storage. Optical media in jukeboxes may be moved offline. Cloud computing: Data may be accessed via the Internet. Preserve Preserve is the long-term, safe storage and backup of unchanging information. Typically accomplished by ECM records management, it may be designed to help companies comply with government and industry regulations. Content eventually stops changing and becomes static. ECM's digital preservation components also temporarily store information which does not need to be archived. Preserve components have special viewers, conversion and migration tools, and long-term storage media: Write once read many (WORM) or optical discs, CD-Rs and DVD-Rs Magnetic tapes in secure drives Content-addressable storage, with software protection against overwriting, erasure, and editing Storage networks may be used if they provide edit-proof auditing, with unchangeable storage and protection against manipulation and erasure. Microforms, such as microfilm, microfiche, and aperture cards, are typically used to secure electronic information. Paper also secures electronic information. Long-term preservation strategies To ensure the long term availability of information, several strategies are used for electronic archiving. Applications, index data, metadata and objects may be continuously migrated from older systems to newer ones. Emulation of older software allows users to access original data and objects; software can identify the format of preserved objects and display them in a new environment. Deliver Enterprise output management presents information from the manage, store, and preserve components. Its Association for Information and Image Management model for ECM is function-based; the deliver components may enter information into other systems (such as transferring information to portable media or generating output files) or prepare information for storage and preservation. Deliver components may be divided into three groups: transformation technologies, security technologies, and distribution. Transformation and security are middleware services and should be equally available to all ECM components. For output, primary functions are layout and design (with tools for laying out and formatting output) and electronic publishing (presenting information for distribution). Transformation technologies Transformations should be controlled and trackable by background services. They include: Computer output to laser disc (COLD): When used for delivery COLD prepares output data for distribution and archiving. Applications include lists and formatted output (such as personalized customer letters), journals and logs. Personalization: Functions and output customized for a user's needs XML (Extensible Markup Language): Enables the standardized, cross-platform description of interfaces, structures, metadata, and documents PDF (Portable Document Format): A cross-platform printing and distribution format which permits content searches, the addition of