Adaugarea de profunzime unei linii de produse existenta prin introducerea de noi produse in aceeasi categorie de produse, extensiile de linii de produse dau clientilor spatiu mai mare de a alege si ajuta la protejarea firmei de un atac din partea uni competitor. Vezi Product Line; Product Line Depth; Product Line Stretching
adding depth to an existing product line by introducing new products in the same product category; product line extensions give customers greater choice and help to protect the firm from a flanking attack by a competitor. See Product Line; Product Line Depth; Product Line Stretching.