This is the minimum set required for the first release
Task
Reward
Quality
Crowd

Task

• CRUD
• start (change the status)
• stop (change the status, stops all instances)
• create instance
• assign instance (id, user) : assign the instance to a precise user
• startInstance (data,id)
• stop Instance(data id)
• execute instance (result)
• expire (expires all instances)

Reward

• CRUD
• give (id of the task instance)
• reject (id of the task instance) - not sure we need this
• apply penalty (reject + charge worker)

Quality

• automatically generated programmatic gold
• post-submit / pre-submit control of responses
• calculation of confidence level / agreement level
• set (id of the task instance, value)
• get (id of the task instance)

Crowd:

no idea

• notifications about new task/s
• interaction between worker - requestor