Mantenimiento correctivo del sistema de correspondencia para niños afiliados de la organización comunitaria Cactu.

Abstract

The CACTU correspondence system has been designed as a software based on the Laravel framework to simplify the management of letters between children affiliated with the CACTU organization and their sponsors abroad. Despite its functionalities, the system faces several problems that impact its optimal operability. The main purpose of this Curriculum Integration work is to carry out corrective maintenance on the system to ensure its proper functioning. In this context, the Agile MANTEMA methodology has been adopted, recognized for its efficiency and flexibility in the management of phases and activities related to system maintenance. During this process, specific areas of the system that affect its performance have been identified, implementing technical solutions to address and mitigate existing problems. Additionally, the quality characteristic "Reliability" according to ISO/IEC 25010 standard has been applied to evaluate the effectiveness of these solutions through exhaustive tests and comparative analysis before and after implementing the corrections. Advanced tools such as JMeter and Enlightn were used to collect observations, and interpretations were carried out using the R programming language. The results revealed that the implemented solutions significantly improved system reliability, increasing maturity from 0% to 100%, availability from 84.96% to 93.13%, fault tolerance from 17.40% to 82.10%, and resilience from 38.16% to 80%. By applying the Mann-Whitney U test with a 95% significance level and a margin of error of 5%, it was determined that the mean times between failures after maintenance are higher than those of pre-maintenance. In conclusion, the corrective maintenance performed on the CACTU system had an efficiency level of 88.80% from a reliability perspective.