arcadia 7;
project alarm_suite "Alarm response" id "a0f5c4c2-f39c-4095-9816-71f1862e24d8" {
    description "A complete small OA/SA source-authoring example. Numerical annotations are descriptive. Literal aliases: @alarm_response; @maintenance; @alarm_message; @response_view; @detector_card; @response_procedure; @assessment_refinement;";

    oa_actor plant_operator "Plant operator" id "60539571-2921-4e7d-ab83-bae670d0cb15" {}
    oa_entity maintenance_staff "Maintenance team" id "6af96577-1b04-4ba1-b91b-6cef61adc6d6" {}
    oa_activity manage_alarm "Manage a pressure alarm" id "4154bf39-9fd5-490e-aebf-fba3d67b697c" {
        oa_activity detect_alarm "Detect alarm" id "bf9e9d8a-edb2-47f4-93f9-7ae373c42160" {}
        // Assessing the alarm is work decomposition, independently allocated below.
        oa_activity assess_alarm "Assess alarm" id "8cbd5a4f-1c31-49c9-8a01-987144ce962e" {}
    }
    oa_capability safe_response "Respond safely" id "c097b1b5-45dc-49de-bcf6-89b5ccb752d1" {}
    oa_exchange_item alarm_report "Alarm report" id "0a48a460-964a-4578-97c4-428707e8b201" {
        mechanism Flow;
        oa_data_field reported_pressure "Reported pressure" id "0bf7f442-cc8d-4782-ba65-f357e91fd477" {
            type_ref Real;
            unit "kPa";
        }
    }
    allocation operator_detects "Operator detects" id "8653fb7d-529d-495d-abde-897dee36b4bb" {
        source @plant_operator; target @detect_alarm;
    }
    allocation team_assesses "Team assesses" id "bb36afbf-9878-401b-b172-d04b08ecf603" {
        source @maintenance_staff; target @assess_alarm;
    }
    interaction alarm_payload "Pressure alarm report" id "269e5bdd-2478-4a43-9c77-84d99ac4e8a6" {
        source @detect_alarm; target @assess_alarm; items [@alarm_report];
    }
    capability_involvement assessment_supports_response "Assessment supports safe response" id "27633a6d-d962-4d19-9367-9ca3f00de0b0" {
        source @assess_alarm; target @safe_response;
    }

    oa_process triage "Alarm triage" id "9888d781-09f3-4861-b9dc-7a97080d24d6" {
        steps [@detect_once, @assess_once];
        oa_occurrence detect_once "Detect this alarm" id "6ca87cbe-9579-49b3-884e-e6ee63ba8c5b" {
            body { Action { action @detect_alarm; lifeline none; }; };
        }
        oa_occurrence assess_once "Assess this alarm" id "528d1c78-62d9-4e45-bb4a-cf529d8ed4a9" {
            body { Action { action @assess_alarm; lifeline none; }; };
        }
    }
    sequence_link assessment_after_detection "Assess after detecting" id "bfd9c0e7-832b-4983-90aa-fc37d23193e2" {
        source @detect_once; target @assess_once;
    }
    chain_involvement triage_supports_response "Triage supports safe response" id "2aeba184-bf69-49c7-87ff-cc2da82b006c" {
        source @triage; target @safe_response;
    }

    oa_scenario notification "Alarm notification" id "69e23f04-7bb3-4db1-a2a3-d8e65101c546" {
        viewpoint OperationalActivity;
        context @safe_response;
        steps [@notify_once];
        oa_lifeline detector_line "Detector" id "57c62024-6d19-4818-ac8c-66fb4a9b3da7" { represented @detect_alarm; }
        oa_lifeline assessor_line "Assessor" id "1b421446-9d17-4c8b-90f1-6fbe8b513a04" { represented @assess_alarm; }
        oa_occurrence notify_once "Report this pressure" id "a1c37b31-41ed-4e16-a243-a50702ff1bc1" {
            body { Exchange {
                exchange @alarm_payload; sender @detector_line; receiver @assessor_line;
                message_kind Asynchronous; reply_to none;
                values [{ field @reported_pressure; path []; expression "420"; }];
            }; };
        }
    }

    sa_system alarm_console "Alarm console" id "9ea585b5-be12-4204-8909-02ea9bed49f0" {
        sa_state_machine console_status "Console status" id "a6c6f463-5c80-4b02-a2e6-67cd0088b2f2" {
            sa_region console_region "Main region" id "e8b62edc-2233-4ec4-a811-2e8baf81a6e9" {
                sa_initial console_start "Start" id "5a92c3a8-6af5-452a-849e-c2a17dc33260" {}
                sa_state console_ready "Ready" id "9064a197-96ea-4bdf-9dd6-2e9ef66856d8" {}
                sa_state console_alerting "Alerting" id "4d167878-2bbe-4acd-abd6-ee7dcd42ec50" {}
            }
        }
    }
    sa_function classify_alarm "Classify alarm" id "ad6941ee-f900-4a2b-a368-d8879f1ffece" {}
    sa_functional_chain classification_flow "Alarm classification" id "578dbcd5-3c28-43d8-913e-af27bc51ebde" {
        steps [@classify_once];
        sa_occurrence classify_once "Classify this alarm" id "a6c37863-8e72-44f9-a8a3-fea06341c714" {
            body { Action { action @classify_alarm; lifeline none; }; };
        }
    }
    allocation console_classifies "Console classifies" id "294d4262-303f-41db-b01e-fe47c1647693" {
        source @alarm_console; target @classify_alarm;
    }
    sa_event alarm_received "Alarm received" id "7fba860a-721f-4da2-8315-010de2e9c69e" {}
    state_transition initialize_console "Initialize" id "839d4359-c78f-414b-867e-5b40b1f145cc" {
        source @console_start; target @console_ready;
    }
    state_transition display_alarm "Display alarm" id "dd383165-1b89-46b9-8ae3-80a6b6406a4e" {
        source @console_ready; target @console_alerting; triggers [@alarm_received];
    }
    trace assessment_alignment "Alarm classification refines assessment" id "34142333-67c2-4972-a64f-47e140ed93ca" {
        oa @assess_alarm; sa @classify_alarm;
        baseline {
            oa { name "Assess alarm"; description ""; };
            sa { name "Classify alarm"; description ""; };
        };
    }
    artifact response_handbook "Response procedure" id "6ba54037-c6f1-495b-ba96-6f2e910a218c" {
        owner @assess_alarm; uri "procedures/alarm-response.md"; revision "review-1";
    }

    diagram response_map "Operational work" id "a44d9d69-78a0-49de-8eb8-3757aa6c0919" { projection FunctionalDataflow; }
    node detector_tile id "45f016f4-3558-45b9-9559-da8ef9d5dcad" {
        diagram @response_map; element @detect_alarm;
        position { x 40; y 40; };
    }
    node assessor_card id "6ee7a0cc-013b-4a0f-8cff-513872e028b7" {
        diagram @response_map; element @assess_alarm;
        position { x 400; y 40; };
    }
}

// Retain these comment references: @alarm_response; @maintenance; @alarm_message; @response_view; @detector_card; @response_procedure; @assessment_refinement;