cmd

type Change struct {
	ItemsBefore    int // number of items before change
	ItemsAfter     int // number of items after change
	UsersBefore    int // number of users before change
	UsersAfter     int // number of user after change
	FeedbackBefore int // number of feedback before change
	FeedbackAfter  int // number of feedback after change
}

type Feedback struct {
	UserId   string  // identifier of the user
	ItemId   string  // identifier of the item
	Feedback float64 // rating, confidence or indicator
}

type ItemStringTime struct {
	ItemId    string
	Timestamp string
}

type Status struct {
	FeedbackCount int    // number of feedback
	ItemCount     int    // number of items
	UserCount     int    // number of users
	CommitCount   int    // number of committed feedback
	CommitTime    string // time for commit
}