Scope of VariablesAll variables in a program may not be accessible at all locations in that program. This depends on where you have declared a variable.The...

Digital signaturesA digital signature or digital signature scheme is a mathematical scheme for demonstrating the authenticity of a digital message or...

NETWORK SECURITYNetwork security consists of the provisions and policies adopted by a network administrator to prevent and monitor unauthorized access,...

HISTORY OF HTMLIn 1980, physicist Tim-Berners-Lee, a contractor at CERN proposed internet- based hypertext system.It was formally defined by Internet...

Computer-aided Software Engineering (CASE) ToolsComputer-aided systems engineering (CASE) tools are the software programs that help the development team...

Different Approaches to Improving Information Systems DevelopmentSeveral different approaches have been developed in the continuous effort to improve...

Developing Information Systems and System Development Life Cycle (SDLC)Most organizations use a standard set of steps, called a systems development methodology...

Preparing Career as a Systems AnalystSystem analysts are the key individuals in the information system development process. To succeed as a system analyst,...

Information System Stakeholders, Vendors and ConsultantsInformation System StakeholdersA stakeholder is any person who has an interest in an existing...

Systems Analysis and DesignSystem analysis and design is a complex, challenging, and simulating organizational process that a team of business and systems...

What is an Information System?In a simplest sense, a system that provides information to people in an organization is called information system (IS).Information...

What is System?A system is a collection of components (subsystems) that work together to realize some objective. For example, the library system contains...