1. A computerized method for writing audit trails in a Workflow-Management-System (WFMS), said method being executable by said WFMS on at least one computer system, said method comprising the steps of:
assigning a multitude of audits trails as potential targets for one or more audit trail records to said WFMS, and
assigning an audit trail distribution strategy to said WFMS,
comprising a specification which of said potential targets to be used for writing said audit trail record, and
dynamically analyzing for a current audit trail record said distribution strategy and determining a current target from said multitude of audit trails, and
writing said current audit trail record to said current target.
2. Method according to claim 1,
wherein said step of assigning said distribution strategy comprises a SYSTEM-specification associating each WFMS instance of a multitude of WFMS instances with an audit trail of said multitude of audits trails.
3. Method according to claim 1,
wherein associating said each WFMS instance is accomplished according to a round-robin scheme with said multitude of audit trails.
4. Method according to claim 1,
wherein said step of assigning said distribution strategy comprises a PROCESS-specification in a process model associating said process model with an audit trail of said multitude of audits trails.
5. Method according to claim 1,
wherein said step of assigning said distribution strategy comprises an ACTIVITY-specification in a process model associating an activity comprised by said process model with an audit trail of said multitude of audits trails.
6. Method according to claim 5,
wherein said ACTIVITY-specification overrides said PROCESS-specification.
7. Method according to claims 6,
wherein said specification comprising an evaluatable expression, and wherein said step of dynamically analyzing comprising evaluating said evaluatable expression using a variable value not comprised in said process model but being comprised in a context of a process instance of said process model to determine said current target.
8. Method according to claim 7,
wherein said specification comprises a definition of a level of details to be comprised by an audit trail record.
9. A Workflow-Management-System (WFMS) executable on at least one computer system, the WFMS comprising means adapted for carrying out the steps of the method according to anyone of the preceding claims 1 to 8.
10. A data processing program for execution in a data processing system comprising software code portions for performing a method according to any of claims 1 to 8 when said program is run on said computer.
11. A computer program product stored on a computer usable medium, comprising computer readable program means for causing a computer to perform a method according to any claims 1 to 11 when said program is run on said computer.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for measuring ultralow permeation through an adhesive perimeter using a radioactive compound, which method comprises the steps of:
mounting a line of adhesive through which permeation is to be measured between two plates so as to provide controlled access to an upstream surface of the line of adhesive in a first chamber and to a downstream surface thereof in a second chamber, wherein said second downstream chamber has a volume of not greater than about 10 cm3,
supplying a radioactive gas from a source to be in contact with the upstream surface of the line of adhesive in the first chamber,
collecting radioactive gas permeating from the downstream surface of the sample by circulating a very slow flow of dry carrier gas at a rate of not greater than about 1.5 liter per hour through the second chamber to provide a radioactive stream,
flowing said radioactive stream from said second chamber to an entrance to an ionic chamber not greater than about 2 liters in volume containing a beta-particle radiation monitor,
continuously monitoring said stream for beta particle radioactivity and generating signals, and
receiving signals from said radiation monitor in conversion means and converting the signals to calculate the permeation rate through the sample at that moment, whereby the sensitivity of the method allows measurement of permeation of radioactive gaseous compounds through lines of adhesive that have barrier properties which permit permeation at rates of less than 0.0001 gmsq.mday.
2. The method for measuring permeation according to claim 1 wherein said radioactive gas is tritiated water vapor (HTO).
3. The method for measuring permeation according to claim 2 wherein a relative humidity of HTO between about 85% and 100% is supplied to the first chamber throughout the entire test period for the sample.
4. The method for measuring permeation according to claim 1 wherein said radioactive gas is HTO and said carrier gas is dry methane.
5. The method for measuring permeation according to claim 1 wherein said radioactive gas is carbon14 monoxide (14CO).
6. The method for measuring permeation according to claim 5 wherein said carrier gas is dry argon.
7. The method for measuring permeation according to claim 1 wherein said carrier gas enters said second chamber at a pressure just sufficient to maintain the desired very slow flow and is vented to the atmosphere through an absorption device which removes all of said radioactive compound from said carrier gas stream.
8. The method for measuring permeation according to claim 7 wherein said carrier gas enters at a pressure of not greater than about 1.1 atm.
