Software Development Life Cycle


Software development life cycle is a step-by-step process involved in the development of a software product. It is also denoted as software development process in certain parts of the world. The whole process is generally classified into a set of steps and a specific operation will be carried out in each of the steps.


The basic classification of the whole process is as follows


Each of the steps of the process has its own importance and plays a significant part. The description of each of the steps can give a better understanding.


This is the first and foremost stage in the development and one of the most important stages. The basic motive is to plan the total project and to estimate the merits and demerits of the project. The planning phase includes the definition of the intended system, development of the project plan, and parallel management of the plan throughout the proceedings.

A good and matured plan can create a very good initiative and can positively

The Problems Faced In Using Predictive Model With R Programming and MySQL


In this article we will have a brief discussion about Big Data.

Even if you show even a minute amount of interest in the technical aspects of the net and connected devices, you should be well aware of how humongous amounts of data are generated on daily basis and owe their origins to several sources and so it is necessary to have an analytics layer in order to make the best of all of the data that is available to us. Predictive analysis is only becoming more and more relevant which promises to have a significant positive impact on businesses as well as the bottom line.

But the problem with predictive analysis lies in the fact that it is dependent large sets of mathematical computations and is a process that requires large amounts of memory to be present. So when we computationally deal with Big Data, performing mathematical computations on the same becomes even more difficult.

So we end up facing two particular predicaments:

• Optimizing the process of computing for predictive analysis of Big Data in the presence of computational resources that are comparatively limited in

System Administrator Job Description

It jobs

The system administrator helms the technical support department in a company. The job includes a host of responsibilities, ranging from efficient sever management to monitoring software as well as hardware upgrades. It is important that system administrators have the talent and ability to learn new technologies and implement them successfully. These professionals are expected to possess thorough knowledge of Microsoft and Linux administration systems. According to industry experts, the opportunities for system administrators in the job market are on the rise, and are expected to grow in the days to come.

Job Description

Managing Servers
Managing the upkeep of servers is perhaps the most important task that a system administrator has to handle. This may begin with server installation or configuration, moving on to making regular upgrades and taking up-to-date backups. They also closely monitor and develop procedures for backups of the servers. They have to ensure that the server is absolutely secure from any illegal access. In this regard, administrators may need to have server-specific certifications as well.

Systems Management
This job also involves taking appropriate steps for the right upgradation of the systems

How to Select the Best Computer Programming Training Course For You

Opportunities in computer programming continues to rise, and increasingly more people are choosing to develop their skills and enter the industry. So naturally, computer programming training courses are bobbing up everywhere. So how do you know which course is right for you, and will help you actually get a job?

You can find training in many places, from local to online schools. Generally, a programming course is two years in duration. Before you sign up, you need to check five basic elements. Look at the school’s accreditation, the quality of their instructors, the programming languages they teach, the quality of their equipment, and the general reputation of the course or program in the industry.

You should know and be skilled in at least of two common programming languages. The number of programming languages has grown immensely. The principle language types are categorized into functional, operational, graphical and internet-based languages.

Before you decide to take a training course, know which type of programming you’re interested in. Are you curious about enterprise resource planning? The you’ll need advanced primary Application Programming. Do you want to develop website applications? Then you’ll need Java, Java Script and some other particular languages.

If you decide to go to a

Introduction to Computer Programming and Programming Languages

Since computer science was recognized as a distinct academic field in 1960s, it has made great strides especially in making things a lot easier for humans. One of the issues it has solved is the way problems that need to be addressed have been translated into a code or format computers can understand. There are various ingenious and great solutions used in such problems. Here’s an introduction to computer programming that will give you a greater understanding of this exciting discipline.

In order to pass on instructions to computers, programming languages are used. These languages, which are designed by humans, are based on the so-called rules of syntax and semantics. These days, a wide range of languages have been made, employed, discarded.

Programming languages usually don’t last that long. They come up but after just a few years of stay in the industry, you will feel that the language needs some improvement or you need something your chosen language can’t provide. It won’t be long until that particular language is replaced by a more flexible successor.

Programming languages do evolve because there’s a continuous search for efficient transformation of human language into machine code. Languages produced usually start with ideas, which conceal hardware

How to Fix a Service Host Program Error

“Svchost.exe” is a service host program that allows several other programs to run together to save memory usage. To give you an idea of how useful this process is, programs run simultaneously using “svchost” was discovered to save around 700 KB as compared to programs that were made to run on their own. The existence of svchost can be attributed to Microsoft’s decision to convert Windows services executable files (“.exe”) into more efficient dynamic-link libraries (“.dll”). Since.dll only functions when there’s an “.exe” program to launch it, they created different types of service hosts to accomplish various tasks.

