power of bundled services to the fingertips of your clients without creating new rigid ‘apps stove pipes'? Do you want to prevent your business running away to public and unmanageably immature cloud services?
In his session at the 10th International Cloud Expo, Hans van de Koppel, Sr. Enterprise Architect at Capgemini, will take Cloud Expo delegates to the developing world of clou...
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