Computer Architecture : The Terminal Server Architecture

Like any other complex structure, software must be built on a solid foundation. Failing to see the big picture or consider key scenarios, failing to design for common problems, or failing to appreciate the long term consequences of key decisions can put your application at risk. Modern tools and platforms help to simplify the task of building applications, but they do not replace the need to design your application carefully, based on your specific scenarios and requirements. The risks exposed by poor architecture include software that is unstable, is unable to support existing or future business requirements, or is difficult to deploy or manage in a production environment. Software architecture must be distinguished from lower-level design (e.g., design of component internals and algorithms) and implementation.

Web applications use a three-tiered architecture: The first tier is the Client Browser application, the second tier is a Web Server, and the third tier is a ________ .

If we turn the clock backwards about 10 or 15 years, we find that people do not care much for the security of the web due to the lack of trying to exploit web applications for personal interests. But more recently, the issues related to the security of the Web began to grow, but unfortunately, there are many Web applications that have been developed, but these applications are started without any design for security.

$100 million web-enablement initiatives have been executed by Cisco in early 1990s. Cisco strategy was to use all standard equipment, tools, and smart group of people to apply the web-enablement. Most of the interactions were network-based and begin at home page of cisco which allowed the employees to communicate with customers, partners, and suppliers more efficiently and effectively. Applications of intranet and internet were created as a part of these initiatives. Most efficient applications will be illustrated in the following lines.

In 1990, he wrote the first web client and server and when web technology started to spread,

A Web application is an application that is invoked by a client through by web browser over the Internet. It has complex Graphical User Interface (GUI) with number of backend software components integrated into it. Nowadays, demand for web based applications is increasing dramatically and so complexity is also increasing. Most

The Web architecture should describe and justify operating system choices (i.e., Linux, Apache, MYSQL, PHP, Windows, IIS, SQL, etc.).

Microsoft’s internet information services (IIS) is one such solution. This webs server is designed to run on Windows server platforms. Consequently, it integrates well with Microsoft’s online applications. It features an intuitive graphical user interface that simplifies its installation and use. However, the costs of installing new versions of this web server are high. In addition, its restriction to the Microsoft server OS platform inhibits system flexibility. An alternative to IIS is the Apache web server. This is an open sourced application that can be implemented on a wide variety of operating system platforms. Apache’s integration of a pearl and PHP engine facilitates easy integration with the application programming interface (Gunther, 2006). In addition, this web server is available for free. This makes it a cost effective alternative. Further, Apache’s event-driven architecture enables it to perform ideally even under heavy loads. However, Apache usage involves a relatively strenuous learning curve. The software’s complexity may present an obstacle to its use by new users. Another web server that can be adopted for use in this project is Nginx. This server is easy to use as well as stable. It is also based on an event driven architecture. This architecture makes it an efficient user of system resources even under heavy loads (Tanenbaum, 2001). Nginx’s ease of installation, configuration, and use make it a viable alternative for adoption in

There are many operating systems that are common on the Internet today. Back when computers could only handle one command at a time, in the 1950 's, was very time consuming. Now, about sixty years later, a computer 's operating system can handle many applications at one time while delivering speed and is user friendly. Although there are many Operating Systems that are available, there are onle a few of them that are well knon and is commonly used. Some of the most common Operating Systems that are used on the Internet are the Windows platforms such as Windows XP, Sun Solaris, UNIX, Apple, and Linux Apache.

This is most likely why new web-oriented architecture (WOA) endeavours are seeing the light of day. Since they are littler, use Soothing abilities incorporated with HTTP, and can be empowered in existing web applications with minor changes.

This research report was to understand the background of the software architecture and how it interrelates with the architecture of web browser. Having a working reference that could be used for the project will help both during maintenance and design time.

“Imagine a person on a desktop computer who uses Microsoft Access to load up a list of personal addresses and phone numbers that he or she has saved in MS Windows “My Documents” folder. This is an example of a one-tier database architecture” (Windowsecutity.com) “A two tier client/server architecture is one in which a user interacts through a Graphical User Interface to communicate with the database server across a network via Structured Query Langauage.” (Windowsecurity.com) Last is an N-Tier Clinet/Server Architecutre. “Most n-tier database architectures exist in a three-tier configuration. In this architecture the client server model expands to include a middle tier (business tier) which is an application server that houses the business logic. This middle tier relieves the client application and the database server of some of their processing duties by translating client calls into database queries and translating data from the database into client data in return.” (windowsecurity.com)

Software architectural styles are frameworks that have been developed as general solution for the common problems which are arise in the software development process.

Abstract – Today, there are millions web application or web app on the internet, including app market, such as Amazon app store, Apple Store, Chrome App Store, etc. The web application is server-based application, and client no need to install the software in their local pc or laptop. User just need to use compatible browser to access the web application at anywhere and anytime. In fact, the web application still a form of software. To develop a successful software, an appropriate software development method is critical. Because, it is a guide book to monitor the development life cycle throughout the development project. In this work, two popular methods will

Architecture: The overall design or structure of a computer system with hardware and the software required to run it.