Question Details:

I need help with answering a question on why information systems need to be replaced, I need to understand the whole concept behind information sysytems.

Answer:

"The term information system sometimes refers to a system of persons, data records and activities that process the data and information in an organization, and it includes the organization's manual and automated processes. Computer-based information systems are the field of study for information technology, elements of which are sometimes called an "information system" as well, a usage some consider to be incorrect." (Wikipedia) More here.

We do not have more information about this concept but maybe because they need to be replaced to improve the process.