1. A method for applying a set of rules to a processed device data corresponding to a device, said method comprising: identifying, in the processed device data, a trend line comprising a graphical representation of the processed device data, the processed device data including operational and performance related data of the device, and the trend line indicating a state of the device; analyzing the trend line to select at least one selected keyword from a predetermined plurality of keywords that describes at least one feature of the trend line; accessing a rules database storing said set of rules, wherein each rule of the set of rules comprises descriptive textual data that describes at least one trend line feature and a reason for the at least one trend line feature; examining the set of rules to determine at least one rule from the set of rules containing descriptive textual data that includes the at least one selected keyword; identifying a proposed action correlated to the at least one rule, wherein the proposed action is for remedying the state of the device indicated by the trend line; and providing the proposed action to a user associated with the device for determining whether to undertake the proposed action.