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You may start with a Wikipedia or a commercial website to get basic familiarity with a concept - but don't stop there.
Credible, appropriate sources will add great value to your conceptual design. How do you evaluate credibility? Follow the guidelines provided by your course instructors. So keep in mind RADAR (Rationale, Authority, Date, Accuracy, and Relevance) when researching:
Adapted from: Mandalios, J. (2013). RADAR: An approach for helping students evaluate Internet sources. Journal of Information Science, 39(4), 470–478,