You have built the attractive, brand-new website and it finally performs all you want it to and all the client wanted it to do. But when the client sees it he says he wants only some minor changes. All the client wants is just add to the website some more pizzazz. But this would include redesigning of the whole site; it will take 3 times longer than you have spent to add the new items. As a result it will absolutely destroy any profit that you have counted not only for this site but for the three following you have scheduled.
Now welcome to the outstanding as well as wacky world of Web design financial planning and Web design. The hearsay is that AJAX may work out all your problems at one stroke. But if the hearsay is true, the answer is yes. Here is an example. In case your client requires a set of pages to get tabs like one of the "minor" changes. Deployment of AJAX and for example the Yahoo AJAX User Interface, it is practically going to take longer to make copy of the existing content to the pages with tabs than it will take to carry out those new tabs.
The World of AJAX
Some real-world instances of AJAX Web pages may be seen at two popular Web sites: Ask.com and Google.Maps. On Ask.com just look at so far responsive the query box when you ask a question and on Google.Maps you may play about with a map and testing as well as dragging it, so left or right clicks will zoom in and out on the mapped area. You may then observe some AJAX magic through the drop-down box which appears suddenly on the main page of Google. It is evident because of the speed of the appearance of the items in the box that somewhat unusual occurring. Notice this when you type the items on the list change.
Every AJAX script always delivers a routine named XMLHttpRequest, it is the event handler that is at the centre of all ALAX-type code. In general, this routine is established to process every event as a function of "callback", that is inside of Windows programming and the routine that is well translated into other browsers and operating systems. That is why many appropriately built AJAX code inclined to be transportable through different browsers and operating systems.
Definition of AJAX
AJAX presents not a single technology but several technologies and everyone is flourishing in its own right which coming together in strong new ways. Ajax includes:
- Dynamic interaction and display deploying the Document Object Model
- Asynchronous data retrieval deploying XMLHttpRequest
- Standard-based presentation deploying CSS and XHTML
- Data manipulation and interchange deploying XML and XSLT
The classic web application model is functioning such way: majority user acts in the interface trigger a HTTP request backward to a web server. Then the server makes some processing – extracting data, talking to different legacy systems, crunching numbers and returns HTML page to the user. That is a model that is adapted from the original use of Web as a hypertext medium, but fans are aware of the Element of User Experience, that makes the Web great for hypertext does not certainly make it great for software applications.
On the left the right the Ajax modeland on the traditional model for web applications.
Unfortunately this approach doesn't provide a great user experience but it makes a lot of good technical sense. The question is what the user is doing while the server is making its thing. Right, he is waiting. User waits at every step in a task some more.
Evidently, in case the designing of the Web is made from scratch for applications, user won't have to wait around. When once an interface is loaded, why the user interaction should come to a stopping each time the application requires something from the server. Actually, why the user should observe the application goes to the server altogether.
There are real-world examples that show the utility of AJAX:
That is presumably the one of the most impressive and easiest AJAX improvements both to perform and show the ability to imply a facile way to present the so-called "accordion effect". It is a method for comfortably presenting more info than the screen real estate could normally allow.
That is very attractive snippet that comes from Janos Pal Toth. You may download this script then upload it to your server and easily access it. Once you run it, you will se an enlarging rectangle in every image. To increase or decrease its size you need just left-click and drag on the magnifier. To increase or decrease the magnification factor all you need is right-click and drag.
Warnings of Web Design
There are two cautions for usage of AJAX should be noted. Firstly, it is overkill to have too much of AJAX on a site. A bit of pizzazz comes a long way. Make sure you doesn't "over-wow" a disappointed user and force them to visit a less visually difficult site.
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