1. A processor-implemented method, comprising: accessing, via an at least one processor, a first database including a plurality of first data objects, the plurality of first data objects associated with at least a first identifier type, a first characteristic type, a second characteristic type, each first data object from the plurality of first data objects having at least one of a value associated with the first identifier type, a value associated with the first characteristic type or a value associated with the second characteristic type; accessing, via the at least one processor, a second database separate from the first database and including a plurality of second data objects unrelated to the plurality of first data objects, the plurality of second data objects associated with at least the second identifier type, the second characteristic type, and a third characteristic type, each second data object from the plurality of second data objects having at least one of a value associated with the second identifier type, a value associated with the third identifier type, and/or a value associated with the second characteristic type; applying, via the at least one processor, a business rule to the plurality of first data objects and to the plurality of second data objects, the business rule being a logical expression indicating a relationship between a first concept and a second concept, the first concept being a logical expression indicative of the presence of a selected value of the first characteristic type and the second concept being a logical expression indicative of the presence of a selected value of the second characteristic type, the first concept and the second concept each representing a real world observation or a word or phrase conveying an idea or meaning; identifying, via the at least one processor, each first data object from the plurality of first data objects and each second data object from the plurality of second data object that satisfy the business rule to define a list of identified first data objects and a list of identified second data objects; identifying, via the at least one processor, a relationship between a value of the first identifier type of an identified first data object from the list of identified first data objects with a value of the third characteristic type of an identified second data object from the list of identified second data object based on the value of the second identifier type of the identified second data object matching a value of the first identifier type of the identified first data object; harmonizing, via the at least one processor, at least one of the identified relationships and the identified data objects to identify any inconsistencies; and issuing, via the at least one processor, an alert to a graphical user interface based on an identification of at least one inconsistency, the alert including an identifier indicating the at least one inconsistency.