| 摘要 |
In a token-based deadline enforcement system for electronic document submission, a submission requirements centre collects information on submission requirements (eg., deadlines for submitting bids in response to commercial tenders), from the processing environments that generate the requirements. A gateway to a network of potential submitters polls the information collected in the submission requirements centre, and generates tokens corresponding to current submission time limits. These tokens are available to all potential submitters until expiry of the corresponding time limit for the submission. On receiving a request for electronic submission from a submitting program, the gateway searches its records for the token corresponding to the submission type. If the token is located, it is returned to the submitting program for packaging with the submission. If the token is not located, an electronic message, such as an error flag, is returned to the submitting program, and the submitter knows immediately that the submission did not meet the deadline. When a submission packaged with a valid token is received at the gateway, it can be routed directly to the processing environment that generated the submission requirement. The valid token provides an on-time validity check; the receiving processing environment does not have to check the submission as it arrives to ensure that it has been filed on time, but can delay processing to a convenient time, to verify compliance with substantive requirements for filing the submission. This scheme provides the submitter with immediate feedback whether the submission has been accepted for filing within the deadline. Possible performance problems in trying to process "time of filing" for a large number of submissions filed virtually simultaneously as the submission deadline draws near, are avoided. Also, the submitter is saved network access costs in waiting for a verification of filing to be returned.
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