Delivery time and delivery reliability represent a key indicator of a company's logistics performance and are becoming increasingly important due to ever-growing competition and the ever-shorter life cycle of products. The targeted optimization of delivery time and delivery reliability can counteract competitive pressure on the market. However, since there are many influencing factors, a structured and effective approach is required. There must therefore be concrete measures and analyses for achieving goals such as shorter delivery times and greater adherence to delivery schedules. Product segmentation is used to classify products into segments, for each of which different delivery times are defined. In this way, a difference between standard and non-standard products is to be created, which is to influence the buying behaviour of the customers. In the course of this work, a catalog of measures for the successful introduction of product segmentation, the optimization of delivery times and the optimization of delivery reliability in the context of a high-mix/low-volume product portfolio is created. In addition to collecting data by means of a questionnaire, measures are evaluated based on a practical example in a mechanical engineering company.