This paper analyzes some issues derived from the social turn in the philosophy of science. The point of departure is the transformation of science into technoscience. If technoscience is conceived of as a system of human actions, then it requires the consideration of both epistemological and methodological parameters and the analysis of ethical, political, economic, and social aspects. This involves the necessity of assessing these parameters as a whole, by using a broad notion of value, namely, a pragmatic notion of value. Accordingly, value will henceforth be a “pattern-guideline of solving problems.” It leads to considering the philosophy of science as an axiology of technoscience. The following issues are developed: i) science as a value-laden enterprise; ii) value assessment as a task in the philosophy of science, which means justifying some special methodologies of assessment; iii) the proposal of specific criteria for establishing social policies of science and technology.