Ajax and Adobes Display Flex are both used to generate powerful and interactive web applications. Both are program indie i. e. material will render the same across different systems and permits for program animation. There are various similarities between the two. However, there are considerable differences as well. Say for example, Adobe flash is computer animation format software that allows for fast download of computer animation data in a resizable format in order to facilitate files be downloaded over a normal modem connection. Display creates better interactivity by encoding information in smaller data files.
This report discusses both Ajax and Flash/Flex technology as they struggle in making Rich Internet Application(s). Both Ajax and Flex can execute similar functions. However, there are few benefits and drawbacks to both make reference to Stand-1 for comparisons.
2. What is Ajax?
Ajax is a set of technologies which allows a website to be very reactive. Most importantly Ajax facilitates asynchronous communication and also partial refresh of the website. Here Partial refresh means; when an connection event is invoked, for e. g. whenever a user gets into information into an application on a website and clicks a "Submit Button". The server steps the keyed information and profits a incomplete response specific to the data it receives (See Number-2). Notably, the server does not transmit back a whole page, compared to the traditional web software which is "Click, Wait around, and Refresh" (See Amount-1), instead, only part of the page is updated. The web program that uses Ajax is events and data motivated, where as classic web applications are powered by web pages.
Full webpage refresh
. wait. . refresh
. hang on. . refresh
Figure-1: Classic Web Program Model - Synchronous Communication
Partial UI updates
Figure-2: Ajax Model - Partial UI improvements and Asynchronous Communication
2. 1. Ajax Asynchronous
Asynchronous means after mailing data to the server, a client can continue to perform other activities whilst the server is constantly on the do its control in the background. Such as, a individual can continue steadily to move the mouse over a map in google website and notice a soft, uninterrupted change in the display. Compared to the traditional, synchronous, approach here the clients do not have to wait for a reply from the server before carrying on. Figure 1 and Body-2 illustrates a Classical vs Ajax web program interaction.
An additional significant feature of Ajax-enabled sites is that whenever a meeting is triggered, responses from Ajax aren't restricted to submitting data in a form or simply clicking a link. An Ajax response can be induced in various number of ways such as moving a mouse to a particular area on a web page, getting into part of the entry in a text message field, or dragging a map around with a cursor in Google Map etc. With these cool energetic interactions among the user and the web webpage excels web applications nearer from what users experience in abundant desktop applications.
2. 2. Ajax Technology at a glance
Cascading Style Sheets (CSS) - a markup terminology designed for defining a page display style, such as colors and fonts etc.
Document Object Model (DOM) - reveals a reasonable view of the website in a tree framework.
Like other web applications, Ajax-enabled web software uses markup dialects such as HTML or XHTML to provide webpages. Java Server Web pages (JSP) as server-side technology may be used to generate web pages. Moreover, server side request systems play an important role in handling Ajax applications. Server side software system such Java2EE, which include support for consumer personality management, data validation, and persistence, suits perfectly with the Ajax methodology Ed Ort (2006). Number-3: illustrates how all these technology work collectively to take care of a consumer action.
2. 3. Ajax Architecture
Callback ( )
Web and / XML Server
HTML + CSS data
HTML & CSS Data
Figure-3: How Ajax Solutions Handle a User Action
The XMLHttpRequest subject makes an asynchronous HTTP submission to the net server.
The web server functions the need and returns an XML doc that contains the result.
The XMLHttpRequest thing telephone calls the callback ( ) function, it gets the info and processes the result.
The HTML DOM is updated.
2. 4. Ajax and Server-Side Java Technologies
3. 1. Background
Adobe Display Professional Multi-Media authoring program developed in 1996 by Macromedia and was attained by Adobe in 2006. Flash is used to make content for the Adobe proposal Platform. One of the Flash's greatest strength is ease of development.
They are incredibly well-liked for creating HTML applications and are hence very significant to web development. Often assist to automate tasks, making web encoding and usability faster. For adding computer animation and interactivity to a website Adobe flash is one of a favorite method. However, it happens to be contributions toward producing RIAs (Rich Internet Applications). The release of Adobe Flex technology straight responds to RIA development.
Flex is specifically where Flash complies with with Ajax. Both solutions aim towards creating RIAs. Flex mechanism is on the demonstration level of an RIA. It really is a merchant specific product which means it isn't free and requires purchase.
4. Comparability between Ajax and Flex
Table-1: Comparisons on features between Ajax and Flex/Flash
Supported through external plug-ins (Advertising Player).
Support embedded display audio. Dynamically insert audio.
Flash player plug-in is required.
Major compatibility variations between browser types.
Minor versions between variants of Adobe flash.
Supported through exterior plug-ins (Multimedia Player).
Dynamically weight FLV video files or embedded videos.
Powerful layout features.
Text API mimics some HTML features.
Full Support. MXML
4. 1. Key Difference
Free and Proprietary - One of the biggest features of Ajax is that there are many widely available useful tools online. You don't have for added IDE in Ajax, as the major the different parts of this technique simply need leveraging. On the other hand Flex is a proprietary tool so designers have to invest a bit to use this development format. A paid tool assures working tool to developers. Supports for openly available might not exactly be available.
Learning Need - Flex has already been popular to various builders particularly those who have already caused Display. Combine this reality with the available system; developers can expect execution of Flex established application faster. Ajax, on the other hands, will require more from their developers. Those that wanted to create the application form manually, without the help of frameworks, will find the task of fabricating Ajax founded applications difficult. This is the reason why Frameworks and libraries are manufactured.
Data vs. Appears - although each development form can be utilized for data and its looks, Ajax is more proficient in handling and manipulating data. As an internet request, various functions, factors and objects can be found and they are simply created to manipulate data. Flex on the other hands, is very helpful in creating great looking websites. The reason behind this experience is from that reality it traces its origins from Display.
4. 2. Advantages and Disadvantages of Ajax and Flex/Flash
Decrease in bandwidth use.
Complex. Requires more coding.
Adobe MXML and Flex allows the integration of internet applications through a number of desktop functions.
Flex gets the advantage of Flash player being installed on over 90% of browsers. Support for webcam and mike.
Present information in a visually rich user interface.
Video and music integration with the Flex API is simple and straightforward
Flex might not handle plenty of records easily.
Flex does not read or write files to end-users computer. That is a restriction of Adobe flash Player.
More CPU consumption.
Lack of support for multi-threading.
No DOM Model
Binary Sockets, cross-domain Gain access to Policy
Flash Vector graphics APIs
Object model access
Data-stores, backend processing, legacy systems
Web and/or XML server
HTML + CSS data
This paper has presented a synopsis of the AJAX technique for expanding interactive web applications.
Ideas of how to expose the AJAX strategy in teaching web development and instances for laboratory sessions
have been advised.
Incorporating popular systems into the computing courses appears to motivate the students and in the
same time it can help them understand better fundamental theoretical concepts. The AJAX technology requires
relatively little new knowledge and can be easily contained in coaching web development by focusing
on specific elements of existing solutions and demonstrating appropriate applications. The challenge is
the frequent need of updating the materials and selecting relevant cases and tools. However, the experience
of learning new technologies and related applications has been worthwhile and thrilling. The material
presented here could be used as an example of embedding appearing systems in the computing curriculum
through existing modules.
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