Web Application Development Guide

Simply put, Web Applications are dynamic web sites combined with server side programming which provide functionality such as interacting with users, connecting to back-end databases, and generating results to browsers.

Examples of Web Applications are Online Banking, Social Networking, Online Reservations, eCommerce / Shopping Cart Applications, Interactive Games, Online Training, Online Polls, Blogs, Online Forums, Content Management Systems, etc..

Technologies

There are two main categories of coding, scripting and programming for creating Web Applications:

I. Client Side Scripting / Coding - Client Side Scripting is the type of code that is executed or interpreted by browsers.

Client Side Scripting is generally viewable by any visitor to a site (from the view menu click on "View Source" to view the source code).

Below are some common Client Side Scripting technologies:

• HTML (Hyper Text Markup Language)
• CSS (Cascading Style Sheets)
• JavaScript
• Ajax (Asynchronous JavaScript and XML)
• jQuery (JavaScript Framework Library - commonly used in Ajax development)
• MooTools (JavaScript Framework Library - commonly used in Ajax development)
• Dojo Toolkit (JavaScript Framework Library - commonly used in Ajax development)

II. Server Side Scripting / Coding - Server Side Scripting is the type of code that is executed or interpreted by the web server. 

Server Side Scripting is not viewable or accessible by any visitor or general public.

Below are the common Server Side Scripting technologies:

• PHP (very common Server Side Scripting language - Linux / Unix based Open Source - free redistribution, usually combines with MySQL database)
• Zend Framework (PHP's Object Oriented Web Application Framework)
• ASP (Microsoft Web Server (IIS) Scripting language)
• ASP.NET (Microsoft's Web Application Framework - successor of ASP)
• ColdFusion (Adobe's Web Application Framework)
• Ruby on Rails (Ruby programming's Web Application Framework - free redistribution)
• Perl (general purpose high-level programming language and Server Side Scripting Language - free redistribution - lost its popularity to PHP)
• Python (general purpose high-level programming language and Server Side Scripting language - free redistribution)

Program Libraries

Program libraries are a collection of commonly used functions, classes or subroutines which provide ease of development and maintenance by allowing developers to easily add or edit functionality to a frame-worked or modular type application.

Web Application Frameworks

Web Application Frameworks are sets of program libraries, components and tools organized in an architecture system allowing developers to build and maintain complex web application projects using a fast and efficient approach.

Web Application Frameworks are designed to streamline programming and promote code reuse by setting forth folder organization and structure, documentation, guidelines and libraries (reusable codes for common functions and classes).

Web Application Frameworks - Benefits and Advantages

• Program actions and logic are separated from the HTML, CSS and design files. This helps designers (without any programming experience) to be able to edit the interface and make design changes without help from a programmer.
• Builds are based on the module, libraries and tools, allowing programmers to easily share libraries and implement complex functionality and features in a fast and efficient manner.
• The structure helps produce best practice coding with consistent logic and coding standards, and provides other developers the ability to become familiar with the code in a short time.

Coding Guidelines, Standards & Convention

Coding guidelines are sets of rules and standards used in programming a web application project.

 

These rules and standards apply to coding logic, folder structure and names, file names, file organization, formatting and indentation, statements, classes and functions, and naming conventions. These rules also enforce writing clear comments and provide documentation.

Important benefits of using Coding Guidelines

• Creates the best environment for multiple programmers to work on the same project
• Provides ease of maintainability and version management
• Delivers better readability and understanding of the source code
• Insures that other developers can understand and become familiar with the code in a short time

Web Applications Lifecycle Model

Web Application Lifecycle is the process of developing a web application and involvement of the multiple teams that are engaged in the development process. Each organization may set forth its own unique style of operating.

Some companies follow a certain standard model such as SDLC (System Development Life Cycle) or Agile Software Development Model.

• SDLC is the traditional process of developing software or web applications by including research to identify and define the application requirements, information analysis, architectural design and specifications blueprint, team involvement, programming, testing and bug fixing, system testing, implementation and maintenance.
• Agile Software / Web Application Development is the iterative development process and development process practices that focus on collaboration of people involved and provide a better procedure to allow revisions and evolution of web application requirements. Agile methodology includes research, analysis, project management, design, programming, implementation, frequent testing, adaptation and maintenance.

Web Application Development Process

Web Application Development Process organizes a practical procedure and approach in application development.

