From the above article:
"The faith-follower and the Dhamma-follower are the lowest members of a sevenfold typology of noble persons mentioned in the Nikāyas as an alternative to the more common scheme of "the four pairs of persons," the four path-attainers and the realizers of their respective fruits. The seven fall into three groups. At the apex are the arahants, who are distinguished into two types: (i) "both-ways-liberated" arahants (ubhatobhāgavimutta), who gain release from the taints together with deep experience of the formless attainments; and (ii) "wisdom-liberated" arahants (paññāvimutta), who win release from the taints without such experience of the formless attainments. Next are three types in the intermediate range, from stream-enterers up to those on the path to arahantship. These are: (iii) the body-witness (kāyasakkhī), who has partly eliminated the taints and experiences the formless attainments; (iv) the view-attainer (diṭṭhippatta), who does not experience the formless attainments and has partly eliminated the taints, with emphasis on wisdom; and (v) the faith-liberated (saddhāvimutta), who does not experience the formless attainments and has partly eliminated the taints, with emphasis on faith. Any disciple at the six intermediate stages -- from stream-enterer to one on the path to arahantship -- can fall into any of these three categories; the distinctions among them are not determined by degree of progress but by mode of progress, whether through strong concentration, wisdom, or faith. Finally come the two kinds of anusārī (vi-vii), who are on the path to stream-entry."