Abstract: For providing a set of services relating to a semantic model of an infrastructure including assets belonging to different engineering domains, an application server: retrieves, for each engineering domain, asset identifiers respectively associated with assets of the engineering domain and with sets of attributes and for determining asset relationships between the asset identifiers; builds, for each engineering domain, an engineering domain model including assets identifiers that are linked between them based on the asset relationships; determines at least one asset identifier that belongs or is connected to at least two different engineering domain models and linking the at least two different engineering domain models via the at least one asset identifier to build a semantic model of the infrastructure; and provides a set of services for the semantic model of the infrastructure, the services using sets of attributes associated with asset identifiers that belong to different engineering domain models.