A method (500, 600, 700, 800, 900) comprising: determining a plurality of network performance characterization values associated with a respective plurality of client devices (191, 192, 193a, 193b, 194, 195, 196, 197, 300, 1031), wherein each network performance characterization value provides a corresponding quantitative characterization of factors that influence quality of experience associated with the use of media content data that is received by a respective one of the plurality of client devices, and wherein each network performance characterization value is based on at least one perception metric which is generated for the received media content data as a function of a predetermined performance level and an actual performance level achieved at the respective client device; generating one or more shared-resource traffic quality indicator values associated with one or more of the plurality of client devices (191, 192, 193a, 193b, 194, 195, 196, 197, 300, 1031), wherein each shared-resource traffic quality indicator value characterizes a portion of a network (120, 140) based on an assessment of the plurality of network performance characterization values in relation to one or more capacity values of one or more respective shared network resources; and managing an allocation of shared network resources based on the one or more shared-resource traffic quality indicator values. determining a plurality of network performance characterization values associated with a respective plurality of client devices (191, 192, 193a, 193b, 194, 195, 196, 197, 300, 1031), wherein each network performance characterization value provides a corresponding quantitative characterization of factors that influence quality of experience associated with the use of media content data that is received by a respective one of the plurality of client devices, and wherein each network performance characterization value is based on at least one perception metric which is generated for the received media content data as a function of a predetermined performance level and an actual performance level achieved at the respective client device; wherein each network performance characterization value provides a corresponding quantitative characterization of factors that influence quality of experience associated with the use of media content data that is received by a respective one of the plurality of client devices, and wherein each network performance characterization value is based on at least one perception metric which is generated for the received media content data as a function of a predetermined performance level and an actual performance level achieved at the respective client device; generating one or more shared-resource traffic quality indicator values associated with one or more of the plurality of client devices (191, 192, 193a, 193b, 194, 195, 196, 197, 300, 1031), wherein each shared-resource traffic quality indicator value characterizes a portion of a network (120, 140) based on an assessment of the plurality of network performance characterization values in relation to one or more capacity values of one or more respective shared network resources; and managing an allocation of shared network resources based on the one or more shared-resource traffic quality indicator values.