# Package io.vertx.servicediscovery.spi

- Interface Summary
  Interface | Description
  --- | ---
  ServiceDiscoveryBackend | By default the service discovery uses a distributed map to store the records.
  ServiceExporter | The service exporter allows integrate other discovery technologies with the Vert.x service discovery.
  ServiceImporter | The service importer allows integrate other discovery technologies with the Vert.x service discovery.
  ServicePublisher | The publisher is used by the importer to publish or unpublish records.
  ServiceType | Represents a service type.