1. A processing system for managing actual data compiled in a field document, the actual data documenting the performance of at least one component of a complex project, the system providing a platform for a workflow process designed to facilitate the preparation for and performance of the complex project conducted between parties, the processing system comprising: a memory for storing a modular data array, the modular data array further comprising: a standard data array module correlating to a standard data input interface of the field document, the standard data input interface for receiving input of standard actual data to populate the standard data array module; and at least one optional data array module correlating to a respective optional data input interface of the field document, the respective optional data input interface for receiving input of optional data to populate the at least on optional data array module; wherein the at least one optional data array module and the correlative data input interface are added to the workflow process as a conjunct to the standard data array and correlative standard data input interface; a processor controlling the interface means and the memory; a communication network connecting the parties to the processing system; and an interface means connected to the communication network for recording an action of at least one of the parties taken with respect to the field document.