1. A method of determining a document type associated with a digital document, the method executable by an electronic device, the electronic device including: a digital document interface for acquiring the digital document to be processed; a data storage device; a processor coupled to the digital document interface and to the data storage device, the processor being configured to execute a plurality of machine learning algorithm (MLA) classifiers, each of the plurality of MLA classifiers having been trained to identify a respective document type; the data storage device being configured to store processing data for the plurality of MLA classifiers and an indication of a hierarchical order of execution of the plurality of MLA classifiers; the method comprising: acquiring, via the digital document interface, the digital document to be processed; executing, by the processor, a first MLA classifier of the plurality of MLA classifiers in an attempt to determine the document type for the digital document, the first MLA classifier being associated with an earliest placement in the hierarchical order of execution; determining, by the processor, if the determined document type outputted by the first MLA classifier is one of first MLA classifier confidently predictable document types; in response to the determined document type outputted by the first MLA classifier being one of first MLA classifier confidently predictable document types: assigning, by the processor, the document type outputted by the first MLA classifier to the digital document; in response to the determined document type outputted by the first MLA classifier not being one of first MLA classifier confidently predictable document types: executing, by the processor, a second MLA classifier of the plurality of MLA classifiers in an attempt to determine the document type for the digital document, the second MLA classifier being associated with a placement in the hierarchical order of execution immediately following that of the first MLA classifier.