Characteristics yes. As in what will one be doing during working hours, or what one delivers. However, I've seen "seniors" who really had no business being in s

Characteristics yes. As in what will one be doing during working hours, or what one delivers. However, I've seen "seniors" who really had no business being in software development. No idea how they claimed the "title". While at the same time I see what the industry labels as "Juniors" due to number of years in the job market, being so amazingly good at what they do that they put said seniors to shame. Yet the "business" needs those labels to justify a pay-grade of sorts. This is wrong in my opinion. Compensation should match the ability, not the number of years someone had the fortune of being employed at this or that capacity or how good they can blag through an interview.