Welcome!

Machine Learning Authors: Pat Romanski, Ed Featherston, Elizabeth White, Liz McMillan, Progress Blog

Related Topics: Java IoT, Adobe Flex, Machine Learning , Agile Computing, Release Management , Apache

Java IoT: Article

RIA Load Testing for Dummies

RIAs represent the next step toward a more interactive, efficient, and easy-to-use web

We all know that since the early ‘90s, Internet usage has exploded. Buying online, booking a trip or communicating with friends and relatives are just a few examples of what all of us are doing every day. The continuous development of broadband connectivity has also made easy the growth of those services and, as more bandwidth becomes available, quality will continued to improve as well. Considering this evolution and looking at the details of its capabilities, it appears Rich Internet Applications are one of the most important elements to improve the user experience in the modern Internet era.

From HTML to RIA
First let's explore how we got to where we are today by looking at the major steps in the development of the Internet.

Back in the ‘90s, HTML came out and was quickly established as the main markup language for web pages. HTML allows images and objects to be embedded and can be used to create interactive forms. You can create structured documents through a defined semantic model, but essentially HTML was designed to deliver static content. This was the birth of the web as we know it today.

For about 10 years HTML ruled the Internet world. 2002 saw the release of the first .NET Framework version. This platform allowed the creation of professional apps for business, linking back-end information and user rendering. It also appeared to be more efficient than HTML for business processes and the industry progressively adopted this way of thinking. In the meantime, JavaScript, ActiveX and applets arrived on the web market. They allowed the addition of even more functionality on the client side. That said, it was more a revolution of the style instead of the content. In fact JavaScript keeps the same approach as HTML as it's still a sequential model, meaning the server provides information only if the client asks for it. But this approach is no longer sufficient. Applications have continued to grow in terms of complexity as users are enabled to create more and more interactions.

In 2004 "Web 2.0" was used for the first time by Tim O'Reilly. This term describes an evolution of the web toward greater simplicity and interactivity and technically speaking, it brings on the front of Rich Internet Applications (RIAs).

RIAs today are the latest evolution of the web. Following HTML and .NET, RIAs now enable more dynamic and interactive applications, more intuitive UIs, and data availability at any time through real time communication.

RIA: Technologies and Advantages
One of the most significant impacts of RIAs is that now a lot of the actions are computed on the client side. JavaScript language, in particular, has been specifically created for such a purpose. As a result, RIAs enable many new capabilities and features for users, which would have been impossible with HTML alone. Today most of the RIA UIs embed drag-and-drop, dedicated tool bars, calculations, and more.

Although there are now a number of RIA technologies available, JavaScript appears to be the first language able to execute code on the client side. AJAX (a combination of JavaScript and XML) is a popular derivation of the original JavaScript. Several frameworks also exist, among the most well-known: Dojo, jQuery, Scriptaculous... Adobe also created its own solution based on Flash: Flex. Microsoft created Silverlight and Google assembled GWT (Google Web Toolkit).

The advantages of RIAs are numerous and include:

  • RIA Frameworks enable faster releases.
  • No installation on the client side is necessary.
  • Users can use the application from anywhere and from any computer, as long as it has Internet and a web browser.
  • It's easier to maintain for administrators. Changes are done once and everybody can connect back to the application.

Real-Time Information: Push
Earlier we talked about the greater complexity of the users interactions. RIAs and push seem to be able to help here. Push is a way to communicate between client and server, the dialog being initiated by the server and not the client. It's the opposite of what we are used to seeing in earlier web applications in which the user first sends a request to obtain a response from the server. This new way of exchanging information gives Web Apps a new dimension. Without any specific action, users can follow their usual flow and simultaneously get alerts about events they defined themselves. This communication mode is widely used in banking and trading apps where responsiveness is not merely important, but critical.

Adoption by the Industry
A survey by Service-now.com in 2010 about web CRM adoption showed that 81% said that they were currently using a web CRM instead of a desktop app, and an additional 12% were considering replacing desktop CRM with a web app. This survey pinpointed the fact that RIAs were not only a part of our web environment, but tended to be viewed as the standard in the industry.

