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Frameworks

Agile Development Practices have widely been adopted in R&D Organizations. A core component is Continuous Integration where code changes are continuously integrated and tested to achieve the goal of having "potential shippable code" at the end of every Sprint/Iteration. In order to ve...
No matter what type of application we develop, coding validations is our everyday task. For years we have used a big variety of techniques and frameworks for validation with success. However, since some time we have a standard Java for validation, the Bean Validation specification (JSR...
2010 is over and there has been a lot going on in the application performance space. We started this project at the beginning of the year inspired by Stoyan Stefanov’s performance advent calendar of 2009. (There is also one for 2010). Now twelve months later we have our 2010 performan...
If you have no intention of adopting TOGAF then does it make any sense for you to understand how TOGAF recommends planning a project? I think the answer is yes if somebody can explain it in simple terms. Since TOGAF is flexible and it recommends many techniques which you might find use...
Silly question – or is it? How do you judge if a methodology can be classified as agile methodology? Can Iterative or Spiral development methodology be classified as agile? What about Six Sigma or Lean process? On what basis will decide will you decide? If you go by the Forrester class...
We are using Confluence for both our internal Wiki as well as for our external Community Portal. I just came across a very nasty performance bug in the version we are running on our external system. We run 3.2 and the User Search Feature keeps me waiting several minutes each time I sea...
Alois Reitbauer explained in detail how dynaTrace continuously monitors several thousand URLs and uploads the performance data to the public ShowSlow.com instance. More and more of our dynaTrace AJAX Community Members are taking advantage of this integration in their internal testing e...
In this edition of our WPO Use Case series I discuss another very important use case. Load Time Optimization is most likely the most vital use case from an end user perspective. At the same time it is also highly important from a business perspective as studies by ShopZilla or Google a...
Timed with our new product launch we also updated our corporate website. Not only did we update the content, we also applied some of the Best Practices that Alois and I have been talking about in the past 12 months. When we introduced the new Performance Report in dynaTrace AJAX Editio...
In the first and second articles of this series I discussed benchmarking and different approaches towards optimization of web application. As already mentioned in the last article, as soon as you get used to working with Key Performance Indicators you will want to automatically monitor...
In my last article I discussed benchmarking as the first use case for Web Performance Optimization (WPO). This time I will take a closer look at optimization. After we have discovered how our site behaves compared to our competition – or any reference we might want to benchmark agains...
Hybrid Flash multicasting is the second and decisive wave of innovation that will enable enterprises to stream video without overtaxing their network infrastructures. It eliminates the usual tradeoffs between video consumption and network investment, regardless of increased video traff...
Web Performance Optimization (WPO) constitutes of a set of activities targeted at improving the performance of web applications. First coined by Steve Souders WPO is developing into a growing industry. Every month new companies and projects offering web performance services emerge. WP...
In recent years there has been a growing interest in applying design patterns to various aspects of programming. One of the more well-known patterns is the Model-View-Controller pattern or MVC. This pattern has a great deal of appeal in the web design environment because it offers the ...
Load Testing has traditionally been done In-House with load-testing tools using machines in your test center to generate HTTP traffic against the application needing to be tested for high volume transactions. With agile development practices, shorter release cycles and higher number of...
In 2005, our company, ServusXchange LLC, was a fledgling SaaS information technology startup focused on business process and workflow collaboration solutions. Led by our co-founder, Brian Javeline, we identified an emerging opportunity, an unanswered need in the home remodeling and rep...
Inspired by the Top 10 Performance Problems post which focuses on Server-Side performance problems taken from companies such as Zappos, Thomson, Monster and Novell I came up with the Top 10 Client-Side performance problems in Web 2.0 applications I’ve seen when working with our dynaTr...
What factors make you think a web page is good or not? What keeps on that page longer than others? On the one hand it is the content on the page and whether this content is of interest to you. On the other it is the velocity with which you can navigate through the individual pages. Hig...
I occasionally get invited to do JavaScript/AJAX Performance Workshops. Last week I spent two days with a group of dynaTrace AJAX Users that work in a performance task force group within their R&D Organization. I asked them about the reasons for this Client-Side Performance Initiative...
An Oracle database provides several v$ views to query information about the database instance, including statistical information that can be used for monitoring and problem analysis purposes. Rene Nyffenegger wrote a nice Summary on Oracle’s v$ views that gives an overview of all avail...
