XNET Ownership R/G/D Scenarios
Request of Ownership Scenarios
The following describes system behavior in different scenarios for Requests of ownership based on operator acceptance or denial, and what happens if a request/transfer times out.
Let’s assume there are three stations:
- A station, owner of a set of roots of ownership
- B and C stations requesting ownership
The following scenarios may occur:
Request of Ownership Scenarios | |
Scenario | Result |
B requests ownership to A. A gives ownership within 120 seconds. | B becomes the owner. On A, the dialog box closes. |
B requests ownership to A. The timeout to accept/deny ownership expires. | B becomes the owner. On A, the dialog box remains open, and the operator can only click the Close button. |
B requests ownership to A. The timeout to accept/deny ownership expires. B requests a different ownership to A. | B becomes the owner of the first root of ownership. In the dialog box on A, the Accept Selection and Deny All buttons become available so that the operator can proceed with the request to transfer the second ownership. |
B requests ownership to A. A denies ownership. | A remains the owner. On A, the dialog box closes. |
B repeatedly requests ownership of the same root to A. A may accept/deny ownership or let the timeout expire. | One of the following occurs:
In all of the cases, the dialog box contains a single Requested Transfer item (despite repeated requests). |
B requests many roots of ownership in a single request to A. A may accept/deny ownership or let the timeout expire. | One of the following occurs:
In all of the cases, the dialog box contains all the Requested Transfer items. |
B requests many roots of ownership in a single request to A. C requests to A the same roots of ownership requested by B and possibly more. A may accept/deny ownership or let the timeout expire. | On A, two dialog boxes appear: one for B and the other for C. Assuming that the operator on A is working on the dialog box from B, s/he may accept, deny, or allow timeout of ownership requests. Based on actions on A, the C dialog box updates its Requested Transfer items accordingly, but remains open (the operator can click the Close button.) |
B requests many roots of ownership in a single request to A. C requests many roots of ownership to in a single request A (which are not the same requested by B). A may accept/deny ownership or let the timeout expire. | On A, two dialog boxes appear: one for B and the other for C. Assuming that the operator on A is working on the dialog box from B, s/he may accept, deny, or allow timeout of ownership requests. The C dialog box does not update its Requested Transfer items and remains open (the operator can click the Close button.) |
B requests ownership to A. A closes the client application. | Ownership is reset and B becomes the new owner immediately upon request. |
B requests ownership to A. For some reason, the dialog box on A does not display. This condition continues until the timeout expiration. | After a timeout of 5 minutes, ownership is automatically transferred to B. |
B requests ownership to A. For some reason, the dialog box on A does not display. This condition ends before the timeout expiration (for example, switchover completed).
| Ownership is automatically transferred to B as soon as the condition ends. |
The client application fails on A. | After a timeout of 5 minutes, ownership is automatically transferred to B. |
B requests ownership to A. A client application crashes before displaying the request. | Ownership is reset and B becomes the new owner immediately upon request. |
B requests ownership to A. A client application crashes after displaying the request. | Ownership is reset and B becomes the new owner upon the crash. |
B requests ownership to A. The dialog box displays on A. B client application crashes. A either accepts the transfer or lets the timeout expire. | The root of ownership no longer has an owner. |
B requests ownership to A. The dialog box displays on A. B client application crashes. A denies ownership. | A remains the owner. |
Transfer of Ownership Scenarios
The following describes system behavior in different scenarios for Transfers of ownership based on operator acceptance or denial, and what happens if a request/transfer times out.
Let’s assume there are three stations:
- A station, owner of a set of roots of ownership that it wants to transfer
- B and C stations, receiving ownership
The following scenarios may occur:
Transfer of Ownership Scenarios | |
Scenario | Result |
A transfers ownership to B. B accepts within 120 seconds. | B becomes the owner. The dialog box closes on B. |
A transfers ownership to B. B denies the transfer. | A remains the owner. The dialog box closes. |
A transfers ownership to B. The timeout to accept the request expires. | A remains the owner. The dialog box remains visible and the operator can only click the Close button. |
A transfers ownership of the same panel to B and C. | The dialog box displays both on B and C. The first station that accepts the transfer becomes the owner. The status of the request in the dialog box of the second client station becomes |
A transfers ownership to B. B requests ownership to A. | The dialog box displays both on A and B. If A accepts the request or B accepts the transfer, B becomes the owner. The status of the request in the dialog box of the station that did not accept the request or transfer becomes |
A transfers ownership to B. C requests ownership to A. | The dialog box displays both on A and B. If B accepts the transfer, it becomes the new owner. Otherwise, if A accepts the request, C becomes the new owner. The status of the request in the dialog box of the station that did not accept the request or transfer becomes |
A transfers ownership to B. A client application crashes or closes before B accepts, denies or the timeout expires. | The root of ownership no longer has an owner. The dialog box displays on B, and the status of the transfer becomes |
A transfers ownership to B. B crashes or closes the client application. | A remains the owner. |
A transfers ownership to B. B performs a switchover. | The dialog box closes on B, while A remains the owner. |
A Transfers ownership of a panel to B. A Transfers ownership of another panel to B. | The dialog box on B displays a list of all of the items for transfer. |
A transfers ownership of a panel to B. The timeout for B expires. A transfers ownership of another panel to B. | In the dialog box on B, the status of the first request becomes The second request is appended to the end of the dialog box list. |
A transfers ownership of a panel to B. Before the timeout for B expires, A transfers ownership of another panel to B. | In the dialog box on B, the status of the requests becomes |
