1. A method for enriching comparison data of decision making applications, by which an application user makes decisions by utilizing at least one evaluation frame, the method comprising: defining in a development environment implemented on a processor unit a first decision making application by defining an application specific default database by: selecting attributes to be assessed; selecting items to be compared; linking the attributes to the items by default attribute values; and saving the defined default database of the first decision making application to a global database; in the global database: calculating with the processor unit global attribute values to items from linked default attribute values of said items of decision making applications included in the global database, wherein the global attributes of items are defined from their original attribute values as follows: an item having the biggest attribute value of all items of all decision making applications in a utilized scale retains its original attribute value as the global attribute value or is set to a specific attribute value; items originating from the same decision making application as the item having the biggest global attribute value retain their original attribute values, or get attribute values that are proportional to the specific attribute value of the item having the biggest attribute value, as their global attribute value; global attribute values of other items of other decision making applications are defined by multiplying the original attribute value by at least one factor where each of the factors are defined by one common item of two decision making applications by dividing a smaller attribute value of said item of a decision making application by a bigger attribute value of the same item of another decision making application; and converting with the processor unit from the global attribute values at least one local attribute to be included in a second decision making application, which has at least one attribute or item linked to an existing attribute or item in the global database, thereby speeding up creation of the second decision making application.