Welcome!

Machine Learning Authors: Elizabeth White, Yeshim Deniz, Pat Romanski, Rene Buest, Nate Vickery

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
21st International Cloud Expo, taking place October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Me...
SYS-CON Events announced today that DXWorldExpo has been named “Global 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. Digital Transformation is the key issue driving the global enterprise IT business. Digital Transformation is most prominent among Global 2000 enterprises and government institutions.
SYS-CON Events announced today that Datera, that offers a radically new data management architecture, 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. Datera is transforming the traditional datacenter model through modern cloud simplicity. The technology industry is at another major inflection point. The rise of mobile, the Internet of Things, data storage and Big...
Kubernetes is an open source system for automating deployment, scaling, and management of containerized applications. Kubernetes was originally built by Google, leveraging years of experience with managing container workloads, and is now a Cloud Native Compute Foundation (CNCF) project. Kubernetes has been widely adopted by the community, supported on all major public and private cloud providers, and is gaining rapid adoption in enterprises. However, Kubernetes may seem intimidating and complex ...
SYS-CON Events announced today that Calligo, an innovative cloud service provider offering mid-sized companies the highest levels of data privacy and security, has been named "Bronze 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. Calligo offers unparalleled application performance guarantees, commercial flexibility and a personalised support service from its globally located cloud plat...
"We focus on SAP workloads because they are among the most powerful but somewhat challenging workloads out there to take into public cloud," explained Swen Conrad, CEO of Ocean9, Inc., in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"Outscale was founded in 2010, is based in France, is a strategic partner to Dassault Systémes and has done quite a bit of work with divisions of Dassault," explained Jackie Funk, Digital Marketing exec at Outscale, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"We are still a relatively small software house and we are focusing on certain industries like FinTech, med tech, energy and utilities. We help our customers with their digital transformation," noted Piotr Stawinski, Founder and CEO of EARP Integration, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"I think DevOps is now a rambunctious teenager – it’s starting to get a mind of its own, wanting to get its own things but it still needs some adult supervision," explained Thomas Hooker, VP of marketing at CollabNet, in this SYS-CON.tv interview at DevOps Summit at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"We've been engaging with a lot of customers including Panasonic, we've been involved with Cisco and now we're working with the U.S. government - the Department of Homeland Security," explained Peter Jung, Chief Product Officer at Pulzze Systems, in this SYS-CON.tv interview at @ThingsExpo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"We're here to tell the world about our cloud-scale infrastructure that we have at Juniper combined with the world-class security that we put into the cloud," explained Lisa Guess, VP of Systems Engineering at Juniper Networks, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
There is a huge demand for responsive, real-time mobile and web experiences, but current architectural patterns do not easily accommodate applications that respond to events in real time. Common solutions using message queues or HTTP long-polling quickly lead to resiliency, scalability and development velocity challenges. In his session at 21st Cloud Expo, Ryland Degnan, a Senior Software Engineer on the Netflix Edge Platform team, will discuss how by leveraging a reactive stream-based protocol,...
"With Digital Experience Monitoring what used to be a simple visit to a web page has exploded into app on phones, data from social media feeds, competitive benchmarking - these are all components that are only available because of some type of digital asset," explained Leo Vasiliou, Director of Web Performance Engineering at Catchpoint Systems, in this SYS-CON.tv interview at DevOps Summit at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
Your homes and cars can be automated and self-serviced. Why can't your storage? From simply asking questions to analyze and troubleshoot your infrastructure, to provisioning storage with snapshots, recovery and replication, your wildest sci-fi dream has come true. In his session at @DevOpsSummit at 20th Cloud Expo, Dan Florea, Director of Product Management at Tintri, provided a ChatOps demo where you can talk to your storage and manage it from anywhere, through Slack and similar services with...
"We want to show that our solution is far less expensive with a much better total cost of ownership so we announced several key features. One is called geo-distributed erasure coding, another is support for KVM and we introduced a new capability called Multi-Part," explained Tim Desai, Senior Product Marketing Manager at Hitachi Data Systems, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"I'm here to leverage my secret sauce, which is using outsourced development and the company that I utilize is delaPlex Software and they've basically allowed me to win Fortune 500 companies," noted Justin Witz, CTO of FRA and PlanTools, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"As we've gone out into the public cloud we've seen that over time we may have lost a few things - we've lost control, we've given up cost to a certain extent, and then security, flexibility," explained Steve Conner, VP of Sales at Cloudistics,in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
"We are an IT services solution provider and we sell software to support those solutions. Our focus and key areas are around security, enterprise monitoring, and continuous delivery optimization," noted John Balsavage, President of A&I Solutions, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.
As enterprise cloud becomes the norm, businesses and government programs must address compounded regulatory compliance related to data privacy and information protection. The most recent, Controlled Unclassified Information and the EU’s GDPR have board level implications and companies still struggle with demonstrating due diligence. Developers and DevOps leaders, as part of the pre-planning process and the associated supply chain, could benefit from updating their code libraries and design by in...
"Peak 10 is a hybrid infrastructure provider across the nation. We are in the thick of things when it comes to hybrid IT," explained Michael Fuhrman, Chief Technology Officer at Peak 10, in this SYS-CON.tv interview at 20th Cloud Expo, held June 6-8, 2017, at the Javits Center in New York City, NY.