Do you mean to stop students posting plagarised content?
Alfresco does not directly have an integration with a plagarism scanner although I would have thought that some sort of system could be integrated fairly easily. For example a workflow could be kicked off upon a new document being posted which runs the plagarism scanner and then executes some sort of business rules depending on the result.
ya…i have studied around 13 java open cms and didnt find anti plagarism support in any of them… do u think i shall post the results of my study on this forum…it includes a list of 29 features which i thought would be essential for a cms… also the availablity of those features in different cms is listed …