If you use the task manager or “tasklist.exe”, you may see that there are many svchost processes working all at the same time. This is usually normal, since several programs are distributed in separate service hosts. This separation helps in avoiding massive shut downs. On the downside, this confuses people because the specific applications grouped under each “svchost” are not shown, and the presence of multiple svchost often causes alarm. Computer users also complain of the “exe” file’s high memory usage, and there are times when it uses the full memory capacity of the computer so it slows down or hangs. Otherwise, it

Difference Between Prototype Model and Waterfall Model

Almost always, there are more than one ways of solving a problem. Though the end result might be the same, there are many different paths that can be taken to arrive at the solution. Similarly, each of the software development problems is amenable to a range of different solutions. Creation of a software application can be undertaken in many ways and a development team must adopt a process that is most ideally suited to the nature of the end product.

One of the most traditional approaches to software development is the waterfall model, while a more non conventional one is the prototype model. These software development models are influenced by the manufacturing processes of electronics and hardware industries. In this Buzzle article, I present the difference between prototype model and waterfall model by comparing their features.

Ideally, any company would like to adopt a software development process that makes optimum use of resources and delivers a bug free end product that perfectly meets users expectations and that too, within the set budget, as well as time frame. Before we look at the difference between the two models, let me provide you with a brief overview of how waterfall and prototype models work.


Software Engineering Reason and a Concept

Some decades back, when computer was just born and was completely new thing to people. Very few people could operate them and software was not given very much of emphasis. That time hardware was the most important part that decided the cost of implementation and success rate of the system developed. Very few people were known to programming. Computer programming was very much considered to be an art gifted to few rather than skill of logical thinking. This approach was full of risk and even in most of the cases, the system that was undertaken for development, never met the completion. Soon after that, some emphasis was given towards software development. This started a new era of software development. Slowly, people started giving more importance to software development.

People, who wrote software, hardly followed any methodology, approach or discipline that would lead to a successful implementation of a bug-free and fully functional system. There hardly existed any specific documentation, system design approach and related documents etc. These things were confined to only those who developed hardware systems. Software development plans and designs were confined to only concepts in mind.

Even after number of people jumped in this field, because of the lack

Hyper Threading Technology

We all want our computers to be as speedy as they can be. There are many different ways to increase computer performance through different types of upgrades. Processors have become speedier because of demand and competition. To make processors fast, chipmakers have been creating new CPU architectures to process information and milk every ounce of processing power available. Intel created Hyper-Threading technology as an upgrade in CPU architecture and quietly integrated it into some of their processors for development and testing purposes.

It is based on the idea of simultaneous multi-threading technology (SMT), where multiple physical CPUs are used to process multiple threads at once. As an alternative to using multiple physical processors, Intel created multiple logical processors inside a single physical CPU. Intel recognized that CPUs are inherently inefficient and have lots of computing power that never gets used.

It allows multi-threaded software applications to execute threads in parallel. Consequently, resource utilization provides higher processing throughput. It is basically a more superior form of Super-threading that was first introduced on the Intel Xeon processors and was later added to Pentium 4 processors. This type of threading technology was not present in general-purpose microprocessors.

To boost performance, threading was allowed in the software

Reverse Engineering for Software Debugging

Reverse engineering in computer programming is a skill by which software can be reverted to its basic form, through a series of steps. The software is taken back to its source code level. Pretty often, software are not totally brought down to the source code level or simply cannot, but they are brought down till the assembly language level. Assembly language is a CPU understandable language which is different for different CPU architectures.

Assembly language has certain instructions known as assembly codes which define the flow of a program, the program structure, functions, etc. Everything that the software is capable of doing can be modified or deleted using these codes. Debugging is finding bugs in our software and correcting them, as and when necessary.

Debugging is most often done at development phase, which means when the software is being coded or developed. However, at times, some bugs and errors cannot be corrected at this phase. Some of these bugs can be identified and corrected when the concerned program’s source code is small but it becomes extremely difficult to correct bugs when the code is huge and complex. Reverse engineering can help programmers build better software by eliminating bugs by just understanding its

Website Development Process Explained

A website is a piece of software, which is developed for users on the World Wide Web. Ergo, like any other software, it has to go through a rigorous process. Some of the common models for web development are:

System Development Life Cycle
Prototyping Model
Rapid Application Development Model
UML Based Development Model

However, in most models, the process goes through almost identical phases. In some models two phases may be clubbed together to make one process. In others, it may be divided between two processes.

