19. A system, comprising: a database including a new document table with data sent from a computer associated with a first entity to a computer associated with a second entity, a previous document table with data of a design document sent from the computer associated with the first entity to the computer associated with the second entity, the design document being sent from the computer associated with the first entity before the data of the new document table, and an internal document table with validated data of the design document, at least a portion of the database being stored within a memory of the computer associated with the second entity; the computer associated with the second entity programmed to access the database and as follows: identify data of the new document table that has changed from the data of the previous document table; compare the validated data of the internal document table with the changed data of the new document table; and replace the changed data of the new document table with the validated data of the internal document table, the validated data being accessible to the second entity and not being accessible to the first entity.
19. A system, comprising: a database including a new document table with data sent from a computer associated with a first entity to a computer associated with a second entity, a previous document table with data of a design document sent from the computer associated with the first entity to the computer associated with the second entity, the design document being sent from the computer associated with the first entity before the data of the new document table, and an internal document table with validated data of the design document, at least a portion of the database being stored within a memory of the computer associated with the second entity; the computer associated with the second entity programmed to access the database and as follows: identify data of the new document table that has changed from the data of the previous document table; compare the validated data of the internal document table with the changed data of the new document table; and replace the changed data of the new document table with the validated data of the internal document table, the validated data being accessible to the second entity and not being accessible to the first entity. 22. The system of claim 19 , wherein the computer is further programmed to filter irrelevant data from the design document.