14. A computer program product for generating calculation context classes from a relationship between structured data and a calculation procedure, the context classes having parent-child relationships, the computer program product including instructions for causing a computer to implement a method, the method comprising: searching the calculation procedure for at least one of a data definition N 0 and an operation, wherein the calculation procedure is configured to derive Key Performance Indicators from a business operation, and wherein the context classes having the parent-child relationships are from the Key Performance Indicators; in response to identifying the operation, registering the operation for the first data definition N 0 that is an input of the operation and registering the operation for the first data definition N 0 that is an output of the operation; generating a context M 0 from a scope L 0 applied to the data definition N 0 ; tracing back the calculation procedure to obtain a data definition N 1 for calculating the data definition N 0 and to which the scope L 0 is applied; copying the calculation procedure into the context M 0 until the data definition N 1 is obtained; obtaining a scope L 1 applied to the data definition N 1 ; obtaining a context M 1 generated from the scope L 1 ; determining an existence of an order comparison of the scope L 0 with the scope L 1 ; obtaining an order from the structured data; in response to the scope L 1 being less than the scope L 0 , registering the context M 0 as a parent and the context M 1 as a child; in response to the scope L 1 being greater than the first the scope L 0 , registering the second context as a parent and the context M 0 as a child; and in response to the scope L 1 being equal to the scope L 0 , registering both the first and second contexts M 0 , M 1 as a single context class, and registering both the first and second scopes L 0 , L 1 as a single scope of the single context class, wherein in response to an inability to compare an order of the first scope with an order of the second scope, the first and second contexts, M 0 , M 1 exist independently without a parent-child relationship, wherein the scopes L 0 , L 1 each describe a level of business operations at which the Key Performance Indicators are to be monitored, the scopes L 0 , L 1 each holding a name, a level name of structured data concerning an operation, and an event mapping rule for deriving an identifier for each of the scopes L 0 , L 1 .
19. The computer program product as claimed in claim 14 wherein the method further comprises: in response to the inability to compare an order of the scope L 0 with an order of the scope L 1 , performing: replacing a name of the data definition N 0 to generate a variable, n 0 , of the context M 0 ; copying attributes of the context M 1 to the context M 0 ; and referring to a copied variable, n 1 , in the context M 0 .