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Generally speaking DIAMS has been an opportunity to secure the feasibility of the IOD in technical, programmatic and financial terms. More specifically DIAMS has allowed to define the end-to-end mission concept for this IOD, covering the design of various associated segments : Space Segment (Payload, Platform), and Ground Segment. Both interest and programmatic aspects have also been consolidated.

- On the technical plane :
Both the requirements and the design of the system have been refined to validate the IOD concept :

Biomass burning is a key Earth system process, a major element of the terrestrial carbon cycle and a globally highly significant source of certain atmospheric trace gases and (primarily fine mode) aerosols. Natural and anthropogenic biomass burning occurs on all continents except Antarctica, with an estimated average of 3.5 - 4.5 million km2 of vegetation burnt in global wildfires each year (though this does not include the very large numbers of "small" agricultural fires that are difficult to map using current coarse spatial resolution remote sensing datasets).

While most Earth Observation missions based on passive optical methods are intended to measure the light “reflected” by the surface, FLEX uses a completely innovative approach based on the measurement of the light “emitted” as fluorescence by terrestrial vegetation. Such fluorescence emission by vegetation has never been measured from space, which makes FLEX a true Explorer mission providing a type of information never available before.

In conclusion this Phase A-B1 study contract has provided:
• Confirmation that the mission concept described in phase 0 is feasible and relevant
• Consolidation of mission objectives and mission requirements
• An updated mission architecture and system design solving many of the problem areas identified in Phase 0
• A roadmap for distribution of relevant documentation and tools to experimenters throughout the project