Explain why legacy systems may be critical to the operation of a business.
What will be an ideal response?
Legacy systems may be critical for the successful operation of a business for two
basic reasons
1. They may be an intrinsic part of one or more processes which are
fundamental to the operation of a business. For example, a university has a
student admissions process and systems that support this are critical. They
must be maintained.
2. They may incorporate organizational and business knowledge which is
simply not documented elsewhere. For example, exceptions on student
admissions may simply have been coded directly into the system with no
paper record of these. Without this system, the organization loses valuable
knowledge.
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