Abstract: An access permissions management system including a hierarchical access permissions repository including access permissions relating to data elements arranged in a data element hierarchy, wherein some of the data elements have only access permissions which are inherited from ancestral data elements, some of the multiplicity of data elements are prevented from having inherited access permissions and thus have only unique access permissions which are not inherited and some of the data elements are not prevented from having inherited access permissions and have not only inherited access permissions but also unique access permissions which are not inherited, some of which unique access permissions possibly being redundant with inherited access permissions, and an access permissions redundancy prevention engine operative to ascertain which of the unique access permissions are redundant with inherited access permissions and not to store the unique access permissions which are redundant with inherited access permiss

Abstract: An access permissions management system including a hierarchical access permissions repository including access permissions relating to data elements arranged in a data element hierarchy, wherein some of the data elements have only access permissions which are inherited from ancestral data elements, some of the multiplicity of data elements are prevented from having inherited access permissions and thus have only unique access permissions which are not inherited and some of the data elements are not prevented from having inherited access permissions and have not only inherited access permissions but also unique access permissions which are not inherited, some of which unique access permissions possibly being redundant with inherited access permissions, and an access permissions redundancy prevention engine operative to ascertain which of the unique access permissions are redundant with inherited access permissions and not to store the unique access permissions which are redundant with inherited access permiss

Abstract: An access permissions management system including a hierarchical access permissions repository including access permissions relating to data elements arranged in a data element hierarchy, wherein some of the data elements have only access permissions which are inherited from ancestral data elements, some of the multiplicity of data elements are prevented from having inherited access permissions and thus have only unique access permissions which are not inherited and some of the data elements are not prevented from having inherited access permissions and have not only inherited access permissions but also unique access permissions which are not inherited, some of which unique access permissions possibly being redundant with inherited access permissions, and an access permissions redundancy prevention engine operative to ascertain which of the unique access permissions are redundant with inherited access permissions and not to store the unique access permissions which are redundant with inherited access permiss

Abstract: An access permissions management system including a hierarchical access permissions repository including access permissions relating to data elements arranged in a data element hierarchy, wherein some of the data elements have only access permissions which are inherited from ancestral data elements, some of the multiplicity of data elements are prevented from having inherited access permissions and thus have only unique access permissions which are not inherited and some of the data elements are not prevented from having inherited access permissions and have not only inherited access permissions but also unique access permissions which are not inherited, some of which unique access permissions possibly being redundant with inherited access permissions, and an access permissions redundancy prevention engine operative to ascertain which of the unique access permissions are redundant with inherited access permissions and not to store the unique access permissions which are redundant with inherited access permiss

Abstract: A method for ascertaining access permissions of users to computer resources on a storage unit, the method including grouping users into a plurality of user groups wherein all members of at least one of the user groups have at least nearly identical user/resource access permissions to the computer resources, grouping resources into a plurality of resource groups wherein all members of at least one of the resource groups have at least nearly identical resource/user access permissions, ascertaining whether a given user is a member of a user group, if the given user is a member of a user group, ascribing to the given user the user/resource access permissions of the user group, ascertaining whether a given resource is a member of a resource group, and if the given resource is a member of a resource group, ascribing to the given resource the resource/user access permissions of the resource group.

Abstract: An access permissions management system including a hierarchical access permissions repository including access permissions relating to data elements arranged in a data element hierarchy, wherein some of the data elements have only access permissions which are inherited from ancestral data elements, some of the multiplicity of data elements are prevented from having inherited access permissions and thus have only unique access permissions which are not inherited and some of the data elements are not prevented from having inherited access permissions and have not only inherited access permissions but also unique access permissions which are not inherited, some of which unique access permissions possibly being redundant with inherited access permissions, and an access permissions redundancy prevention engine operative to ascertain which of the unique access permissions are redundant with inherited access permissions and not to store the unique access permissions which are redundant with inherited access permiss

Abstract: An access permissions management system including a hierarchical access permissions repository including access permissions relating to data elements arranged in a data element hierarchy, wherein some of the data elements have only access permissions which are inherited from ancestral data elements, some of the multiplicity of data elements are prevented from having inherited access permissions and thus have only unique access permissions which are not inherited and some of the data elements are not prevented from having inherited access permissions and have not only inherited access permissions but also unique access permissions which are not inherited, some of which unique access permissions possibly being redundant with inherited access permissions, and an access permissions redundancy prevention engine operative to ascertain which of the unique access permissions are redundant with inherited access permissions and not to store the unique access permissions which are redundant with inherited access permiss

Abstract: An access permissions management system including a hierarchical access permissions repository including access permissions relating to data elements arranged in a data element hierarchy, wherein some of the data elements have only access permissions which are inherited from ancestral data elements, some of the multiplicity of data elements are prevented from having inherited access permissions and thus have only unique access permissions which are not inherited and some of the data elements are not prevented from having inherited access permissions and have not only inherited access permissions but also unique access permissions which are not inherited, some of which unique access permissions possibly being redundant with inherited access permissions, and an access permissions redundancy prevention engine operative to ascertain which of the unique access permissions are redundant with inherited access permissions and not to store the unique access permissions which are redundant with inherited access permiss

Abstract: A method for ascertaining access permissions of users to computer resources on a storage unit, the method including grouping users into a plurality of user groups wherein all members of at least one of the user groups have at least nearly identical user/resource access permissions to the computer resources, grouping resources into a plurality of resource groups wherein all members of at least one of the resource groups have at least nearly identical resource/user access permissions, ascertaining whether a given user is a member of a user group, if the given user is a member of a user group, ascribing to the given user the user/resource access permissions of the user group, ascertaining whether a given resource is a member of a resource group, and if the given resource is a member of a resource group, ascribing to the given resource the resource/user access permissions of the resource group.

Abstract: Methods and apparatus for validating design changes in an integrated circuit design without propagating the effects of individual design changes to every location in the integrated circuit design. Local sensitivity functions at design nodes are aggregated and merged at interconnecting nodes in a recursive process.

Abstract: Methods and apparatus for validating design changes in an integrated circuit design without propagating the effects of individual design changes to every location in the integrated circuit design. Local sensitivity functions at design nodes are aggregated and merged at interconnecting nodes in a recursive process.