System Analysis and Design
The approach used in top-down analysis and design is

to prepare flow charts after programming has been completed
all of the listed here
to identify the top level functions by combining many smaller components into a single entity
to identify a top level function an d then create a hierarchy of lower-level modules and components.

ANSWER DOWNLOAD EXAMIANS APP

System Analysis and Design
Data Definition Language (DDL)

all of the listed here
describes how data are structured in the data base
specifies for the DBMS what is required; the techniques used to process data
determine how data must be structured to produce the user's view

ANSWER DOWNLOAD EXAMIANS APP

System Analysis and Design
Cost-Benefit analysis

evaluates the tangible and non-tangible factors
compares the cost, with the benefits, of introducing a computer-based system
None of these
estimates the hardware and software costs
All of these

ANSWER DOWNLOAD EXAMIANS APP