Motivating Web and Blockchain Application Modeling

Blockchain technology was developed initially for the creation of a crypto-currency. Now it is being exploited for several other applications, such as health, agriculture, IoT and education. Adding blockchain technology to existing systems requires a careful planning of integration between the different environments and technologies. Building blockchain-based applications enables a software which is executed in a decentralized, trustless, transparent and tamper-proof environment, generally called decentralized applications. This article aims to motivate systems modeling activity, specifically between web and blockchain applications. This is an initial study, and as preliminary results we suggest the use of sequence diagrams for modeling the integration between technologies.