System Analysis and Design
In top down analyis and design

all of the listed here
each succeeding phase is more detailed than the phase before it
each succeeding phase is less detailed than the phase before it
each succeeding phase is as detailed as the phase before it.

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System Analysis and Design
Sequential or series testing is

making sure that the new programs do in fact process certain transactions according to Specifications
is checking the logic of one or more programs in the candidate system
testing changes made in an existing or a new program
running the system with line data by the actual user

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System Analysis and Design
Top-down programming is

a group of related fields
an approach in which the top module is first tested then program modules are added from the highest level to the lowest level
a series or group of components that perform one or more operations of a more complex system
a map of the programmer's view of the data

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