What is product line filling? What is product line pruning?

What is product line filling? What is product line pruning?

Product line filling is the addition of further items to the current line of products that a company is dealing in. Eg.Maruti Suzuki had launched Alto in the year 2000 which was a product between two other models of Maruti- Maruti 800 and Maruti Zen. Basically , it was an effort on part of the company to fill the gap that existed in the market segment by introducing this new model ALTO . On the other hand, product line pruning is the removal of the unprofitable products from the product line. Eg. Toyota Kirloskar phasing out their model Qualis, when it was not adding any value to the product line as such.