  Some of them proposed an approach in which involved stakeholders can freely
configure the product line without being constrained by the choices made the
other ones. The core of any proposed approach in this context focuses on how
conflictual situations are resolved. Few works consider stakeholders
preferences in their resolution process. However, to generate a valid solution
satisfying all constraints, they generally rely on a process of exponential
complexity. In this work, we propose the IRatePL2C approach, which resolution
strategy relies on importance degrees assigned by the stakeholders to their
initial configuration choices. IRatePL2C starts by merging stakeholders'
configurations and then detecting and resolving the conflicts according to
their type: explicit or implicit in sequential steps. Finally, domain
constraints are propagated and the process is reiterated to reach a final valid
configuration. An illustrative example is presented to evaluate the approach.
The complexity of IRatePL2C is polynomial which an important advantage compared
with previous works.
