> For the complete documentation index, see [llms.txt](https://framework.ishare.eu/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://framework.ishare.eu/detailed-descriptions/functional/primary-use-cases/1.-m2m-service-provision.md).
# 1. M2M service provision
In use case 1, a service is provided by the Service Provider to the Machine Service Consumer.
### Roles
As no delegation takes place, the legal entity fulfilling the Entitled Party role also fulfils the Service Consumer role.
### Depiction
#### **Legal relations**
#### **Use case interaction**
### Description
**It is a prerequisite of this use case that:**
* The Service Provider has and manages its own entitlement information indicating what Entitled Parties are entitled to what (parts of) services\*;
* The Service Consumer can authenticate the Service Provider.
* The Service Provider is able to authenticate the Service Consumer.
* In this use case, the Entitled Party is also the Service Consumer.
\*The Service Provider can outsource this function to a third party
**The use case consists of the following steps:**
1. The Machine Service Consumer requests a service from the Service Provider.
2. The Service Provider authenticates the Machine Service Consumer and validates the iSHARE adherence of the Service Consumer;
3. The Service Provider authorises the Machine Service Consumer of the Service Consumer based on the entitlement information registered with the Service Provider;
4. The Service Provider executes the requested service;
5. The Service Provider provides the service result to the Machine Service Consumer.
### Sequence diagram
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