This product line timeline is a graphic timeline that communicates how a team intends to implement a product line strategy. It depicts key milestones and relationships between strategy components. Most product line strategies include at least one platform lever. Teams represent platform levers as parallel timelines. These become the focal point of the roadmap. The roadmap employs a blank timeline if the strategy does not include a platform-lever. Teams use objects or shapes to represent new products and innovation targets on the platform-lever timeline. Their placement indicates anticipated launch dates. The new product objects are then linked to other roadmap shapes representing targeted market segments and key technology building blocks.