Qualitative assessment:
1. Unsustainability: local stakeholders have no capacity and endogenous resources. Zero (0) out of 3 sub-criteria are met then score is 0.
2. Low level of sustainability: local stakeholders have low capacity and endogenous resources. One (1) out of three sub-criteria are met then the score is 0,33.
3. Medium level of sustainability: local stakeholders have medium capacity and endogenous resources. Two (2) out of three sub-criteria are met then score is 0,66.
4. High level of sustainability: local stakeholders have high capacity and endogenous resources. All three (3) sub-criteria are met then score is 1.
For sustainability criterion outcome indicators are identified also as part of the overall Logical Framework of indicators particularly related the (adaptive) capacity of communities to sustain the project.

Multiple outcomes

\label{multiple-outcomes} The second issue is related to the co-benefits (see section 3) or multiple outcomes and their aggregation. Whenever a specific adaptation project has multiple objectives and outcomes (and therefore potentially multiple co-benefits), these should be prioritized already in the objectives setting of the project and analyzed through the project theory of change (Figure 3).
Furthermore in order to account for potential multiple outcomes and aggregate them to one score or index, an aggregating system based on different weighted scores could be introduced. This system of aggregation applies only to criteria that may be related to multiple outcomes such as effectiveness. This system accounts for the differentiated importance of the expected outcomes. In case the multiple outcomes have equal importance the weight of each outcome will be the same which means they will have equal relative importance and contribution to the final score. In case there is a 1st priority outcome and a 2nd priority one, then their importance and contribution to the final score can be differentiated based for example on the 2/1 ratio formula (66,6% weight to the principle main outcome and 33,3% to the supplementary one).