The outcome of the Mona project is to realize a roadmap for photonics and nanotechnologies. This document describes the methodology which will be used for the realization of the Mona roadmap. Roadmaps must answer a set of "why-what-how-when" questions to develop actions plan for reaching the objective. Figure 1 shows the parts of the roadmap architecture that answer the "why-what-how" questions for required actions (the "to-do" level).

The first part (the "know-why") describes the domain of the roadmap in terms of market and applications for nanophotonics. The second level ("know-what") defines the nanophotonics products which will be needed for the level 1. The third part ("know-how") can be split in two: technology and infrastructure. This part describes the evolution of the technologies and resources that will be needed to achieve the products. The fourth plan ("to-do") defines the action plan and risks. It identifies key development actions, resources required, technology investment strategy. All parts of the roadmap are laid out over time (the "when" of a roadmap).