In becoming an industry standard, web application technologies must also be subject to improvements in optimization and reliability. Like standard websites, RIAs must ensure sufficient performances to satisfy users. Web load testing has been in existence for about 20 years and brings valuable information and benefits to testers. Primarily it helps by improving the quality of websites. But what about load testing RIAs? Is it the same activity and do the tools remain the same?

Load-Testing RIAs: The Tools
To answer this last question - yes tools are pretty much still the same in terms of the information they can provide. But tool vendors must keep up with the latest technologies in order to meet the needs of RIAs. We said that an RIA is much more interactive than any website. Technically speaking, this means a large flow of requests and responses are generated, much more than for a typical website. Technologies like Push and Streaming can create hundreds of requests, whereas the user might have only executed three clicks. New complex behaviors are the consequence of the RIAs and therefore load testing tools must follow this trend by being more responsive to the needs of emerging technologies.

If tool vendors really want to answer RIA needs, their tools have to integrate automatic recognition of RIA frameworks. They must enable testers to rapidly create business case transactions. The new tool must be intuitive, RIA ready but without ignoring the existence of conventional HTTP websites.

Conclusion
RIAs represent the next step toward a more interactive, efficient, and easy-to-use web. They are becoming a standard for the industry and therefore must be optimized to ensure good performance for the users. Load testing is essential to effectively optimize the performance of these new technologies. Because of the change in how RIAs handle client / server interactions, special consideration must be given to testing methodology and tooling. The RIA trend is now fully upon us. Are you ready?

More Stories By Olivier Hanoun

Olivier Hanoun is a Senior Performance Engineer at Neotys, a provider of load testing software for Web applications. Previously, he worked as a Technical Marketing Manager in a semi-conductor Taiwanese company. Prior to that he was an engineer in STMicroelectronics. Being in Neotys from the early development of the company, 5 years ago, Olivier has been involved in load and performance testing projects as well as delivering professional services and trainings. He is also involved in pre-sales and marketing activities. He graduated from the “Ecole Centrale de Marseille” with an MS in Computer and Sciences, and from the French Air Force Academy with an MS in Mechanic and Aeronautic.

