The E-Learning Framework (ELF) aims to make explicit the network functions of e-learning to offer greater interoperability, and to create a common approach across the e-learning community. The LADIE ELF reference model project is mapping the Learning Activity Domain to the ELF, through the consideration of the design, construction and execution of learning activities The LADIE project combines practical teaching and learning experience, pedagogy/didactics through the DialogPlus project in addition to the needs of existing technologies. Topics to be covered and expected outcomes: This seminar will both the pedagogical and technical aspects of the project, the relationship to DialogPlus, and to give an overview of the Learning Activity Reference Model. This seminar aims to disseminate the work of LADIE reference model project, and to benefit from the viewpoints of the wider e-learning community.