Theoretical method of approach to description of electronic and magnetic structures of metallic surfaces of interfaces and superlattices is proposed. For quasilocalized d-electrons the periodic. Anderson model is used with accounting for d-d coupling inside of a given number of coordination spheres. The theory includes minimum amount of phenomenological parameters defined by properties of bulk material. The approach developed is applied to calculation of electronic structure of Cr atom clusters in iron matrix, Fe/Cr interfaces, Cr monolayer coating on iron, Fe/Cr superlattices. Within the frameworks of the above model a problem of giant magnetoresistance is also considered.