Computing device for convergent document collaboration

A computing device comprising a processor, wherein the processor is configured to carry out a method comprising:

• receiving, from a server connected to the computing device, at least a portion of a causal tree structure corresponding to a document, wherein the causal tree structure is stored on the server and comprises a sequence of editing instructions and each editing instruction is assigned an identifier unique to such editing instruction;
• storing the portion of the causal tree structure;
• receiving a user editing instruction for the document;
• assigning an identifier to the user editing instruction;
• transmitting, to the server, the user editing instruction and the identifier assigned to the user editing instruction;
• receiving, from the server, another user editing instruction for the document and an identifier assigned to the other user editing instruction;
• storing the user editing instruction and the identifier assigned to the user instruction, and the received other user editing instruction and the received identifier as additional nodes to the portion of the causal tree structure;
• and
• rendering the user editing instruction and the received other user instruction on a display device.

A computing device comprising a processor, wherein the processor is configured to carry out a method comprising:

• receiving, from a server, at least a portion of a causal tree structure corresponding to a document, wherein the causal tree structure comprises a sequence of nodes, and each node comprises an editing instruction and an identifier unique to such editing instruction;
• storing the portion of the causal tree structure;
• receiving a user editing instruction for the document;
• assigning, using a processor of the client device, an identifier to the user editing instruction;
• transmitting, to the server, the user editing instruction and the identifier assigned to the user editing instruction;
• receiving, from the server, another user editing instruction for the document and an identifier assigned to the other user editing instruction, wherein the user editing instruction and the other user editing instruction share a cause identifier, and the cause identifier is an identifier of a prior editing instruction in the causal tree structure that precedes both the user editing instruction and the other user editing instruction;
• storing the user editing instruction and the received other user editing instruction as additional nodes to the portion of the causal tree structure;
• and
• rendering the user editing instruction and the received other user instruction, wherein assigning the identifier to the user editing instruction comprises
• assigning a site identifier unique to the user's editing session on the client device, and
• assigning a stamp, which is a numeric value based on identifiers assigned to editing instructions in the causal tree structure stored on the server.