account project_cost "Project Costs"
account payments "Customer Payments"{
  credits 2007-01-01 "Customer down payment" 500.0,
          2007-01-14 "1st rate" 2000.0
}

balance project_cost payments

resource tux "Tux" {
  rate 300
}
resource konqui "Konqui" {
  rate 200
}

task items "Room decoration" {
  start 2007-01-06
  # The default account for all tasks
  chargeset project_cost

  task plan "Plan work and buy material" {
    # Upfront material cost
    charge 500.0 onstart
    length 2d
  }
   task remove "Remove old inventory" {
    allocate tux
    allocate konqui
    effort 1d
    depends !plan
  }
  task implement "Arrange new decoration" {
    effort 5d
    allocate tux, konqui
    depends !remove
  }
  task acceptance "Presentation and customer acceptance" {
    duration 5d
    depends !implement
    chargeset payments
    # Customer pays at end of acceptance
    charge 2000.0 onend
  }
}