Automatically deriving context when extracting a business rule

A method and associated system for automatically deriving context of a business rule that is being inferred from an information source, such as legacy computer-program source code, a system specification, or a description of a business function or operation. A first generation of context-dependent conditions upon the business rule is identified by analyzing the information source and other, related, sources, and the business rule is modified to account for this first generation of context-dependent conditions. Context-dependent conditions that place constraints upon the previously identified first-generation conditions are then identified and the business rule is further modified to account for this next generation of context-dependent conditions. This process repeats iteratively through multiple generations of identifications, until the business rule has been modified to accommodate all contextual information that may be gleaned from all analyzed information sources. These sources may include extrinsic sources like Web pages, standards, or public documents.