Dynamically reconfigurable code execution architecture for building diagnostic algorithms

Methods and apparatus are provided for building and executing reconfigurable algorithms in on-board environments which require pre-certification of the compiled code, such as avionics, flight control, and military applications. The code execution architecture includes a library of reusable function modules in the form of pre-compiled code blocks; an algorithm execution utility (AEU) for processing a user-assembled string of code blocks; and a customer interface for selecting code blocks, defining their associated parameters and sequence (execution order), structuring inputs and outputs, and for providing the integrated, machine readable application to the AEU at run time. The various sequences, permutations and combinations of functions and their associated parameters, inputs and outputs are pre-approved or certified a priori; consequently, the on-board reconfiguration and execution of complex algorithms may be performed in real time without the need for recoding, verification, or redeployment of the code base.