Method and apparatus for managing system specifications

An apparatus, comprising:

• means for identifying a first system specification defined at a first refinement level, wherein the first system specification comprises specification data;
• means for generating a second system specification at a second refinement level, wherein the second system specification inherits the specification data of the first system specification;
• means for modifying the inherited specification data of the second system specification;
• and
• means for storing the second system specification including the modified specification data.

A computer readable medium storing a software program, that, when executed by a computer, causes the computer to perform a method comprising:

• identifying a first system specification defined at a first refinement level, wherein the first system specification comprises specification data;
• generating a second system specification at a second refinement level, wherein the second system specification inherits the specification data of the first system specification;
• modifying the inherited specification data of the second system specification;
• and
• storing, in a computer readable medium, the second system specification including the modified specification data.