The course is designed to cover a broad range of geotechnical data from instrumentation, testing and rock mass characterization including stress measurement data. Emphasis is placed on data interpretation and the role of statistics in geomechanics for design, research and operational management. Throughout the course, practical examples of the use and misuse of data, including empirical databases will be emphasised to demonstrate the importance of understanding data before its application in design and numerical modelling. Assessment in the course will consist of a series of assignments outside lectures and an in-class examination for proof of practical competence and understanding in all of the above areas.