There are several important aspects of a DSP. Understanding and managing these key aspects can help determine how effective the DSP will be in achieving business goals. Demanding flexibility and open standards from the DSP will allow interaction with the myriad applications and features that are available from a variety of sources, as well as utilizing the network infrastructure to its potential.
Maintaining executive control and ownership of infrastructure and information will facilitate the ability to integrate with OEMs and third party suppliers. Following these guidelines will help preserve the dealer's customer relationship, ease the transition to new systems and suppliers and bolster competitiveness and innovation in the DSP market space. Look closely at the existing DSP and plan carefully when upgrading systems or changing suppliers.
Here are links to several of the DSP vendors.