System Analysis and Design
The records in a file or magnetic tape

can only be accessed serially
have to be arranged in a key sequence
cannot be transferred to a disk file
are meant for backup

ANSWER DOWNLOAD EXAMIANS APP

System Analysis and Design
In a Decision tree

the root is drawn on the left and is the starting point on the decision sequence
the branch, to be followed, depends on the conditions and decisions, to be made
all of the listed here
the nodes represent the conditions, with the right wise of tree listing the actions to be taken

ANSWER DOWNLOAD EXAMIANS APP

System Analysis and Design
System prototyping helps the designer in

making the programmers understand how the system will function.
communicating to the user, quickly, how the system, when developed, will look like and get a feedback.
all of the listed here
giving a demo of the software, to the system manager to whom he reports

ANSWER DOWNLOAD EXAMIANS APP