"Disciplined inquiry" means carefully examining something by asking questions, conducting research, and following a structured approach to learn more and find answers. Full definition
For, in disciplined inquiry responsible men construct a world in truth. (religion-online.org)
While both can result from disciplined inquiry, they create very different texts. (ciera.org)
A number of social studies education researchers have explored efforts to leverage digitized primary source documents in this form of disciplined inquiry in history (e.g., Hicks, Doolittle & Lee, 2004; Friedman, 2006, Saye & Brush, 1999, 2004, 2006). (citejournal.org)