For detail information: Web Application Development Process

The following list of procedures and suggested documents provide a good outline for a Web Application Lifecycle and Process:

• Roadmap Document: Defining Web Application, Purpose, Goals and Direction
• Researching and Defining Audience Scope and Security Documents
• Creating Functional Specifications or Feature Summary Document
• Team Collaboration and Project Management Document
• Technology Selection, Technical Specifications, Illustrative Diagram of Web Application Architecture and Structure, Development Methodology, Versions Control, Backups, Upgrades, Expansion and Growth Planning Document, Server Hardware / Software Selection
• Third Party Vendors Analysis and Selection (Merchant Account and Payment Gateway, SSL Certificate, Managed Server / Colocated Server Provider, Fulfillment Centers, Website Visitor Analytic Software, Third Party Checkout Systems, etc.)
• Application Visual Guide, Design Layout, Interface Design, Wire Framing
• Database Structure Design and Web Application Development
• Testing: Quality Assurance, Multiple Browser Compatibility, Security, Performance - Load and Stress Testing, Usability
• Maintenance

Web Application Testing

Testing is an important part of the Web Application Development process. On occasion, testing would consume more manpower and time than development itself.

Below are some of the most common testing needed for any web application development process:

• Quality Assurance and Bug Testing
• Multiple Browser Compatibility
• Application Security
• Performance - Load and Stress Testing
• Usability

Trends and Popularity

The demands for companies to build Web Applications are growing substantially.

If planned and built correctly, web applications can:

• Reach and service millions of consumers and businesses
• Generate substantial, multi-layer / multi-category income from consumers, businesses and advertisers
• Easily build business goodwill and assets based on audience reach, popularity, technology and potential growth

Below are good reasons for companies to build web applications:

• Companies want to streamline their internal departments and functions, operations, sales and project management, etc.
• Companies want to take advantage of a web based application's flexibility and versatility, by moving away from the traditional desktop application platform to the web application platform
• Companies want to gain more clients or better service their current clients by offering convenient services and solutions online
• Companies want to build new web applications to offer innovative services or solutions to online users and businesses

Business Impact

Today's web applications have substantial business impact on the way companies and consumers do business such as:

• There are opportunities to gain the upper hand and bypass the traditional brick and mortar companies when this type of opportunity was rarely possible or existed before the explosion of the web
• The new web created a global business environment which challenges the way in which traditional companies do business
• Companies need to reinvent and evolve in order to compete in today's trends, online business and global marketplace
• Businesses and consumers have more options and resources to research and easily compare and shop around for the best deals
• Information and resources are immense and available to everyone who seeks it
• Businesses or companies who used to profit from consulting or advice, that can now be easily acquired online are struggling, and will need to take a new business direction if they want to stay solvent.

Web Design Versus Web Development

The terms web designer and web developer are used interchangeably in the media and advertisements. But, they are not the same thing. Design involves what the visitor sees on your website, development involves the site’s functionality. This article explores the difference between these two disciplines.
 

A website contains several distinct aspects:

• Look and feel – primarily the graphics, color scheme, navigation elements, etc.
• Content – information, products, etc available on the site.
• Functionality – functionality includes interactive features that the web site provides to the visitors and the required infrastructure needed to provide them.
• Usability – the site from a visitor’s perspective and includes things like program interactions, navigation and usefulness.

Website Templates

Website templates are web page designs created by professional web designers that are sold to others for their use. Templates normally have dummy content used as a placeholder so you can see what a finished page will look like. A template is an easy way for a novice to create a good-looking professional quality websites quickly and easily.
 

Most of the commercially available templates can be found in a variety of themes and color schemes. Theme templates come complete with appropriate graphic for each theme. If you have some graphic or web design skills and a knowledge of HTML, you can create a customized professional looking website at a fraction of the time it takes to create everything yourself. Just remember you don’t own the copyright to the design.

Before selecting a template, you will need to identify the goals you have in mind for your website so you can select the most appropriate template.

Photo - Image Optimization

Photo Optimization is necessary to allow a web page to load in the shortest amount of time possible. Fast loading time require small files. This article discusses the methods used for photo optimization.

In an ideal world, a web designer could use the highest quality photos and have the webpage download lightening fast. Fast loading requires small file sizes for pictures. Unfortunately, there is a trade off between picture quality and file size.

Web surfers are a notoriously impatient bunch. If a website takes too long to load, they will just click away and never come back.

Web Design Guidelines

The goal of most web designers is to create an attractive, easily accessible and functional website that will convince the visitor to do something. Creating such a website requires good graphic design, easy and intuitive site navigation, logical site layout and good web copy. The following suggestions are general web design guidelines.

