One of the most important aspects of Evandro Agazzi's operationalism lies in his attempt to wed the main idea of operationalism with a perspectival view of scientific knowledge. In the Sect. 1 of this paper I argue that this connection is essential to understanding Agazzi's substantial contribution to the philosophy of science. In the Sect. 2, I briefly compare Agazzi's and Searle's treatment of Turing 's test, to show how important the notion of perspectival knowledge is for Agazzi . In the last section of my paper, even though I essentially agree with Agazzi's operationalism, I raise some doubts concerning the relationship between theory and experiment and the connection between science and technique, and I propose the modifications that I believe are needed to make Agazzi's operationalism more consistent.