I'm totally agree with the pipelinecontroller/decorator part. Regarding the proposal for the component parameter, I also think it would be a good feature, although it might mislead the fact that there will be times when the pipeline will fail because it is an intrinsically crucial step, so it doesn't matter whether 'continue_pipeline_on_failure' is set to True or False. Anyway, I can't think a better way to deal with that right now.