Welcome!

Machine Learning Authors: Pat Romanski, Liz McMillan, Yeshim Deniz, Elizabeth White, Zakia Bouachraoui

Related Topics: Machine Learning

Machine Learning : Article

Prescribing AJAX: Panacea, Placebo, or Poison? Peeling the AJAX Onion

Mike Padilla will be speaking at AJAXWorld Conference & Expo 2008 East, March 18-20, 2008, in New York City

Ever since Jesse James Garrett coined the term AJAX to describe the collection of existing technologies that allow increased responsiveness and interactivity of webpages, its adoption has been embraced across the Web. But have designers and developers gone overboard? Is everything a nail to be pounded with the AJAX hammer? Some of the fundamental technologies that AJAX is based on, including HTML, CSS, and JavaScript, can sometimes offer simpler, more elegant solutions that are better suited to certain user experiences.
 
To optimally prescribe the use of AJAX, we need to understand the benefits and drawbacks, similarities and differences, and key interaction characteristics associated across the spectrum of static HTML to dynamic HTML to AJAX.
 
AJAX Ancestry
In the beginning, there were static webpages. Then along came dynamic HTML (DHTML), the combination of HTML, JavaScript and CSS. Webpages became more interactive and were able to change a small degree without requiring a page refresh. Yet the interaction was fundamentally constrained to the amount of data that could be reasonably pulled down to the client per page load. Finally, AJAX arrived and greatly increased the responsiveness and interactivity of webpages by asynchronously exchanging small streams of data with the server in the background in coordination with interactive DHTML.
 
Page level interaction was freed from the constraint of requiring a page reload to communicate with the server. But DHTML did not replace HTML and AJAX did not replace DHTML. Instead each technique represents a progressive collection of technologies that builds upon one another. More importantly, each technique, in of itself, with unique benefits and drawbacks, still offers suitable solutions for particular design problems.
 
Peeling the AJAX Onion
HTML is the core technology of the website presentation tier. As old as it is, it’s still the backbone of most everything that we see on the Web today. In of itself, HTML can be used to create static webpages that link to one another, automatically provide a page state model (easily bookmarked and shared, reside in the history object), are accessible, and are easily indexed by search engines. That’s all pretty powerful stuff that accomplishes most of what the Web is primarily used for – information retrieval.

More Stories By Mike Padilla

Mike Padilla is a user experience manager at Vanguard. He has led front-end development efforts for such companies as Fleet Credit Cards, Mellon Private Asset Management, The Bank of New York, Radian Guaranty, and Bessemer Trust. Macromedia has featured his usability designs. He received a B.S. in mechanical engineering, focusing on ergonomics, from Cornell University.
Padilla is an ardent advocate of high-fidelity prototyping during requirements development. In his spare time, he designed and developed Protonotes, a free AJAX web service that allows project team members to discuss system functionality, design, and requirements directly on prototypes with "sticky notes".

Comments (1)

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
Every organization is facing their own Digital Transformation as they attempt to stay ahead of the competition, or worse, just keep up. Each new opportunity, whether embracing machine learning, IoT, or a cloud migration, seems to bring new development, deployment, and management models. The results are more diverse and federated computing models than any time in our history.
On-premise or off, you have powerful tools available to maximize the value of your infrastructure and you demand more visibility and operational control. Fortunately, data center management tools keep a vigil on memory contestation, power, thermal consumption, server health, and utilization, allowing better control no matter your cloud's shape. In this session, learn how Intel software tools enable real-time monitoring and precise management to lower operational costs and optimize infrastructure for today even as you're forecasting for tomorrow.
"Calligo is a cloud service provider with data privacy at the heart of what we do. We are a typical Infrastructure as a Service cloud provider but it's been designed around data privacy," explained Julian Box, CEO and co-founder of Calligo, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
Isomorphic Software is the global leader in high-end, web-based business applications. We develop, market, and support the SmartClient & Smart GWT HTML5/Ajax platform, combining the productivity and performance of traditional desktop software with the simplicity and reach of the open web. With staff in 10 timezones, Isomorphic provides a global network of services related to our technology, with offerings ranging from turnkey application development to SLA-backed enterprise support. Leading global enterprises use Isomorphic technology to reduce costs and improve productivity, developing & deploying sophisticated business applications with unprecedented ease and simplicity.
While a hybrid cloud can ease that transition, designing and deploy that hybrid cloud still offers challenges for organizations concerned about lack of available cloud skillsets within their organization. Managed service providers offer a unique opportunity to fill those gaps and get organizations of all sizes on a hybrid cloud that meets their comfort level, while delivering enhanced benefits for cost, efficiency, agility, mobility, and elasticity.