Comments (0)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


@CloudExpo Stories
SYS-CON Events announced today that N3N will exhibit at SYS-CON's @ThingsExpo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. N3N’s solutions increase the effectiveness of operations and control centers, increase the value of IoT investments, and facilitate real-time operational decision making. N3N enables operations teams with a four dimensional digital “big board” that consolidates real-time live video feeds alongside IoT sensor data a...
Internet of @ThingsExpo, taking place October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 21st Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago. All major researchers estimate there will be tens of billions devic...
Mobile device usage has increased exponentially during the past several years, as consumers rely on handhelds for everything from news and weather to banking and purchases. What can we expect in the next few years? The way in which we interact with our devices will fundamentally change, as businesses leverage Artificial Intelligence. We already see this taking shape as businesses leverage AI for cost savings and customer responsiveness. This trend will continue, as AI is used for more sophistica...
SYS-CON Events announced today that SourceForge has been named “Media Sponsor” of SYS-CON's 21st International Cloud Expo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. SourceForge is the largest, most trusted destination for Open Source Software development, collaboration, discovery and download on the web serving over 32 million viewers, 150 million downloads and over 460,000 active development projects each and every month.
Today most companies are adopting or evaluating container technology - Docker in particular - to speed up application deployment, drive down cost, ease management and make application delivery more flexible overall. As with most new architectures, this dream takes significant work to become a reality. Even when you do get your application componentized enough and packaged properly, there are still challenges for DevOps teams to making the shift to continuous delivery and achieving that reducti...
Today traditional IT approaches leverage well-architected compute/networking domains to control what applications can access what data, and how. DevOps includes rapid application development/deployment leveraging concepts like containerization, third-party sourced applications and databases. Such applications need access to production data for its test and iteration cycles. Data Security? That sounds like a roadblock to DevOps vs. protecting the crown jewels to those in IT.
SYS-CON Events announced today that Interface Corporation will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Interface Corporation is a company developing, manufacturing and marketing high quality and wide variety of industrial computers and interface modules such as PCIs and PCI express. For more information, visit http://www.i...
SYS-CON Events announced today that mruby Forum will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. mruby is the lightweight implementation of the Ruby language. We introduce mruby and the mruby IoT framework that enhances development productivity. For more information, visit http://forum.mruby.org/.
In his session at @ThingsExpo, Greg Gorman is the Director, IoT Developer Ecosystem, Watson IoT, will provide a short tutorial on Node-RED, a Node.js-based programming tool for wiring together hardware devices, APIs and online services in new and interesting ways. It provides a browser-based editor that makes it easy to wire together flows using a wide range of nodes in the palette that can be deployed to its runtime in a single-click. There is a large library of contributed nodes that help so...
What is the best strategy for selecting the right offshore company for your business? In his session at 21st Cloud Expo, Alan Winters, U.S. Head of Business Development at MobiDev, will discuss the things to look for - positive and negative - in evaluating your options. He will also discuss how to maximize productivity with your offshore developers. Before you start your search, clearly understand your business needs and how that impacts software choices.
IBM helps FinTechs and financial services companies build and monetize cognitive-enabled financial services apps quickly and at scale. Hosted on IBM Bluemix, IBM’s platform builds in customer insights, regulatory compliance analytics and security to help reduce development time and testing. In his session at 21st Cloud Expo, Lennart Frantzell, a Developer Advocate with IBM, will discuss how these tools simplify the time-consuming tasks of selection, mapping and data integration, allowing devel...
SYS-CON Events announced today that Cedexis will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Cedexis is the leader in data-driven enterprise global traffic management. Whether optimizing traffic through datacenters, clouds, CDNs, or any combination, Cedexis solutions drive quality and cost-effectiveness.
SYS-CON Events announced today that Mobile Create USA will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Mobile Create USA Inc. is an MVNO-based business model that uses portable communication devices and cellular-based infrastructure in the development, sales, operation and mobile communications systems incorporating GPS capabi...
While some developers care passionately about how data centers and clouds are architected, for most, it is only the end result that matters. To the majority of companies, technology exists to solve a business problem, and only delivers value when it is solving that problem. 2017 brings the mainstream adoption of containers for production workloads. In his session at 21st Cloud Expo, Ben McCormack, VP of Operations at Evernote, will discuss how data centers of the future will be managed, how th...
Why Federal cloud? What is in Federal Clouds and integrations? This session will identify the process and the FedRAMP initiative. But is it sufficient? What is the remedy for keeping abreast of cutting-edge technology? In his session at 21st Cloud Expo, Rasananda Behera will examine the proposed solutions: Private or public or hybrid cloud Responsible governing bodies How can we accomplish?
SYS-CON Events announced today that MIRAI Inc. will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. MIRAI Inc. are IT consultants from the public sector whose mission is to solve social issues by technology and innovation and to create a meaningful future for people.
SYS-CON Events announced today that Keisoku Research Consultant Co. will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Keisoku Research Consultant, Co. offers research and consulting in a wide range of civil engineering-related fields from information construction to preservation of cultural properties. For more information, vi...
Most of the time there is a lot of work involved to move to the cloud, and most of that isn't really related to AWS or Azure or Google Cloud. Before we talk about public cloud vendors and DevOps tools, there are usually several technical and non-technical challenges that are connected to it and that every company needs to solve to move to the cloud. In his session at 21st Cloud Expo, Stefano Bellasio, CEO and founder of Cloud Academy Inc., will discuss what the tools, disciplines, and cultural...
SYS-CON Events announced today that Massive Networks, that helps your business operate seamlessly with fast, reliable, and secure internet and network solutions, has been named "Exhibitor" of SYS-CON's 21st International Cloud Expo ®, which will take place on Oct 31 - Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. As a premier telecommunications provider, Massive Networks is headquartered out of Louisville, Colorado. With years of experience under their belt, their team of...
SYS-CON Events announced today that Enroute Lab will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Enroute Lab is an industrial design, research and development company of unmanned robotic vehicle system. For more information, please visit http://elab.co.jp/.