Javier Perez-Capdevila (born February 7, 1963) is a Cuban scientist, mathematician and professor, known for the introduction of the operation mixed mixtures of fuzzy sets, among other theoretical contributions to fuzzy mathematics, as well as to introduce a concept of labor competencies with a method to measure them.

According to Perez-Capdevila, the use of limited options to assess impacts, as well as equal weighting among all Strengths, Opportunities, Weaknesses or Threats.

He proposed an alternative procedure to carry out this analysis, where he addresses the problem of inconsistency that could be generated in expert votes.

[11] He directed the first study of perception of science and technology that was carried out in Cuba, taking as a context the Guantanamo province where he resides, and stood out as a researcher in the first study of evaluation of sustainability in Cuba], in collaboration with several Cuban and Spanish universities.

[12] He has written several books and scientific articles among which "The Age of Knowledge", "Definition, measurement and maps of labor competencies" and "Science and technology from a popular point of view" stand out.