  The collaboration of the real world and the virtual world, known as Digital
Twin, has become a trend with numerous successful use cases. However, there are
challenges mentioned in the literature that must be addressed. One of the most
important issues is the difficulty of collaboration of Digital Twins due to the
lack of standardization in their implementation. This article continues a
previous work that proposed a generic architecture based on the FIWARE
components to build Digital Twins in any field. Our work proposes the use of
Linked Open Data as a mechanism to facilitate the communication of Digital
Twins. We validate our proposal with a use case of an urban Digital Twin that
collaborates with a parking Digital Twin. We conclude that Linked Open Data in
combination with the FIWARE ecosystem is a real reference option to deploy
Digital Twins and to enable the collaboration between Digital Twins.
