When designing an imperative business process (BP) model,
analysts have to face many design requirements (e.g., managing uncertainty,
optimizing conflicting objective functions). To facilitate such
design, declarative BP models are increasingly used. However, how to
execute a given declarative model can be quite challenging since there are
typically several variants related to such model, each one presenting
different degree of goodness. To support users working on declarative
models while a high flexibility is maintained, we propose removing the
worst variants from the source declarative model at design time while
keeping the best variants. This way, the variants which are kept are narrowed
down incrementally during run-time. For managing these variants
during run-time we suggest to build upon configurable BP models. To
configure such models, we additionally propose to automatically generate
questionnaires. The results over a real case study are promising
