Compared to non-electronic systems, the document management systems offer reduced operational costs, improved efficiency and speed of retrieval, improved consistency, and more safety (both in terms of file backups and security measures). There are hundreds of systems out there, each with their own strengths and weaknesses. The points to consider are: purchasing/set up costs, types of features, training, upkeep, ease of use etc. Be sure to assess each one in light of your specific needs and your organizational processes.