13-9
System analysis: Requires an organization to analyze problems it will try to solve
with information systems. It includes defining a problem, identifying its causes,
specifying the solution, and identifying information requirements that the system
Define information requirements and explain why they are difficult to determine
correctly.
Information requirements involve identifying who needs what information, where,
when, and how. They define the objectives of the new or modified system and contain
a detailed description of the functions the new system must perform. Gathering
Explain why the testing stage of systems development is so important. Name and
describe the three stages of testing for an information system.
Testing is critical to the success of a system because it is the only way to ascertain
whether the system will produce the right results. Three stages of information system
testing are:
• Unit testing: Refers to separately testing or checking the individual programs.
ensure it meets established requirements and that it’s ready for installation.
Describe the role of programming, conversion, production, and maintenance in
systems development.
• Programming: Specifications that were prepared during the design stage are
translated into software program code.