The International Symposium on Design and Diagnostics of Electronic Circuits and Systems (DDECS) provides a forum for exchanging ideas, discussing research results, and presenting practical applications in the areas of design, test, security and diagnosis of electronic digital and analog circuits and systems. The 27th edition of the DDECS Symposium will be held in Kielce (Poland), which is located in the Świętokrzyskie Mountains, one of the oldest mountain range in Europe. The symposium is organized by Kielce University of Technology and technically co-sponsored by IEEE, IEEE Poland Section and CEDA.