Blockchain-Based Collaborative Development of Application Deployment Models.

The automation of application deployment is vital today as the manual alternative is too slow and error-prone. For this reason, many technologies for deploying applications automatically based on deployment models have been developed. However, in many scenarios, these models have to be created in collaborative processes involving multiple participants that belong to independent organizations. However, the potential competing interests of these organizations hinder the degree of trust they have in each other. Thus, without a guarantee of accountability, iterative collaborative deployment modeling is not possible in such domains. In this paper, we propose a decentralized deployment modeling approach that achieves accountability by utilizing public blockchains and decentralized storage systems to store intermediate states of the collaborative deployment model. The approach guarantees integrity of deployment models and allows obtaining the history of changes they went through while ensuring participants' authenticity.