1. A computer system comprising: a first asset type computer system storing first asset type data records corresponding to a first asset type; a second asset type computer system storing second asset type data records corresponding to a second asset type, and the second asset type computer system being separate from the first asset type computer system; a parameter coordination computer system interposed between the first asset type computer system, the second asset type computer system, and an event processing computer system, to communicatively couple each of the first asset type computer system, the second asset type computer system, and the event processing computer system, to the parameter coordination computer system, wherein the parameter coordination computer system is configured to: responsive to a plurality of asset coverage requests received from a plurality of corresponding requestor terminals, render a display, for each of the plurality of asset coverage requests for a corresponding one of the plurality of requestor terminals, the display including: a first screen area which displays first package data; a second screen area which displays second package data; and a third screen area which displays a dynamically generated script which explains differences between the first package data and the second package data, wherein at least one of the first package data and the second package data includes a parameter coordination feature; wherein the display automatically renders the plurality of screen areas to be equal in horizontal dimension, and arranges the plurality of screen areas of equal horizontal dimension horizontally adjacent to one another in a non-overlapping and simultaneously visible configuration across at least a portion of the available display area; and receive, from one or more of the plurality of corresponding requestor terminals, one or more first and second package data selections corresponding to package selections made on corresponding ones of the plurality of requestor terminals, the first and second package data selections including at least one package selection corresponding to a package including the parameter coordination feature; and store, in a data storage device, one or more package data records, each package data record corresponding to one of the one or more first and second package data selections, and each package data record including a program ID data value indicative of whether the corresponding package includes the parameter coordination feature; wherein the event processing computer system is configured to: receive event data and event coverage data corresponding to an event; retrieve, from the data storage device, the package data record corresponding to the event coverage data, the retrieved package data record including the program ID data field having the data value indicative of whether the corresponding package includes the parameter coordination feature; determine, based on the value of the program ID data field of the retrieved package data record, whether the parameter coordination feature applies to the event, wherein the parameter coordination feature provides for coordination of a first parameter stored in the first asset computer system and a second parameter stored in the second asset computer system; determine, based on the event data, whether the event involves one or both of the first asset type and the second asset type; responsive to a determination that the event involves both the first asset type and the second asset type, extract from the first asset type computer system, the first parameter, and extract, from the second asset type computer system, the second parameter; apply parameter coordination rules to determine which one of the first parameter and the second parameter apply to the event; dynamically update, based on the determined one of the first parameter and the second parameter, one of the first asset type computer system and the second asset type computer system to indicate application of the determined one of the first parameter and the second parameter; and set, based on the determined one of the first parameter and the second parameter, a parameter coordination flag in the other of the first asset type computer system and the second asset type computer system, to track application of the determined one of the first parameter and the second parameter in the other of the first asset type computer system and the second asset type computer system.