Implementation of a SCADA system in a self-composting machineThe automation of industrial processes is a current trend that seeks to improve the quality of the finished product, implementing control techniques that minimize errors that may occur in the process. To achieve this, it is sought to have a remote monitoring system, where the system can be viewed in its entirety, interact with it, access historical data, and that can alert the user when a problem occurs, all in real time.In this document, the implementation of a Supervision, Control and Data Acquisition (SCADA) software in a self-composting machine is presented. First, information was obtained to define the scope of work and prepare a proposal. Second, the necessary modifications were made so that the selected SCADA system can be implemented in the machine. After this, the monitoring screens for the user interface were developed, as well as the creation of alarms and historical data. Finally, the final tests were carried out for its continued use.The final system is characterized by solving a real requirement, in order to improve the controlled process, and that end users can obtain information from the machine and the system remotely.

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Smart contract technology is reshaping conventional industry and business processes. Being embedded in blockchains, smart contracts enable the contractual terms of an agreement to be enforced automatically without the intervention of a trusted third party. As a result, smart contracts can cut down administration and save services costs, improve the efficiency of business processes and reduce the risks. Although smart contracts are promising to drive the new wave of innovation in business processes, there are a number of challenges to be tackled. This paper presents a survey on smart contracts. We first introduce blockchains and smart contracts. We then present the challenges in smart contracts as well as recent technical advances. We also compare typical smart contract platforms and give a categorization of smart contract applications along with some representative examples.

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The recent advances in information and communication technology (ICT) have promoted the evolution of conventional computer-aided manufacturing industry to smart datadriven manufacturing.