Final answer:
The external auditor is the least involved in new systems development, as their role primarily focuses on reviewing business records and regulatory compliance post-implementation rather than participating in the creation process. Correct answer is b. external auditor.
Step-by-step explanation:
The individual least involved in new systems development is typically the external auditor. While the systems analyst plays a major role in system development, designing and improving information systems, the end user provides valuable feedback to ensure the system meets user needs,
And the data librarian is involved in managing data resources, an external auditor's role is more about reviewing the accuracy and integrity of business records and ensuring compliance with laws and regulations after a system is implemented, rather than participating in the creation of new systems. So, the Correct answer is b. external auditor.