Carrasco González, Ramón AlbertoBlasco López, María FranciscaGarcía De Madariaga Miranda, JesúsPedreño Santos, AnaHerrera- Viedma, Enrique2024-02-062024-02-062017-09-30Carrasco, R. A., Blasco, M. F., García-Madariaga, J., Pedreño-Santos, A., & Herrera- Viedma, E. (2018). A model to obtain a SERVPERF scale evaluation of the CRM customer complaints: An application to the 4G telecommunications sector. Technological and Economic Development of Economy, 24(4), 1606-16292029-491310.3846/tede.2018.5080https://hdl.handle.net/20.500.14352/99530The relationship between customer churn and their complaints is sufficiently contrasted in the telecom sector. Therefore, a key part of a company’s strategy is the measurement of this dissatisfaction. It is important to conduct periodic surveys on complaints in a standard form like the SERVPERF scale because it enables the organization to benchmark. Many of these complaints are stored in the company’s CRM. Our first aim is to define a model to transform CRM customer complaints, expressed in natural language, into SERVPERF scales. In the proposed model, we use the 2-tuple model, which allows computing this linguistic data without losing information. Our second purpose is to implement a prototype to apply the model in a 4G Company. As a practical conclusion, most complaints in this emerging technology (which still has some deficiencies) are related to technical aspects of the services rather than to staff.engjournal article2029-4921https://journals.vilniustech.lt/index.php/TEDE/article/view/5080open accessD18M15M31L96O32SERVPERFcustomer complaintssentiment analysisFuzzy linguistic model2-tuple modelCRM trouble ticketsEconomía5311.05 Marketing (Comercialización)