The PLEIADES project aims at demonstrating a digitally enhanced approach for a set of key decommissioning and dismantling (D&D) tasks in real life examples from selected projects in Europe. The PLEIADES project proposes to improve the D&D process, enabling more efficient and coordinated actions, by integrating state of the art digital concepts into a coherent ecosystem. The project will produce a prototype platform where digital solutions provided by partners of PLEIADES are interconnected through a Building Information Modeling (BIM) based interface. Demonstrations will include scenario simulation-based analyses and comparison of jobs in terms of feasibility, waste produced, radiation exposure, cost and duration. The core technical concept of PLEIADES is a nuclear decommissioning specific ontology providing a bridge between cutting-edge digital support tools into a BIM-based integrated platform adapted to practical needs in D&D processes. The platform will be applied through systematic demonstration exercises based on real-life experiences aiming at demonstrating applicability, as well as quantifying efficiency and needs for future developments. Ultimately, the project aims at proving a new innovative methodology for optimization of D&D strategies from a safety, cost and efficiency perspective through providing a first prototype of a tool to be provided to the industry jointly by the partners of the project.