Patent ID: 7769568

Claim:
A tool for use in managing operations and maintenance (O&M) of facilities comprising multiple items, comprising: computer readable media incorporating: a mathematical model that employs pre-specified parameters to adjust a relationship of a condition index (CI) to time for at least one said item, said model automatically adjusting said relationship of said CI to time to reflect at least observed changes to said at least one item, said changes input as updates to categories of data; data of a first type in at least one of said categories of data representing at least assumptions and comprising data points; wherein at least one said assumption is related to said at least one item, said at least one assumption asserted as at least one limitation in said mathematical model; data of a second type in at least one of said categories of data representing at least some empirical observations related to said at least one item, wherein at least some of said updates utilize at least said data of a second type; at least one specially configured computer in operable communication with said computer readable media, said at least one specially configured computer specially configured to at least execute said mathematical model; and at least one display in operable communication with each said at least one specially configured computer, wherein on at least said at least one display, said adjustable relationship of said CI to time is at least presented as one curve of CI versus time in which said at least one curve is adjusted to include the last said change input as a point on said curve, and wherein use of said tool yields at least quantitative measures of the impact on at least O&M lifecycle cost of most recent upgrades, repairs and preventive maintenance actions to at least said at least one item.