Web Content

You want the visitor to see you as a knowledgeable information source and/or a reputable business. Poor grammar and spelling will immediately reduce your credibility. Remember that people use the internet to find information. Whether you are selling your own product or recommending someone else’s products, you must first provide valuable information to the visitor or they will click away and find a website that gives them what they what they want.

W3C and Validation

Who is W3C? W3C stands for the World Wide Web Consortium. The goal of W3C is to provide a set of web standard and guidelines that will help alleviate the problem of code incompatibility in the hundreds of different web browsers in use throughout the world today.

The standards are only a guideline, but smart web designers and web developers pay heed to what the organization has to say. In fact many of the web programming jobs found on web design freelancer job boards, specifically requests that the code used to build a website is W3C validated. Although fairly common for XHTML and HTML it is becoming increasingly important especially if the web site is a total CSS web site.

Web Page Optimization

We all want to have the most attractive website that leaves a visitor wide-eyed and completely dazzled. Usually an extremely attractive website design involves lots of graphical elements, increasing the overall page size which causes the page to download slowly to the browser. This article will provide some useful tips on how to keep your website design attractive but still downloads quickly.

As the average internet bandwidth rate per computer is raising, more and more webmasters allow themselves to develop complex websites laden with heavy graphic elements. In extreme cases you can find websites that take as much as a few minutes to load their content in your browser. Of course the user will never wait that long for a website to load, and will move on to the next website in his search results.

eCommerce Website Design

eCommerce websites have their own unique character that is designed to lead the visitor to one simple task – make an online purchase. A web designer needs to consider a variety of online selling principles while designing an eCommerce website. In this article we will try to take a look at some of the major design aspects that you must have in an eCommerce website.

Many of you are probably already asking why eCommerce website design is different from any other website design. They all need to be attractive, well organized and use the right colors that fits the website spirit and so on. Your instincts are good. However a close look at some successful eCommerce websites will reveal the conceptual differences that are typical in a successful eCommerce website.

An eCommerce website needs to follow certain selling principles:

1. Give the user a pleasant experience during his online shopping.
2. Make certain you provide sufficient information on who owns the website and why they should be trusted.
3. The website must be easy to use. If it isn’t, the visitor will go to your competitor.

Those principles are not new. We all know those basics from our day to day experiences in the mall, shopping center and every other market place that is waiting for us to open up our wallets. The big challenge for a web designer is how to translate those conventional marketing techniques to the virtual world of the internet. I’m sure you’ve all noticed that in most supermarkets the bread stand is placed at the far end of the building, yet you can smell the fresh bread at the entrance (sometimes they even use a special air duct to carry the smells). That has been done deliberately. Marketers use our sense of smell to draw us through the store where we are exposed to all sorts of tempting goodies as we go to get our loaf of bread.

How do you draw an imaginarily path in a web page? A path designed to lead the visitor to do what you want him to do…make an online purchase. Unlike the supermarket our website has no smell. In a website the distance from one point to the other is pretty much the same, so the exit is always right there. In a website you can try to order the “shelf” in the way you think will best expose the visitor to many of your products, but there is always a chance that he will find a short cut to another page that can also be the way off your site.

As can be see, although putting your products on the web is much easier than renting space and opening a supermarket. However, selling your products on the web can be difficult.

A good eCommerce website design will lead the visitor to the right page in one click or two at the most. Sometime web designers will use techniques that would never be considered for non-eCommerce websites. Everyone has seen at least one sales letter website. On these web pages the only link is to the order form. Sales letters are not the most typical eCommerce website because they usually sell only one product. That allows the web designer the ability to exaggerate the one click principle and make it an advantage. All the facts about the product have been presented to the user is a smart way while every few lines he has the option to click on the order form. If he is not yet convinced he will have the option to continue to read more facts and testimonials about the products. Believe it or not, those sales letter websites are actually selling.

“What about online shops?” Online shops have to deal with more than one product. Of course, the greater number of products increases the complexity of the website. Sophisticated eCommerce websites use a variety of personalization technologies in an effort to determine the best selection of products to offer to the visitor. Personalization technologies are a major part of advanced eCommerce websites. However this topic is beyond the scope of this article. The cleverness of an eCommerce website’s personalization technology has a major influence on its design. The first to use such technology was Amazon.com who decided to push their client’s books to a visitor based on that visitor’s past orders combined with the statistics they had collected on all visitors used to predict what someone looking at a specific book might also be interested in reading. Today the goal is to try to predict what to offer the user on his first visit as well.

