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1. The main goal of system analysis and design is to improve organizational systems, typically through applying software that can help employees accomplish key business tasks more easily and efficiently.

It is not easy to build a system in whatever way seems to be ‘quick and easy’ because these days, system development focuses on system integration which allows hardware and software from different vendors to work together in most applications.

It is increasingly rare for organizations to develop systems in house anymore. This is why these days there are various sources of information system technology. We often consider outsourcing, and then we consider various sources of software.

The main purpose to use system analysis and design methodologies when building a system is to develop and support an organization’s information systems. Additionally it is a widespread methodology for system development in many organizations.

It is a standard process followed in an organization to conduct all the steps necessary to analyze, design, implement and maintain information systems.

The development of information systems often follows a life cycle. For instance, a commercial product, such as the IPhone, follows a life cycle. It is created, tested, and introduced to the market. Its sales increase, peak and decline. Finally the product is removed from the market and is replaced by another version of the IPhone.

Value provided by using a engineering approach:

• System planning and selection:

o Priorities for systems and projects

o Detailed work plan for selected project

• System Analysis:

o Description of current system

o General recommendations on how to fix, enhance or replace current system

• System Design:

o Detailed specifications of all system elements

• System Implementation and operation:

o Code

o Documentation

o Training

8. Prototyping is the part of feasibility...