Case Study Attributes: Each of the three case studies have demonstrated attributes which might contribute to the development of a more effective information management system. Since these attributes (and limitations) have been discussed in detail in Chapter 4, an abbreviated review of them will suffice as a prelude to the outline of operational parameters for an Integrated Preservation Information System. Integrated Preservation Information Systems Data Integration HSPD Attributes Summary CRISTAL Attributes Summary PC-Hypertext Attributes Summary