An eCommerce web design is also about the layout. One important aspect is where the user’s eyes look first when accessing a web page. Lots of research has been done on this topic. Most research showed that the middle left side area will attract the most attention followed by the center of the page. By using these techniques web designers try to draw the “walking path” for the visitor’s eye, much like what was done at the supermarket. An experienced eCommerce web designer will know how to create designs to meets those demands.

If you are about to open an eCommerce website or you are already own one, make sure you understand the web design principles for online selling. Consider consulting with an experienced website designer preferably someone who has experience with eCommerce websites. Good luck with your sales.

Aqeel Ahmed Zaman is an Internet Business Consultant and Online Web Marketing Executive for Gexton Pakistan.  Gexton Pakistan offers the complete web solution for your websites from web design layout to the Search Engine Optimization services.

Banner Design Success Techniques

Banners have been a major part of the World Wide Web world since its early days. Copywriters burn the midnight oil looking for new designs that will grab the visitor’s attention and compel him to click on their banner. This article discusses some of the most successful banner designs.

Teasing your curiosity

“Do Not Click Here”. How many of you have seen this slogan in a banner? What did you do when you first saw it? If you are like most people, when you first saw it, you clicked on it. What makes this simple sentence so powerful that it compels the visitor to click on it? The answer is curiosity !!!

Copywriters and web designers are always looking for ways to arouse the website visitor’s curiosity. As banner designers their goal is to attract the visitor to the banner, usually completely ignoring the other elements on the web page that are more important to the website owner. However, because the “Do Not Click Here” slogan tells us nothing about what is on the next page, it arouses the visitor’s curiosity and makes it almost impossible not to click on this banner to see what’s behind it.

Simple integrated design

When Larry Page and Sergey Brin first introduced their product, “Google”, to potential investors, they mentioned Adwords as a backup option in case they didn’t make any money. We all know how lucky they were that they eventually needed to use that backup plan. What made these “boring” ads such a great success?

Unlike other ads, Adwords neither arouse the visitor’s curiosity nor disturb the main flow of the web page. In fact, the opposite is true. Adwords are meant to look like part of the search results giving the user the feeling that those ads are there because he asked for them. No one has any doubt that this simple design helps Google to promote both their search engine and the Adwords advertising program.

Take part in the action

Banner designers wisely used interactive technologies like Flash to develop type of banners that invite the user to take part in the action. Drawing the user into the action can be accomplished in many creative ways. Some web designers use popular old games elements as part of the scene. You all know the famous game pacman. One of the banners that I like the most is the one where the user is allowed to let pacman “eat” few dollar signs. At the successful completion of this mission, a nice slogan is revealed asking him to open a saving account that will earn money with a fixed interest rate. The idea behind those interactive banners is simple: Let the user take part in the action and then at the right moment when his mind is less resistant, show him the sales message. Those interactive banners proved to be very efficient. Their biggest disadvantage is that most webmasters will not allow that kind of banner because it distracts too much from the web page content.

Back to Black and White

Website designers are always seeking to be different with their design ideas. One banner fashion trend that can be found lately is Black and White banners. Although research shows that blue and yellow are the most efficient color to use in a banner, Black and White banners have been seen a lot lately. It’s probably something that will eventually vanish, but the idea behind it is to be different and to make the user wonder what’s up and hopefully click on the banner to find out.

Get Out of the box

Have you heard about the www.gexton.com? If not, check out this website before continuing to read this article. This website has proven that creative thinking not only can bring you money but also create a whole new trend. Right after the milliondollarhomepage.com got the internet community’s attention, many designers used this idea to design a banner on which they sell a 10x10 pixel area. Like the original concept, this banner design had its impact. Advertisers are investing money on these ad spaces while at the same time visitors are curious enough time after time looking at those unorganized pixel banners to click on them.

What about the next trends

What the next trends of banner design will be is something that probably no one can accurately predict. It’s up to some web designer to come up with a new concept that proves to be efficient. There is no doubt that in the future we will see new ways of designing banners, especially when more and more advertising budgets are being spent on the internet instead of commercial TV and other types of advertising media. I guess we will just need to be patient.

Aqeel Ahmed Zaman is an Internet Business Consultant and Online Web Marketing Executive for Gexton Pakistan.  Gexton Pakistan offers the complete web solution for your websites from web design layout to the Search Engine Optimization services.