Farm managers must make numerous decisions every day. Farm management information systems (FMIS) can assist farmers in their daily collection of data, decision-making and reporting as well as in communication with stakeholders. After defining FMIS, this chapter defines functional requirements and standard modular components of FMIS. The chapter then reviews the evolution of FMIS and the role of technical architecture models which help to solve interoperability and customization challenges. The chapter concludes by reviewing future developments in digitalization and how these are affecting the evolution of FMISs.