Computer-assisted reviewing (CAR) tools are pieces of software based on text-comparison and analysis algorithms.
[1] These tools focus on the differences between two documents, taking into account each document's typeface through an intelligent analysis.
The intelligent analysis used by CAR tools detect the differences do not have the same value depending on their type and/or the document field/subject.
This implies to be able to match each part of text from one document to the other, taking into account the specificity of each language: date/number formats, punctuation (for example, French/English quotation marks), etc.
The best CART tools are able to find matches between noun or verbal groups, this implying to find terminological and syntactical elements using linguistic analyzers.