los usuarios que hay son Supervisor , Administrador, Empleado los tres usuarios inician sesion , cierran sesion , el supervisor verifica las ventas,ve las ganancias por producto, ve las compras vender productos dar de alta productos dar productos de baja poner precio a productos dar de alta usuarios dar de alta clientes regresar productos agregar promociones eliminar promociones modificar precios ver precios de adquisicion ver compras por mes , semana , ano ver ventas por mes , semana , ano
Sistema para venta de electrodomesticos
Usuarios: supervisor, administrador, empleado
Requerimientos dar de alta productos dar de baja productos vender productos regresar productos iniciar session cerrar session modificar precio de compra modificar precio de venta vender productos comprar productos ver resumen de venta ver resumen de adquisiciones
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