Information systems

· Define software. Explain how system software is different from application software. Describe network operating system (NOS). Describe enterprise applications. Differentiate between a horizontal system and a vertical system. Define legacy systems.

· Describe object-oriented analysis (O-O) and objects. Define class and properties. Define methods. Define message.

· Define structured analysis and systems analysis life cycle (SDLC). Explain why structured analysis is called a process-centered technique.

· List basic guidelines for systems development. Why is it important to include users in the development process? Suggest other ways in which involving users can enhance successful development.

· What is a Prototyping Model? What steps are involved in it? What are its potential downsides?