"HALO is a whole-slide image analysis platform that is designed to work how pathologists classify & score images using a microscope. It uses a set of tools that are very familiar to anyone who has used any type of image viewing/editing program at home. It can be learned in a day to analyze brightfield & fluorescent whole slide images and TMAs. There are sophisticated tools to analyze tissues labeled by chromogenic and fluorescent IHC, RNAScope, FISH & ISH. HALO may be installed on stand-alone workstations or cloud services such as AWS. File sharing through HALO-Link lets user access studies through a simple web-interface sharing a common database. HALO AI allows any user to developing sophisticated AI based tissue classification without the need for external programs or expensive computing hardware."