paper 1 : flow diagram dot notatoin code

 digraph IntegrationProcess {

    // Define nodes

    node [shape = rectangle, width=2.5, height=1.5, fontname=Arial]; // Adjusted box size and styling

    // Define labels with different colors

    S4HANA [label = "SAP-S/4HANA", shape = oval, style=filled, fillcolor=lightblue, fontcolor=black];

    TPM [label = "CPI-TPM", shape = rectangle, style=filled, fillcolor=lightyellow, fontcolor=black];

    FAIFlow [label = "CPI-CustomIflow_FA", shape = rectangle, style=filled, fillcolor=lightyellow, fontcolor=black];

    TradingPartner [label = "EDI-Trading Partner", shape = rectangle, style=filled, fillcolor=lightpink, fontcolor=black];

    // Define connections

    S4HANA -> TPM [label = "1. Sends IDOC DESADV", fontname=Arial];

    TPM -> FAIFlow [label = "2. Forward EDI msg", fontname=Arial];

    FAIFlow -> FAIFlow [label = "4. Save IDOC Number\nwith correlation id", fontname=Arial];

    FAIFlow -> TradingPartner [label = "3. Msg to EDI partner", fontname=Arial];

    TradingPartner -> FAIFlow [label = "5. Sends Functional Acknowledgment", fontname=Arial];

    FAIFlow -> TPM [label = "6. B2B Monitoring FA", fontname=Arial];

    FAIFlow -> FAIFlow [label = "7. Validate\nEDI FA with\ncorrelationid", fontname=Arial];

    FAIFlow -> S4HANA [label = "8. Sends IDOC STATUS\nmessage to SAP S/4HANA", fontname=Arial];

}