System Analysis and Design
On the feasibility committee, department representatives serve as:

all of the listed here
liaison to their departments
ready sources of information
direct users of the new system

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System Analysis and Design
Sequential or series testing is

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

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