Providers and Consumers

You connect to providers using connection strings. For example, if an Oracle database is a provider, to connect to its services, you might need:

  • The IP address of the machine
  • The SID
  • The TCP port

These three pieces of information would comprise the connection strings required by a consumer, which are needed to connect to a service offered by that provider. For example, an Oracle connection string could contain the following information:

  • IP addresses: 1.1.1.1, 2.2.2.2
  • Port: 1521
  • SID: abcd

A consumer is aware of at least one connection string for a provider, and this connection string is found in a known location, such as a configuration document, a database table, Windows registry, and so on. By searching through these locations, dependencies between consumers and providers can be discovered.

If the connection strings of a provider are found in a certain configuration document, then the provider and the container of the configuration document are connected with a consumer-provider relationship.

The process of discovering consumer-provider dependencies then becomes straightforward: Connection strings from the provider are searched for in the consumer's configuration documents, and the search results contain all configuration documents owned by the consumers of the specified provider.

For more information, see Define Dependencies.