Pattern 40 (Configurable Unallocated Work Item Visibility)
The ability to configure the visibility of unallocated work items by process participants.
The Process Worker can only see the unallocated work items that may be subsequently allocated to them or they can volunteer to undertake.
The pattern denotes the ability of a PAIS to limit the visibility of unallocated work items - either to potential resources to which they may subsequently be offered or allocated, or to completely shield knowledge of created but not yet allocated work items from all resources.
The ability to view unallocated work items is usually implemented as a configurable option on a per-user basis. Of most interest is the ability to view work items in an offered state.
There are no specific context conditions associated with this pattern.
None of the offering examined support this pattern. It is included in this taxonomy as it constitutes a useful variation of the Configurable Allocated Work Item Visibility pattern.
An offering achieves full support if it satisfies the description of the pattern.
To achieve a + rating (direct support) or a +/- rating (partial support) the product should satisfy the corresponding evaluation criterion of the pattern. Otherwise a - rating (no support) is assigned.
|Websphere MQ Workflow||3.4||-||Not supported|
|Oracle BPEL||10.1.2||-||Oracle BPEL PM offers no support for this pattern, since any user can see all unallocated work items and there is no option to limit the visibility of unallocated items|
|jBPM||3.1.4||-||jBPM does not support this pattern.|
|OpenWFE||1.7.3||+/-||OpenWFE provides limited support for this pattern. When a user is defined, the privileges they have to access different stores are specified. "read" privileges to a user for a store implies that they wll be able to see both unallocated and started (i.e. allocated) work items in that store. This configuration can only be done by the workflow administrator. It is not possible to configure the visibility so that only unallocated (and not started) items get visible. Hence the degree of support is considered to be partial.|
|Enhydra Shark||2||-||Enhydra Shark does not support this pattern.|
Summary of Evaluation