The ability to store document images is crucial to systems success. A range of storage options exist for imaging applications. Generally, less costly storage media provide slower transfer rates while more expensive media deliver images more rapidly. The most appropriate storage media for a given application can be determined through the use of cost-benefit analysis. Optical disk is commonly used in many document imaging systems.
Magnetic tape allows slow retrieval, but is a good option for backing up electronic records files.
Image retrieval is software dependent and involves the use of output devices such as monitors and printers. Fairly low resolution black and white monitors and printers are adequate for many document imaging applications. The use of such equipment can serve to significantly lower the overall costs associated with an imaging system. The ability to output document images to fax may also be desired. As previously noted, the ability to output images to other nodes along a local area network may or may not be appropriate depending on environmental and financial constraints.