Resultados de búsqueda para Solidity

A pesar del interés que despierta la tecnología blockchain y los contratos inteligentes, su complejidad y curva de aprendizaje supone un problema que ralentiza su adopción. Con la intención de contribuir a minimizar este problema, en la última edición de estas jornadas presentábamos una propuesta metodológica y tecnológica para el uso de modelos en el ámbito de los contratos inteligentes. El objetivo de este trabajo es presentar uno de los componentes tecnológicos que hemos desarrollado para implementar esta propuesta: un lenguaje de bloques para la especificación y representación gráfica de contratos inteligentes.

Blockchain decentralized applications (DApp+IBk-s) are applications which run on blockchains nodes. Thus, to interact directly with this sort of applica-tions, users need to have a blockchain address, wallet, and knowledge about how to make transactions to interact with DApp+IBk-s. Therefore, the knowledge required to use a DApp can easily make users to desist when trying to interact with them. To tackle this issue, we propose a software ar-chitecture that will be in the middle of the user and the DApp, thus making users initially unaware of the fact that they are interacting with a DApp. This is achieved by analyzing the relationship between DApps and Apps by using UML modelling. Next, based on the previous analysis, we created a middleware for users to interact with a DApp in the same manner they do with a traditional web app, i.e., by using usernames, passwords and user in-terface elements instead of addresses, private keys or transactions. To put the developed middleware into practice, we developed a DApp that makes use of it. This DApp registers the time control of workers from companies by using blockchain to store the data in a secure and non-modifiable man-ner. Finally, we performed an experiment, thus demonstrating that a DApp that implements the proposed middleware would improve its usability for users with no experience with blockchain.