Hewlett-packard Development Company, L.p.

Brian A Volkoff

Shell Sterling Simpson

Ward Scott Foster

Kenneth Lee Oakeson

A bidding service may be used to receive bid information to complete a job request, from processors coupled to a job ticket service center. The processors submit bids in response to posting of job ticket notices at the service center. A work flow controller may post the job ticket notices after receipt of the job request. The job ticket notice may include specific tasks or branches that must be completed to complete the job request. The job ticket notice may include descriptions of specific branches and their interrelationships in sufficient detail to allow the processors to bid for completion of the branches. The bidding service may select bids from the processors based on set criteria. For example, the job request may specify minimum performance requirements (e.g., a maximum cost and a completion deadline). The bidding service may reject any bids that fail to satisfy the minimum performance requirements. Where the work flow controller has established multiple branches, each such branch may include minimum performance requirements. The branch-specific performance requirements may be established by the work flow controller based on overall performance requirements for the job ticket.

Use of a job ticket service to store bid information

To control concurrent access problems, the job ticket service may employ branch locking features, that is, the capability to lock a job ticket at the branch level. The branch locking may be accomplished by one of several methods. The work flow controller may assign one or more specific processors to perform the tasks identified with the branch to be locked. Where more than one processor is authorized access to the same branch, the job ticket service may lock the branch when one of the authorized processors actually acquire the branch. The job ticket service may lock the branches by setting a lock/unlock flag for each branch. Processors accessing the job ticket may then review the lock/unlock flag status to determine if the branch may be accessed. In some circumstances, the job ticket service may allow access only to those branches that are unlocked. A processor that has completed a task defined by the branch may need to have the branch unlocked in order to modify the branch.

Branch locking of job tickets to control concurrency

A job ticket service center includes features to provide security and to control access to a job ticket and related resources. The service center may include programming or servers to authenticate a processor and to authorize the processor to access a particular job ticket. An authentication server receives authentication information from a processor and an authorization server uses the information to check authorization functionality. The authorization or access rights of the processor may be carried as a part of the job ticket. Using these features, the service center may provide trusted authentication information about the processor to the authorization server, and the authorization server then performs its authority check functions. The job ticket maybe signed with an industry standard public key encryption message digest (MD) signature, and may be protected by a public key encryption system. Hence, any entity that has the public key may validate the job ticket without having to communicate with the authentication server. These features reduce communication between distributed server applications. The features also allow the job ticket to be passed from one processor to another processor, maintaining security, without communicating with the service center.

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Roseville, CA, United States of America

Brian A Volkoff