[jclos]

Yes I expressed myself badly. I meant risk mitigation plan. Usually in grant proposals we are asked to identify what are the major risks (in terms of incidence x impact) for each work package and produce a mitigation plan in case it happens.

[yuriynii]

Right, it's more clear now. As mentioned, Gantt chart functionality is being worked on. As for the rest, I feel that your use-case could indeed be expressed in YOTEY. Especially diagram items have deliberately free interpretation to model various, potentially abstract, entities and their relations. Thank you for the thoughts.