Posts Tagged ‘Understanding Software’

Software development means, creating software to fulfill the specific needs of the customers. Depending upon their requirements, the software outsourcing firms develop customized software solutions. The client requirement can be an open source software or program for personal use.

Software development is an extension of computer programming. In programming, programmers design and write, test and troubleshoot, and maintain the source code of the computer programs. The source code is written in programming language. Software development extends beyond programming and it includes research and development, modification for re-use, re-engineering, maintenance and any other activity, which creates desired software product.

The software outsourcing firm can follow a structured, engineering based approach or an incremental approach depending upon the requirements of the project. However, most software development methodologies adopted by the software development firms, adopt an approach which is a mix of below mentioned stages:

• Understanding and analyzing the specific needs/problems of the customer.
• Devising a strategic plan or design for the software-based solution.
• Implementation (coding) of the software.
• Test running of the software.
• Deployment.
• Maintenance and bug fixing (quality check)

These all stages are combined together to create a software development life cycle or SDLC. Depending upon the specific needs of the clients the software outsourcing firm creates and delivers a specific software solution. This involves development of software at above mentioned stages, in different orders. The development process may devote more or less to any particular stage depending upon the requirements of the project.

The development software firm can adopt a “Waterfall” (structured) or an extreme approach. The extreme approach lays more emphasis on coding and development of automated tests and spends less time on planning and documentation. A more structured approach like the Waterfall methodology analyzes the risks and develops a detailed plan before the beginning of the coding phase of the software development cycle. This prevents design changes and re-coding in later stages of project.

Depending upon the complexity of the software requirements of the customers, software outsourcing company can select and follow the methodologies available to them. Waterfall approach is the best option when the developer understands the requirement completely and it is possible to plan a solution well ahead of time. If however, the project appears to be a complex one and is prone to risks then the best option is to adopt an extreme approach, like an incremental methodology. It is a step-by-step process and minimizes the risks associated with such project. It is advisable to adopt extreme approach when a software problem does allow enough space for proper planning and development of the project. The present day software outsourcing company has at its disposal, different methodologies to develop software solutions for its clients. Waterfall, Prototyping, Incremental, Spiral and Rapid Application Development (RAD) are some of the widely used methodologies by the modern day software outsourcing firm.

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It is a systematization of the process of software development to ensure the best solution most economically. Its goal is to produce high quality software at low rate.

Software Engineering is the application of a systematic, disciplined, quantifiable approach to the development, operation and maintenance of software. A typical software development project will need to go through the phase of Analysis, Design, Programming, Testing and Implementation. Software Project Management (SPM), Software Quality Assurance (SQA) and the use of Computer aided Software Engineering (CASE) would run parallel with the other phases and finally comes the maintenance phase. It is always said that more than 80% of the costs go towards maintenance of the software.

Software Methodology

It is a step by step plan for implementing a method using certain tools and procedures. It often describes the entry criteria, exit criteria and checkpoint for each of the activities or components in software engineering. Some of the popular methodologies today are based on structure techniques or information engineering or object-oriented techniques. Methodology selection depends on the nature of the project, the type of application, the tools proposed to be used and the kind of controls and documentation that would be required.

Waterfall, Prototyping, Spiral, Rapid Application, Stepwise Refinement, Industrial and military standards, Assembly by reuse, Application generation, Continuous transformation and Knowledge based software automation are some of the popular methodologies.

What factors would influence the choice of model for software development?

It depends on the nature and size of application, whether it is an in-house development or development through an external agency, the availability of various tools and resources, time frame and budget, etc.

Who is Software Engineer?

A software engineer is someone who applied engineering principles in the co-operative development of software. A good software engineer should not only generate computer programs but also learn the skills to produce good documentation, database and operational procedures for the computer system. He should be well defined about the components or modules of software engineering.

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Software is the essential part of a computer that stores and processes all encoded information or instructions on PC. They are the responsible for the proper functioning of PC by making them fit for use. Now, what is the software development and software engineering?

Difference

The term software development clearly means the creation of all such softwares that actually make our work easier while software engineering starts when the work of software development ends. So, they both go hand in hand when it comes to the implementation of software. For laymen it may sound same but in practical they are interchangeable and closely interrelated. For further understanding, software is created when you want a particular work to get performed say for example design database software that will keep track of your bird watching hobby, and then you’ll just need software development whereas, for making your program with multiple functions, engineering will be needed.

Role of Software Engineering

People with specialized knowledge of software applications are called ‘Software engineers’. They implement and design software applications through the use of many mediums. Further, these software applications will then be used for a variety of purposes from business practices to entertainment purposes. In fact, these developed applications allow users to make their work functional and productive. There are many software applications available in the market such as language applications, office applications, entertainment packages, and applications for education.

Future in software Engineering

Generally, the cost of recruiting a software developer is comparatively less than recruiting a software engineer as their nature of work is complexes than creation of actual software. With the passing time, the demand of more advanced softwares, the future of software industry is growing each year. More and more businesses are demanding their own software developed for them that is specific to what they do and what they want the software to do.

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