Use Case --: Delete Service

Use Case <tbd>: Remove Service

for

EIE

Earth Science Information Exchange

Revision History

Name

Date

Reason For Changes

Version

Michael Burnett

11/28/05

Initial Draft

0.1

1.Use Case Identification

1.1.Use Case ID

tbd

1.2.Use Case Name

Delete Service

2.Use Case Definition

A registered provider requests to remove a service from the EIE Extended Service Registry. The service is deleted and the event is logged.

2.1.Actors

• 1.Provider (contact, primary)
• 2.EIE Administrator

2.2.Business Rules

• 1.May be some, dependent on application of domain model.

2.3.Preconditions

• 1.The provider has authenticated with EIE.

2.4.Normal Flow

• 1.Provider (contact) logs on to EIE.
• 2.EIE Authenticates user. (See Alternative Flow step 1)
• 3.Provider (contact) navigates to manage their services.
• 4.Provider (contact) selects the Service to be deleted, then requests to delete the service.
• 5.EIE checks the authorization of the provider. (See Alternative Flow step 1)
• 6.EIE removes the web service implementation from the registry.
• 7.EIE logs the deletion (with requestor, implementation deleted, and timestamp).
• 8.EIE sets a notification of Service Deletion to Service Provider and EIE Administrator. (See Alternate Flow 2)
• 9.EIE triggers a DeleteService event, with appropriate metadata.

2.5.Alternative Flows

1.Provider is not authorized to delete the web service implementation.

• a.EIE logs the security violation.
• b.EIE presents a denied message to the provider.
• c.Use case terminates.

2.Notification cannot be sent to new provider. (Normal Flow step 8)

• a.EIE sends an e-mail message to the EIE administrator notifying problem with provider e-mail
• b.Use case terminates.
• c.EIE Administrator notifies provider directly. Investigates communication failure.

2.6.Postconditions

2.6.1Normal Flow

• 1.Service has been removed from the extended service registry.
• 2.A log entry has been created for the deletion.
• 3.Delete confirmation message sent to provider, EIE Administrator.
• 4.DeleteService event is triggered.

2.6.2Alternate Flow 1

• 1.Message is displayed, indicating a permission violation
• 2.Service Registry has not changed.
• 3.A log entry has been created for the security violation.

2.6.3Alternate Flow 2

• 1.Service Registry has been changed.
• 2.EIE Administrator detects the communication failure.
• 3.EIE Administrator communicates directly with the Provider, informing of the Service deletion.
• 4.EIE Administrator evaluates the communication failure.
• 5.Use Case terminates.

2.8.Special Requirements

• 1.Logging requirements - All log messages must include provider information, service implementation information, operator information, descriptive message, and a timestamp as appropriate.
• 2.Event Management
• 3.Guaranteed delivery of messages to providers?