UseCase: UploadUserCode

PrimaryActor:

Astronomer

---

EndResult:

An astrogrid user with the appropriate permissions can upload and run user code on grid compute resources.

---

OtherActors:

type here

---

PreConditions:

Inside the DetermineProgram use case, the user can choose 'user code' as a source for a program or model. This code can be uploaded from the user's computer and run on the grid, or the user can run the code on the machine where it is stored.

---

FlowOfEvents:

1. The Run Program Façade accesses the User Code Façade.

2. User can choose to run the code from the machine where it is stored or to run the code on a grid compute resource.

3a. If user chooses to run the code on his or her computer:

• Data is transferred to the user's computer

• Code runs there.

3b. If user chooses to upload code to a grid resource:

• Use case proceeds to NegotiateAccessToResource.

4. Results are returned to MySpace via MySpaceStoreResults.

---

PostCondition:

type here

---

BasicAssumptions:

type here

---

AlternativeFlows:

type here

---

Discussion:

type here

---

Links to ScienceProblems:

type here

---

KeyReferences:

type here

---

Please see the sequence diagram for this case.

---

---

GoodStyle: Please add comments below. This area should be used for refinement of the above document. If you want to ask questions or start a dialogue with the author, please use (or create) a topic in the Use Cases Forum.
Author: Once the refinements here and comments in the forum die down, perhaps you could rewrite the problem, incorporating the comments and refinements.

---

-- NicholasWalton - 07 Jun 2002