Given the current need of the professors as .LRN users of having a tool that lets them define and set up the workflow of their courses and a synchronization and interaction between different roles of an e-learning experience, the imsld package provides the support to fullfill these needs, making use of the IMS Learning Design (from now on referred as IMS LD). We recommend to read the IMS LD specification in order to understand better this document. If you are already familiarized with the specification, continue reading this document, otherwise you can take a quick introduction by reading our very short introducion to IMS LD)