Steps in Developing a Website

Every company follows standard methodologies, modeling tools, framework, and languages for developing a website. Here are the prime designing steps that any website must go through.

Stage # 1 – Information Gathering
The first phase in this process is information gathering. It is also the most important one, as any miscommunication at this stage, hampers the entire process completely. At this stage, understanding the company and its activities is necessary. It will also include understanding the goals, dreams, target audience, and content of the company. Asking a number of questions at this stage is very important.

Even a small doubt about the exact requirements must be cleared at this stage. This will make sure that

Website Activity Logs Explained

An activity log is important for analyzing the user activities that occur on a website. It provides statistics which prove to be useful in tracking the performance of a website.

What is a Website Activity Log?
These are the records which are maintained, in order to keep track of visitors to a website. The errors that occur in site functionality are also recorded. Measuring the number of visitors to the website is the log’s most important function. These logs are maintained for a month or a quarter. They prove to be useful in understanding the trends in terms of Internet usage. The details that are recorded include the following:

Number of page views
Visiting time and date
Number of downloaded files
Referral source of the visitor

Analyzing the Logs
The analysis of website activity logs is carried out with the help of specialized software. The reports created with the help of these logs provide us with information about the average session length of time, along with other facts and figures like page views, visitor sessions, etc. Other information about the website activity includes the data about most popular landing pages, the passwords beings used, country of origin of visitors, popular referring sites, number

How to Track Website Visitors

The advent of the Internet has ushered instant access and connectivity to individuals, and information at a click of the mouse. This technology has enabled users across the globe to establish contact with one another in an instant, and this could be to promote business or on a personal level. However, along with the excitement of attracting website visitors and profitable website hits is the need to track website visitors. Anonymity comes easily to users of the technology, and so does pseudo identity. This does get to the individual and the online businesses that are part of the online community, at some time or the other.

It hardly matters if you are a journalist, blogger, or any regular user of technology, the need to track visitors is undeniable. You could be a person exploring trends, with the intent of becoming productive, but how can you be safeguarded from the scrupulous attempts to sabotage and misuse the personal information you fed online. Today, with the increase in cybercrime, there is technology and software marketed within a dedicated resource base that ensures the timely tracking and sifting of web traffic.

There are quite a number of ways that are now applicable for tracking trends

10 Tips for Designing Great Web Applications

Here are ten tips for designing a great UI experience:

1. Clear Primary Action

Data entry forms can have two or more buttons to close the form. One button will save the data, another will close the form without saving and another may blank all the fields. There may even be two different buttons to save data, one to submit it and one to save and return later. It is useful for users to know to highlight the primary button which will actually complete their request.

For example, the two save options in bold will complete the form, so they should stand out to the user.

Reset form
Save and Continue
Save and Complete

2. Identify Required Fields

Have you ever tried entering the minimum information into a form, only to be told that you have left some blank? Phone numbers are a good example – why should a company require a phone number as well as an email address?!

Identify which fields are required to complete the form. If these fields are left empty when the form is submitted, then a validation message should be displayed. The usual technique

Computer Programmer Salary

With the advancement of the Information Technology (I.T.) sector, more and more jobs are being created in the field of computers. These jobs are very coveted, because they give the eligible people an opportunity to work for large multi-national organizations and get a premium pay package. One of these coveted jobs is that of a computer programmer, which offers great advancement opportunities within the company one works, apart from a fat paycheck. Before we understand the education requirements and salary details, let us first understand the job description.

Job Description

The main responsibility of computer programmers is to use their skills in preparing accurate programs. The instructions given in the programs enable the computers to operate in a proper way. The programs are written in standard programming languages such as C, C++, JAVA, etc. The computer programmers create new software for a variety of purposes, such as educational software, gaming software, publishing software, etc. They have to think logically at every step involved in the making of the program and are required to keep the main aim behind the program in their mind to avoid any sort of mistakes. The programs are finalized only after going through stringent testing.

Educational Qualifications

A thorough knowledge

How to Become a Computer Programmer

You are reading this web page right now because of millions of lines of programming code, written to make the working of the world wide web, the web browser, and your operating system possible. The virtual world of the Internet and the graphic user interface of your operating system, is a product of programming code.

