Digital factories comprise a multi-layered integration of various activities along the factories and product lifecycles. A central aspect of a digital factory is that of enabling the product lifecycle stakeholders to collaborate through the use of software solutions. The digital factory thus expands outside the company boundaries and offers the opportunity to collaborate on business processes affecting the whole supply chain.

This paper discusses an interoperability architecture for digital factories. To this end, it delves into the issue by analysing the key requirements for enabling a scalable factory architecture characterized by access to services, aggregation of data, and orchestration of production processes. Then, the paper revises the state-of-the-art w.r.t. these requirements and proposes an architectural framework conjugating features of both service-oriented and data-sharing architectures. The framework is exemplified through a case study.

数字工厂包括工厂和产品生命周期中各种活动的多层集成。数字工厂的中心方面是使产品生命周期利益相关者能够通过使用软件解决方案进行协作。因此，数字工厂扩展到公司范围之外，并提供了在影响整个供应链的业务流程上进行协作的机会。

本文讨论了数字工厂的互操作性体系结构。为此，它通过分析实现可扩展工厂体系结构的关键需求来深入研究该问题，该体系结构具有对服务的访问，数据的聚合和生产流程的编排。然后，本文修改了这些要求的最新技术，并提出了一个架构框架，将面向服务和数据共享架构的特征结合在一起。通过案例研究来举例说明该框架。