14. A computer program product for determining priority of a document, the computer program product comprising a non-transitory computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising: computer readable program code configured to acquire contexts about each of a plurality of documents from each of the documents, wherein each of the contexts comprise dynamic information regarding one of the documents, the dynamic information comprising at least momentary changing of an operational state; computer readable program code configured to define one or more rules for calculating priority according to a combination of the acquired contexts; computer readable program code configured to calculate a priority for each of the documents according to the one or more rules; and computer readable program code configured to store the documents into at least two queues according to the priority of each document, wherein each of the queues is characterize as having a unique classification timing.
14. A computer program product for determining priority of a document, the computer program product comprising a non-transitory computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising: computer readable program code configured to acquire contexts about each of a plurality of documents from each of the documents, wherein each of the contexts comprise dynamic information regarding one of the documents, the dynamic information comprising at least momentary changing of an operational state; computer readable program code configured to define one or more rules for calculating priority according to a combination of the acquired contexts; computer readable program code configured to calculate a priority for each of the documents according to the one or more rules; and computer readable program code configured to store the documents into at least two queues according to the priority of each document, wherein each of the queues is characterize as having a unique classification timing. 19. The computer program product as recited in claim 14 , further comprising; computer readable program code configured to retrieve the plurality of documents from a predetermined queue; computer readable program code configured to extract content from each of the documents to serve as criterion for labeling thereof; computer readable program code configured to assign a degree of confidentiality to each of the documents according to an extracted content thereof; and computer readable program code configured to adjust the priority of at least one of the documents according to an amount of time elapsed since the document was stored in one of the queues, wherein the acquired contexts comprise at least one of: an update frequency, an operation time, a state in a workflow, a presence of an active process, an absence of an active process, a user right, and a location.