This is an overview to the SWIM service implementations registered by the service providers. A service implementation is a deployed instance of a service that enables the execution of an action on a system (e.g. record a flight plan) or the access to information (e.g. weather forecast). It is provided by an organization that supports it committing to a certain level of quality (e.g. availability) and states the conditions that regulate the relationship with the consumers. It is enabled by software installed on a computer reachable remotely over a network by other computers (that host applications) via a technical interface that establishes the requirements on how to interact with it.