Abstract: In one aspect, a method for automatically implementing merging of online changes to a document tree of a web page document includes the step of providing a document tree TO representing a web page document. The method includes the step of providing actors A and B. The method includes the step of detecting that actor A changes a copy of TO to create a new document tree TA. The method includes the step of detecting that actor B makes a different change to another copy of TO to create a new document tree TB. The method includes the step of flattening the document tree TO (resp. TA and TB) to generate a sequence SO (resp. SA and SB) of atoms, wherein each atom of the sequence comprises an individual character of the document tree TO (resp. TA and TB).

Abstract: In one aspect, a method for automatically merging changes to a web page document, includes the step of providing an object of a web page document. The method includes determining an object type of the object of the web page document. The web page document is coded in a markup language. The method includes selecting a set of attributes of the object type that are to be taken into account during a merging operation involving a plurality of changes to the object. Given the object of the object type, the method includes receiving a plurality of changes to the object. The plurality of changes comprises a first set of changes and a second set of changes. The method includes the step of generating a key-value mapping for an original object. The set of attributes is used to associate with the object a key-value mapping.

Abstract: In one aspect, a method for automatically merging changes to a web page document, includes the step of providing an object of a web page document. The method includes determining an object type of the object of the web page document. The web page document is coded in a markup language. The method includes selecting a set of attributes of the object type that are to be taken into account during a merging operation involving a plurality of changes to the object. Given the object of the object type, the method includes receiving a plurality of changes to the object. The plurality of changes comprises a first set of changes and a second set of changes. The method includes the step of generating a key-value mapping for an original object. The set of attributes is used to associate with the object a key-value mapping.