val scn =
     feed(Common.feeder)
       .exec(
        http("GetDecisionTree")
       .exec(
            http("CalculatePriceFromDefaultModel") )
          .pause(2 seconds)
          .exec(
            (s: Session) => {
               val config = parse((s("result").as[String]))
               config.model.configuration.name = Utils.getNewUuid
               s.set("calculationResult", render(config))
             })
          .exec( http("SaveConfiguration"))
          .pause(1 seconds)
          .exec( http("Add Group"))
          .exec(http("Add config to group"))
          .pause(2)
          .exec(http("DeleteConfiguration"))
          .pause(1)
          .exec(http("Delete Group"))


   val sr=scenario("test").during(60 seconds) {  scn   }
   setUp(sr.inject( atOnceUsers(3)).protocols(Common.decTreeConf))