ABSTRACT
In this chapter we present some typical programs implementing methods from Formal Concept Analysis, each with some historic context and an overview of its main features. The idea is to give an impression of what the programs can do and how they are used; we are not attempting to replace the user manuals. The exercises for this chapter will apply these tools to concrete problems. We start with three that are aimed at practitioners of Formal Concept
Analysis: ConExp is a generic, full-featured tool for editing formal contexts and creating line diagrams; ConImp allows the investigation of implications in data, even in the case that the investigator does not have complete knowledge of the domain; and the ToscanaJ suite allows the creation of conceptual information systems, which can be deployed for users without experience with Formal Concept Analysis. The fourth program is an example of an application using Formal Concept
Analysis but aimed at a much more general audience: Docco allows querying a local store of documents, supporting the retrieval of searched items by line diagrams. We conclude with a brief list of related programs and tools that we could not present in detail here.
