  The use of Digital Twins in the industry has become a growing trend in recent
years, allowing to improve the lifecycle of any process by taking advantage of
the relationship between the physical and the virtual world. Existing
literature formulates several challenges for building Digital Twins, as well as
some proposals for overcoming them. However, in the vast majority of the cases,
the architectures and technologies presented are strongly bounded to the domain
where the Digital Twins are applied. This article proposes the FIWARE
Ecosystem, combining its catalog of components and its Smart Data Models, as a
solution for the development of any Digital Twin. We also provide a use case to
showcase how to use FIWARE for building Digital Twins through a complete
example of a Parking Digital Twin. We conclude that the FIWARE Ecosystem
constitutes a real reference option for developing DTs in any domain.
