Establishing digital twins is a non-trivial endeavour especially when users face significant challenges in creating them from scratch. Ready availability of reusable models, data and tool assets, can help with creation and use of digital twins. A number of digital twin frameworks exist to facilitate creation and use of digital twins. In this paper we propose a digital twin framework to author digital twin assets, create digital twins from reusable assets and make the digital twins available as a service to other users. The proposed framework automates the management of reusable assets, storage, provision of compute infrastructure, communication and monitoring tasks. The users operate at the level of digital twins and delegate rest of the work to the digital twin as a service framework.

翻译：建立数字孪生是一项复杂的工程，尤其当用户从零开始创建时面临重大挑战。可重复使用的模型、数据和工具资产的现成可用性，有助于数字孪生的创建与应用。目前存在多种数字孪生框架以促进数字孪生的构建与使用。本文提出一种数字孪生框架，用于编写数字孪生资产、从可复用资产创建数字孪生，并将数字孪生作为服务提供给其他用户。该框架自动化管理可复用资产、存储、计算基础设施供应、通信及监控任务。用户仅需操作数字孪生层级，其余工作均委托给数字孪生即服务平台。