Workflow triggered more than stated in condition

[Jerry_Lan]

Dear all,

Why does workflow trigger more than expected? Here is my workflow trigger condition:

or(
AND( [_THISROW_BEFORE].[PUB To Next User]<> [_THISROW_AFTER].[PUB To Next User], ISNOTBLANK([PUB To Next User]),[PUB To Next User]<>“Draft”),
AND( [_THISROW_BEFORE].[Ace To Next User]<> [_THISROW_AFTER].[Ace To Next User], ISNOTBLANK([Ace To Next User]),[Ace To Next User]<>“Draft”),
AND( [_THISROW_BEFORE].[PUB To Next User 2]<> [_THISROW_AFTER].[PUB To Next User 2], ISNOTBLANK([PUB To Next User 2]),[PUB To Next User 2]<>“Draft”),
AND( [_THISROW_BEFORE].[PUB Ops To Next User]<> [_THISROW_AFTER].[PUB Ops To Next User], ISNOTBLANK([PUB Ops To Next User]),[PUB Ops To Next User]<>“Draft”)
)

The user clicked on an inline table which brings them to a detail view with some editable field. The workflow should trigger only if one of the above columns is edited (shown by <>) . In this latest case, The user went in and did not make any change.It therefore should not trigger but it was triggered.

Thanks
-j- erry