This report discribes to an approach to an information model, with the purpose of representing both the data of an application and the functions working on these data in an intergrated way. The model is objectoriented, especially oriented towards hierarchical structures, and have a natural language-oreinted extension. The model consists of a more general part (MOA, Model for Objects and Actions) and a contextfree grammar (GROA, Grammar for Objects and Actions), which is partly oriented towards natural language processing. Most of the concepts introduced in MOA are already established: this part serves mostly as a base and background for the grammar, GROA. The current states of both these parts are presented in the report. The work is partly built upon earlier projects that have used models for plans and actions in planrecognition and plangenerating systems. Target group: The report is intended for readers familiar with information processing and computer science.