The longest method of conversion is

A. direct
B. parallel
C. phased
D. pilot


Changes made periodically to a system, after its implementation, is known as system

A. analysis
B. design
C. development
D. maintenance


The first step in systems Development Life Cycle is

A. database design
B. system design
C. preliminary investigation and analysis
D. graphical user interface


Nassi - schneiderman charts

A. are being replaced by flowcharts
B. often describe over lapping control structures
C. are made up of boxes within boxes
D. both (a) and (c)


Which of the following tools is not used in modeling the new system?

A. decision tables
B. data dictionary
C. data-flow diagrams
D. All of the above