can be defined as a business strategy where the firm plans to expand its established product brand name with the new range of items in the product category
product line extension
this is an important product strategy which refers to the value adding modifications to already existing products

product modification
the accurate moment to make modifications in already existing product is in the stage called "_"
maturity
3 key marketing information
preferences, buying habits, lifestyle habits
2 types of modifications
retention type, conquesting type
this is focused on the firm's loyal customers and its goal is to increase the product's attractiveness for them
retention type
this is focused on the competitor's loyal customers and it allows to increase the product's attractiveness for them
conquesting type
who is responsible for changes in the existing products?
product manager
3 main characteristics of a product which may be changed