Ten years ago you could include a hit counter on your website and announce proudly that your site was doing "very well" as soon as the number reached 100,000. The current process is not nearly as simple or straightforward. The internet works in complicated ways that have evolved to solve a number of small problems. Consequently, concrete statistics are often difficult to obtain. If you believe the number of online visitors is a reliable indicator to gauge the popularity of your site or the potential sales of your product, you should consider the following:

1. Hit - Every time a user requests a file on your site (a page, not a picture or link to another site) it counts as a hit.

2. File - When a file or page is actually sent to the user, it counts as a file. Files normally outnumber hits, but neither is very useful in measuring traffic. Any IP can request all of the files on your page several times in one hour without any actual involvement from the user.

3. Impressions - This is a concept that has existed in advertising for many decades. For example, a 2-page magazine advertisement counts as one "showing of a creative concept". This equates to one impression every time a reader sees it. If your web page contains five small banners, you could have 10,000 page views, but 50,000 impressions.

4. Page Views - Almost everyone believe this is the most important traffic statistic. This term simply refers to the number of times any particular page has been viewed. This metric can be useful. However, values can often be over-inflated and should always be considered in conjunction with unique visits.

5. Visits & Unique Visits - A visit is simply logged every time a remote IP requests one of your pages for the first time in a timeout period. A unique visit is usually defined as "one visit per IP per day", regardless of timeouts.

The above are all very important metrics, but understanding them properly is key. The best way to decide how your site's traffic is performing is by creating a formula. If you know what you are doing, you can develop your own formula. However, there are plenty of effective formulas currently available. A basic idea of how to evaluate your traffic involves reviewing monthly averages, unique visits and page views. This will give you an idea regarding how many individuals visit your site, how many pages they view, and how long they remain.

A basic formula from MarketingExperiments.com would be:

C = 4M + 3V + 2(I-F) - 2A

This formula shows that conversions are a product of motivation (M), value (V) and then the friction (F) elements minus the incentives (I). This will help you determine how many customers are likely to purchase your product. However, you need all the values first! You can purchase online analytic tools or download them for an upfront or monthly fee. All of them can return useful data to a webmaster.

If you are not an expert webmaster, or you do not understand many of the technical intricacies of web traffic, you should download Google Analytics. This is one of Google's new free products, and all you require is a GMail account and a web site. The program provides easy to read analytic data in a web-based form for your website. This can make it easy to determine which metrics would be most useful for analyzing your online traffic.

Michael Ehlert
RevUpYourWebBusiness.com

BETA is a pure object oriented programming language developed by Scandinavian School in System Development, Nordic Universities.

This was released after a series of enhancements of their first object oriented language SimulaI which was a simulation language. Soon it was generalized into Simula67 which had the object oriented framework, and worked on the concepts of class, sub-class, virtual functions etc. This was enhanced by another object oriented language Delta that worked for system description; this meant it could express predicate logic and state changes. This was a non-executable effort and thus did not qualify as a language. So it was decided to design a programming language Gamma that works as Delta but is executable.

Eventually, Gamma was never made, rather Beta was made. While Beta was being made, it was realized that Beta was much more powerful than what Gamma would be or ever could be. Beta is a programming language like C++.

Currently, BETA is available on UNIX workstations, on PowerPC Macintosh and on Intel-based PCs. BETA has an optimum balance between compile time checking and run time checking. The type cast checking is done at compile time, however, for the entire set of type check and type conversion to be done at compile time requires a lot of time and thus increases the complexity of a program. Thus, an optimum balance has been made.

BETA is a logical description of the language. It works on the concepts of class, sub-class, virtual functions etc. It also contains transient variables, ones whose scope is program execution, and persistent variables, those whose values are retained in the disk space and are available at the time of next execution.

AJAX is a cross-platform technique that can be use on different operating system and web application based on JavaScript and DOM. It is a powerful approach of web application technique using client-side scripting to exchange data with the web server. This means that with AJAX, web pages increases interactivity and faster responsiveness of user interface by having an independent communication with the server. Gone are the traditional ways of web browsing whereby a new page communicates with each user's request. This creates dynamic web application user interface that renders effective usability of every desktop applications. AJAX primary purpose is to increase the web page's interactivity, speed, functionality, and usability.

Ajax, by definition, is not technology. In fact, it is an application of several technologies. Ajax incorporates several existing web application like XHTML and CSS for standard-based presentation; the Document Object Model for dynamic display and interaction; XML and XSLT for data interchange between the server and the client; the XMLHttpRequest to exchange asynchronous data with the web server; and the use of JavaScript as the core code for running AJAX application.

To understand AJAX, first we must know how the traditional web application works. The classic web interface trigger an HTTP request back to web server. The server then process and retrieve data before returning an HTML page to the users. This process as a model for hypertext medium makes technical sense. But as web application evolves this process does not make the user interface more interactive and practical.

AJAX, on the other hand, eliminates this problem. AJAX speed up the loading of any web application with the use of intermediary between the user and the server called AJAX engine. This adding of another layer application of eliminates the start-stop-start-stop nature on the web. The browser loads an AJAX engine at the start of session.

The AJAX engine allows the user interface and the application to interchange data asynchronously-independent of the communication to the server. So the interaction between the user and the web never slows down, no point of waiting for the server to do something.

AJAX is a powerful technique that grows exceedingly as web application. That is, AJAX is now part of the guiding principle as web 2.0 flourishes and become a practical reality. With the power of AJAX, many of the business and marketing web site are integrated with AJAX application server platform now. Most of the major products of Google such as Gmail, Google Maps, and Google Suggest are employing AJAX application. Other web services like the photo-sharing application Flickr, Amazon's A9.com, and the new Yahoo! maps depends on AJAX. The application of AJAX comes from simple function to the most complex program like Google Maps.