The Nestor Graphical User Interface (GUI) is a free toolkit that helps maintainers annotate their Maintenance Work Order (MWO) data through a process called "tagging". The MWOs are inputted as comma-separated variable (.csv) files with UTF-8 encoding into the Nestor GUI and the user goes through the tagging process to create an annotated, tagged MWO dataset. Nestor is a toolkit for using Natural Language Processing (NLP) with efficient user-interaction to perform structured data extraction from these MWOs with minimal annotation time-cost.
Once the data is annotated using the Nestor GUI, users can use this data for different analysis, such as major problem identification and skill assessment of technicians and operators. A complimentary Nestor dashboard is under development to help with pattern identification and can be tested by using this Dashboard Guide.