1. A non-transitory computer readable medium including code that is executed by a computer system comprising one or more processors, a main memory, a secondary storage, a communications bus, one or more input or output devices, and a network interface to perform a method of managing relevance of a plurality of project description (PD) documents with respect to a plurality of request for proposal (RFP) documents, said plurality of PD documents stored in a data store, the method comprising: receiving using at least one of said input devices, said communications bus, or said network interface an RFP document; creating using said one or more processors an RFP-document decomposition by decomposing said RFP document into RFP segments; establishing using said one or more processors hierarchical relationships for said RFP-document decomposition comprising contains-as-a-segment relationships, is-a-segment-of relationships, or both said relationships between said RFP document and said RFP segments; determining using said one or more processors a PD-document-to-RFP-segment relevance for a PD document from said plurality of PD documents and said RFP segments using document similarity processing and a metric, wherein said determining said PD-document-to-RFP-segment relevance comprises creating a relevance matrix R 1 of dimensions 1 by M, where M is a number of said RFP segments, and populating each element R 1 [1, m] of said relevance matrix R 1 with a relevance value produced by said document similarity processing and said metric that represents a similarity of said PD document to a corresponding RFP segment m of said RFP segments; aggregating using said one or more processors said PD-document-to-RFP-segment relevance by said hierarchical relationships for said RFP-document decomposition to produce a PD-to-RFP relevance, wherein said aggregating comprises performing a summation by said dimension M of said element R 1 [1, m] relevance values of said relevance matrix R 1 ; and transmitting using at least one of said output devices, said communications bus, or said network interface said PD-to-RFP relevance, said PD-document-to-RFP-segment relevance, or both said relevances to an originator of said RFP document.