【Author】
Teruel, Miguel A.; Trujillo, Juan
【Source】APPLIED SCIENCES-BASEL
【Abstract】Featured Application Easing the interaction of non-blockchain users with a decentralized application (App) through a middleware created by using conceptual modeling in UML (Universal Modeling Language). Blockchain decentralized applications (App's) are applications which run on blockchains nodes. Thus, to interact directly with this sort of applications, users need to have a blockchain address, wallet, and knowledge about how to make transactions to interact with App's. Therefore, the knowledge required to use a App can easily make users to desist when trying to interact with them. To tackle this issue, we propose a software architecture that will be in the middle of the user and the App, thus making users initially unaware of the fact that they are interacting with a App. This is achieved by analyzing the relationship between Apps and Apps by using UML modelling. Next, based on the previous analysis, we created a middleware for users to interact with a App in the same manner they do with a traditional web app, i.e., by using usernames, passwords and user interface elements instead of addresses, private keys or transactions. To put the developed middleware into practice, we developed a App that makes use of it. This App registers the time control of workers from companies by using blockchain to store the data in a secure and non-modifiable manner. Finally, we performed an experiment, thus demonstrating that a App that implements the proposed middleware would improve its usability for users with no experience with blockchain.
【Keywords】blockchain; App; UML; conceptual modelling; ethereum; smart contract; solidity; quorum; middleware; clockchain
评论