Becoming a programmer is all about learning to solve problems creatively and analytically. Every advanced electronic device has embedded software inside, which makes its working possible. Right from your digital watch, to your smartphone and your computer, embedded programming code, along with the embedded computer chips, make all the functioning of these devices possible. The unsung but well-paid heroes, who put in their logic, in creation of these software programs, are the programmers.

Becoming a Programmer

Know what you are getting into before deciding to become a programmer. What does it mean to become one? It is about creating an algorithm or a sequence of instructions, for the electronic brain of the computer (computer chip) to follow, in order to get a specific task done. To be a programmer is to think for the computer and make automation possible.

Develop Your Analytical Skills
One of the necessary skills is

Five Ways to Improve Your Job Search

Let’s face it, while sure it’s exciting, looking for a new job is hard work. The job market is flooded and resources when trying to find hidden job vacancies are few and far between. Refining and improving job search is vital when looking to land a great position.

We need to continuously improve on the way we search for jobs. By utlising online job websites to look for jobs you are extending your reach to all possibilities. By improving your job searches, you effectively find scarcer job vacancies and increase your chances of being placed in your dream job.

Here are five ways to improve your job searches.


There are vast recruitment resources available to job seekers. Consider the number of recruitment agencies as well as online job portals available for job seekers to make use of. The numbers are astounding. Before blasting your CV all over the Net, first research the job that you are interested in to make sure that it is what you are looking for. Both online recruitment websites and recruitment agencies need to be carefully selected in order to run better job searches. Remember that these are the companies you are selecting to represent

Computer Technician Job Description

The job of computer technicians offers myriad career opportunities to students and builds a strong platform for their future growth in the IT field. Students and youngsters who love solving and analyzing computer problems have great prospects in this field. Although training and education are extremely important, an inner urge and interest to understand and solve the problems related to computers is the fundamental prerequisite to become a such a technician.

Job Description

Simply stated, the job of these technicians is to solve and troubleshoot the problems related to desktop computers, laptops and different types of computers. When we encounter operational difficulties in the functioning of the computers, we need skilled technicians to fix our problems. While some simple problems can be sorted out on our own, by researching and understanding the functioning of the computers, there can be several problems that require the need of experts.

Their job involves planning, designing and implementation of the computer network.
Testing, installing and connecting various computers in the networks, troubleshooting and diagnosing hardware problems, computer repairs and desktops at home and offices, are all part of the job.
Technicians who are working in the research and development departments of the manufacturers (after some good educational

Programmer Analyst Job Description

If you are in love with computer programming, then the scope of career opportunities in the field of IT jobs is immense. Hailed to be one of the fastest growing sectors in the last two decades, job openings in fields related to information technology have sky rocketed in the last few years, not to mention the competition that has equally increased tremendously. One of the lucrative and decently paid IT jobs is that of programmer analyst.

Job Description

Hailed to be typical information technology professionals, a programmer analyst deals with software development for clients.
Outsourcing software development has become a very popular trend in developed countries. The programmer analyst collects and researches data about the software performance, and then works to improve its efficiency.
He has to be a very good team player when it comes to facilitating training at an individual and team level or in cases of explaining projects to clients.
More than being a computer geek, he must have the ability to handle tasks like a project manager that demands some skills of management.
He is also entitled to lead the team in such a way that all targets and objectives are met within the stipulated time.
He has

Application Developer Job Description

The job description of an application developer comprises various tasks such as writing specifications required for the applications, using programming computer languages and utilizing development tools to design, build, test, implement, and support applications. He works closely with other software professionals such as system analysts and engineers. His role varies as per the industry.

Mobile Application Developer

As the name suggests, he is an expert in developing software and applications that are compatible with mobile phones.
He is responsible for the product life cycle, from concept to development.
He has to be well-versed with cellular technologies and the software platforms.
Common fields of work include working on applications for GPS Mapping, Windows Mobile, Android OS, Apple iPhone OS, and other similar technologies.
He is also responsible to build the front end user interface.

Qualifications Needed: Proficiency in programming languages like C, C++, iOS, Java, Objective-C, etc. is the main qualification. Basic knowledge of interface design and development can be an added advantage.

Courses Offered: Harvard Extension School has a specialized course named Computer Science E-76: Building Mobile Applications, which is an OpenCourseWare, i.e. the lectures are conducted via Internet. Stanford University also has a specialized course in this field, named Developing Mobile Apps with