oa_scenario oa_conversation "Repair request and measured reply" id "20472233-5ce6-5ffe-b4ad-0bdbccf3e423" {
    context @oa_restore;
    postcondition "The controller has received the measured pressure after repair";
    precondition "A pressure alarm has been assessed";
    steps [@oa_call, @oa_reply];
    viewpoint ParticipantInteraction;
}

oa_occurrence oa_call "Request valve repair" id "b97437c6-cd7a-5a05-b537-b30a17dd936a" {
    body {
        Exchange {
            exchange @oa_contact;
            message_kind Call;
            receiver @oa_responder;
            sender @oa_caller;
            values [{
                expression "420.0";
                field @oa_pressure_parameter;
            }];
        };
    };
    parent @oa_conversation;
}

oa_lifeline oa_caller "Controller" id "41859a65-ded2-547b-ab03-14e2fa740cf9" {
    parent @oa_conversation;
    represented @oa_control;
}

oa_occurrence oa_reply "Return pressure after repair" id "cc2d497a-fd15-5455-9ee5-e70eb95811d8" {
    body {
        Exchange {
            exchange @oa_contact;
            message_kind Reply;
            receiver @oa_caller;
            reply_to @oa_call;
            sender @oa_responder;
            values [{
                expression "320.0";
                field @oa_pressure_parameter;
            }];
        };
    };
    parent @oa_conversation;
}

oa_lifeline oa_responder "Technician" id "fc81c5f0-0442-5b88-992b-e5b10f351c59" {
    parent @oa_conversation;
    represented @oa_technician;
}