Tracking conversations

We're working on creating our specifications for a product in drupal. For each line item we'd like to have trackable conversations. Above comments, we'd like:

• track which items have open conversations
• open polls when we think the specification is complete
• close the conversation when everyone votes yes

We're ok with doing the voting manually. Esentially we're using a bug tracking database for the conversations, so we can track open or closed issues with a particular spec page in drupal, but cross linking these is error prone.

Are there any modules that might help us in this regard?

Thank you!