Scanfone, L. and Torres Júnior, N. 2017. Understanding the Innovations Implemented in the Service Operations Systems Through the method PCN Analysis: a multiple case study on customer service assistance. Revista de Ciências da Administração. 1, 1 (May 2017), 75–93. DOI:https://doi.org/10.5007/2175-8077.2017v19n47p75.