Trust in the facilitation and fellow participants.
Diversity of ideas.
The larger the number of participants.
Diversity of people.
The greater the education of participants on the issue.
The higher the quality of information available about the issue.
The more participants have something at stake from the outcome.
The more cohesive the spirit of co-operation and common aims within the group.
The more support the people with authority and trust give to the process.
The larger the number and wider the variety of well thought out proposals.
The more the amount of time for deliberation, reflection and reformulation of proposals.
The better ability of participants to recognize and discuss important patterns in the results.
The higher the number of iterations of the process. Each stage reflects on previous results and learns from new investigation.
The increased number of repetitions of similar and related questions over time and within different contexts. Recognize the continuity and differences among results.
The more trusted, knowledgeable and experienced the final decision-making persons.
The more useful the concluding action plan.
Each of these factors is rather subjective, but as one becomes more experienced at dotmocracy facilitation it will become more apparent which factors need more attention depending on the situation.