9. A method for testing a perimeter seal including adhesive material for ultralow permeation therethrough using a radioactive compound, which method comprises the steps of:
providing two plates, one of which has an opening therethrough which is spaced from the edges thereof, and assembling said plates so their facing surfaces are spaced substantially equidistant to each other by a continuous seal that includes adhesive material and encircles said opening,
mounting said assembly so as to provide controlled access to said plate containing the opening in a first chamber and to the other plate in a second chamber,
supplying a radioactive gas to the first chamber from a source so as to fill the region between said two plates and thus be in contact with an upstream surface of the continuous seal,
collecting radioactive gas permeating from the downstream surface of the perimeter seal by circulating a very slow flow of dry carrier gas at a rate of not greater than about 1.5 liters per hour through the second chamber to provide a collection stream,
flowing said radioactive collection stream from said second chamber to an entrance to an ionization chamber containing a beta-particle radiation monitor,
continuously monitoring said stream for beta-particle radioactivity and generating signals, and
receiving signals from said radiation monitor in conversion means and converting the signals to calculate the permeation rate through the mounted perimeter seal at that moment.
10. The method for testing for permeation according to claim 9 wherein said radioactive gas is either tritiated water vapor (HTO) or 14CO.
11. Apparatus for measuring ultralow permeation through adhesive material, which apparatus comprises:
a first flat plate having an opening which extends therethrough,
means for mounting a second flat plate having an area greater than said opening spaced from a downstream surface of said first flat plate by a line of adhesive of defined thickness and width, which adhesive line completely encircles said opening and creates a seal between said plates through which permeation is to be measured,
a first chamber in communication with an upstream surface of said first plate,
a second chamber in communication with the downstream surface thereof, said second downstream chamber having a volume not greater than about 10 cm3,
means for supplying a radioactive gas to the first chamber where it will be in contact with the line of adhesive between said plates,
means for circulating a slow flow of carrier gas through the second chamber to provide a stream containing the radioactive gas permeating through the line of adhesive,
conduit means for flowing said stream from said second chamber to an ionic chamber that contains a radiation monitor for continuously monitoring said stream for beta particle radioactivity and for creating signals indicative of radioactivity, said ionic chamber having a volume not greater than about 2 liters, and
conversion means for receiving signals from said radiation monitor and converting the signals to calculate the permeation rate through the sample at that moment, whereby the sensitivity is such as to detect permeation of radioactive gaseous compounds through a sample line of adhesive that has baffler properties which permit permeation at a rate of less than 0.0001 gmm2day.
12. A method for measuring ultralow permeation through a sample using a radioactive compound, which method comprises the steps of:
mounting a sample through which permeation is to be measured so as to provide controlled access to an upstream surface of the sample in a first chamber and to a downstream surface thereof in a second chamber, wherein said second downstream chamber has a volume of not greater than about 10cm3,
supplying carbon14 monoxide (14CO) from a source so as to be in contact with the upstream surface of the sample in the first chamber,
collecting 14CO permeating from the downstream surface of the sample by circulating a very slow flow of dry carrier gas at a rate of not greater than about 1.5 liter per hour through the second chamber to provide a radioactive stream,
flowing said radioactive stream from said second chamber to an entrance to an ionic chamber not greater than about 2 liters in volume containing a beta-particle radiation monitor,
continuously monitoring said stream for beta particle radioactivity and generating signals, and
receiving signals from said radiation monitor in conversion means and converting the signals to calculate the permeation rate through the sample at that moment, whereby the sensitivity of the method allows measurement of permeation of 14CO through samples that have baffler properties which permit permeation at rates of less than 0.0001 gmsq.mday.
13. The method for measuring permeation according to claim 12 wherein 14CO is supplied to the first chamber at a pressure slightly above ambient.
14. The method for measuring permeation according to claim 12 wherein said carrier gas is dry argon.
15. The method for measuring permeation according to claim 12 wherein said carrier gas enters said second chamber at a pressure just sufficient to maintain the desired very slow flow and is vented to the atmosphere through an absorption device which removes all of said 14CO from said carrier gas stream.
16. The method for measuring permeation according to claim 15 wherein said carrier gas enters at a pressure of not greater than about 1.1 atm.
17. The method for measuring permeation according to claim 12 wherein said sample is a polymeric film.
18. The method for measuring permeation according to claim 12 wherein said sample is line of adhesive of uniform width disposed between two flat plates.