Aspects Peculiar to Product Lines Product line requirements constitute an important and tangible core asset. They define the products in the product line vya standard vga graphics adapter driver update
the features of and the constraints on those products. Requirements common across the product line are written with variation points that can be filled in or exercised to create product-specific requirements. Sometimes the variation point will map to null for a product, corresponding to standard vga graphics adapter driver update feature that ztandard product does not have. And there must be some mechanism by which the complete set of itextsharp combine pdf
for a particular product (common plus unique) can be produced quickly and easily, implying that the product-specific requirements are stored as a set of deltas relative to the product-line-wide requirements specification. Requirements engineering for a product line differs from requirements engineering for single systems as follows: Requirements elicitation for a product line must capture anticipated variations explicitly over the foreseeable lifetime of the product line.