UC-RINGRID

From EGI Knowledge Base

Use Case title: Remote Instrumentation on the Grid

Short description: A scientist wishes to execute an experiment involving equipment located in a place different than his/her own location. The equipment can be reached only using software, over an IP network.

Actors involved:

• The scientist
• On-site equipment operator;
• Infrastructure and instrument technicians/maintenance engineer;
• Site security manager;
• Input provider (if any);
• Instrument/infrastructure owner.

---

Related Requirement: The experiment must complete successfully.

Pre-conditions:

• The RII must be operational.
• The user has appropriate access rights to the infrastructure.
• When exclusive access is required, or there is a restriction in the number of concurrent users, the infrastructure must offer this functionality.
• It must be possible to verify at all times that the RII is functioning properly, either remotely or with the assistance of a local collaborator.
• It must be possible to define access policies that restrict access to some or all of the experimental process and results.
• If remote control of the instrument is not possible, a local collaborator must be on site.

Steps:

1. If needed, schedule the experiment for a specific timeslot, indicating exclusive access or concurrent access limitations.
2. If needed, prepare the input.
3. If needed, switch on instruments, check and prepare processing infrastructure.
4. If needed, define access policies for the access of additional entities to the experiment and the output produced.
5. If needed, provide the input to the instrument (directly or through local assistant).
6. If needed, calibrate the instrument through modifying its settings and parameters.
7. Execute the experiment performing measurements and control of the instrument.
8. Evaluate the output of the specific measurement.
9. If additional runs are required, jump to step 4 and repeat onwards.
10. If needed, perform clean-up activities such as deleting intermediate data and switching off the instrument and other relevant equipment.

Post-conditions (optional):

• The RII must remain operational, without the security measures being affected in any way.

Project(s) involved (optional):

• Remote Instrumentation in New-generation Grids / RINGrid: Where this use case is coming from
• Deployment Of Remote Instrumentation Infrastructures / DORII: Follows up on RINGrid to deploy a production-level instrumentation infrastructure.