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The sector of services provided to companies is in a constant search for continuous improvement mainly due to problems presented in the performance of processes, quality of service and time management. The latter is a fundamental piece since the shortest time is always sought in hiring new collaborators to have greater flexibility and maintain a good relationship with customers, achieving a better competitive advantage. Therefore, the integrated Lean-BPM service model is proposed, which aims to reduce the lead time of new employees that is currently 6.22 days generated by poor time management. The mentioned model uses the following tools: standardized work, visual management, business process management and Kanban board, which are adjusted to the identified problems according to the literature review. After applying the method, a 12.88 % reduction was obtained to maintain the efficiency of the integrated model, and the improvement was confirmed by simulation, and similar results were obtained.

Discussions about Industry 4.0 and its relationship with supply chains are a topic that has been growing over tim e. In theory, this new technological revolution can transform industries and their business models entirely as there are new ways to o ffer value to customers. Developing new technologies will allow sup p ly chains, mainly in manufacturing companies, to change their paradigms, achieving a competitive advantage over others. This article's main objective is to investigate the current state of Industry 4.0 in supply chains, exploring the technologies that enable it, the existing uses in the processes, its benefits, and its challenges. For this purpose, a systematic literature review was conducted, in addition to bibliometric analysis.

All of the companies in the Retail sector, regardless of their size and age, have suffered different problems related to their stock and one solution is the use of radio frequency identification (RFID). Therefore, tracking and understanding the development of the literature on RFID is a key factor in the improvement of supply chain management (SCM). The general objective of this bibliographic review is to understand the behavior of the researches about the implementation of RFID in the Scopus database. In order to achieve the objective, the database will be filtered and subsequently analyzed using the VOSviewer software and bibliometrix software. In addition, the results shows the countries with the most publication as well as authors, journals and keywords.