JavaScript can save your day or it can cause you nightmares. JavaScript and XHR (XmlHttpRequest) enable what the industry considers to be Web 2.0 – meaning highly interactive web sites where some application logic is pushed down to the client into the browsers JavaScript engine. As wit...
The ZK framework provides a variety of paradigms to develop Web applications. One the one hand it is always nice to have options, but on the other this can cause un-intentional paradigm disparities when several developers are using the framework to develop an application without a cons...
With more than 3 million downloads, Selenium is the world’s most popular functional testing framework. It allows web developers and QA professionals to automatically test how an application functions on multiple browsers, such as Firefox, Internet Explorer and Chrome and across operati...
Our dynaTrace Community Portal is our gateway to our users. Especially with the rapidly-growing number of world-wide users of our FREE dynaTrace AJAX Edition, it is necessary to keep track on how well our pages perform from around the globe to satisfy our “performance hungry” community...
In his latest blog post, Steve Souders writes about the impact of performance on business success. I am not going to duplicate his content here as you can just go ahead and read his blog. I just want to highlight some very interesting points and give you some links to follow up resourc...
After my recent presentation at TSSJS – Performance Anti-Patterns in AJAX Applications - I got interesting feedback from one of the attendees: “The presentation was good but I thought you are talking more about actual problems with XHR/AJAX Requests”. I have to admit that I focused on ...
Oracle – which may or may not have broken the European Commission’s lock on its Sun acquisition – is now being sued for fraud and copyright infringement in California by a Georgia outfit called MB Technologies that claims Oracle is illegally using its Bindows technology for its Fusion ...
The .append() method is perhaps the most misused of all jQuery methods. While an extremely useful and easy method to work with, it dramatically affects the performance of your page. When misused, the .append() method can cripple your JavaScript code's performance. When used well, it'll...
During my RichFaces session at JBoss World 2009, I showed three small examples of using Ajax with RichFaces 3.3, JSF 2, and RichFaces 4. I thougth it would be a good idea to show you the difference or more correct the similarities between the three. I will be blogging more about Rich...
Even though it's considered bad practice, it's often handy to eval code in JavaScript. And in my case, it was simply necessary, since the JSF specification requires eval of scripts. And it's also necessary to execute those evaluated scripts in the global scope. It's not as easy as it ...
This is the third article of the Agile Chronicles series. We'll talk about utilizing branches for each developer in Subversion, Merge Day, and how while cool, it’s an ivory tower process.
Application servers, those dependable workhorses that run most enterprise Java applications, are rarely a hot topic of conversation these days. As a technology category, the application server appears to be fairly “established” and that the focus has moved elsewhere in the stack, but a...
When it comes to rich Internet application (RIA) technologies, application development professionals must choose between two paths: AJAX or Adobe. AJAX is the best bet for experienced Web development shops looking to incrementally evolve existing Web applications. Of course, selecting ...
First released in March 2004, the server-side component model introduced by JavaServer Faces (JSF) brought the promise of simplifying Web-user interface (UI) development. Then in February 2005, Jesse James Garrett coined the term AJAX (Asynchronous JavaScript and XML) and the simplicit...
AJAX is definitely taking Web applications to the next level in ease of use and desktop-like user interfaces. And it can even be used to create the secure, privacy-oriented Web applications that are so needed in today's Web world.
TIBCO Software unveiled TIBCO General Interface version 3.2, beta edition. TIBCO General Interface, which was rated as the best AJAX Rich Internet Application (RIA) toolkit by IDG's Infoworld this year, will provide developers with an open source licensing option and newly added functi...
Avectra Inc., a provider of 100 percent web-based association management software (AMS) solutions, unveiled netFORUM 2.12 at the annual American Society of Association Executives meeting in Boston. netFORUM 2.12 exploits the enhanced platform capabilities of Web 2.0, and delivers new l...
The team at ATTAP Technologies announced that it is previewing Jitsu, a new web-development framework. Jitsu is an open source user-interface toolkit that enables developers to build and deploy sophisticated user interfaces for web applications. Jitsu tools include an XML markup langua...
Telcontar announced the availability of a comprehensive application programming interface, which will allow developers to more easily develop and implement innovative mapping solutions. The API provides a new, open architecture for browser-based mapping and local search applications in...


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