Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Easing ÐApp Interaction for Non-Blockchain Users from a Conceptual Modelling Approach

Version 1 : Received: 15 May 2020 / Approved: 16 May 2020 / Online: 16 May 2020 (16:29:58 CEST)

A peer-reviewed article of this Preprint also exists.

Teruel, M.A.; Trujillo, J. Easing ĐApp Interaction for Non-Blockchain Users from a Conceptual Modelling Approach. Appl. Sci. 2020, 10, 4280. Teruel, M.A.; Trujillo, J. Easing ĐApp Interaction for Non-Blockchain Users from a Conceptual Modelling Approach. Appl. Sci. 2020, 10, 4280.

Abstract

Blockchain decentralized applications (ÐApps) are applications which run on Blockchains nodes. Thus, in order to interact directly with this sort of applications, users need to have a blockchain address, wallet and knowledge about how to make transactions in order to interact with ÐApps. Therefore, the knowledge required to use a ÐApp can easily make users to desist when trying to interact with them. In order to tackle this issue, we propose a software architecture that will be located in the middle of the user and the ÐApp, thus making users initially unaware that they are interacting with a ÐApp. This is achieved by analyzing the relationship between ÐApps and Apps by using UML modelling. Next, based in the previous analysis, we created a middleware for users to interact with a ÐApp in the same manner the do with a traditional web app, i.e. by using usernames, passwords and UI elements instead of addresses, private keys or transactions. Finally, in order to put the developed middleware into practice, we developed a ÐApp that makes use of it. This ÐApp registers the time control of workers from companies by using Blockchain to store the data in a secure and non-modifiable manner.

Keywords

Blockchain; ÐApp; UML; conceptual modelling; Ethereum; Smart Contract; Solidity; Quorum; middleware; Clockchain

Subject

Computer Science and Mathematics, Computer Science

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