mermaid
stateDiagram-v2
    direction LR
    classDef bold fill:#f9f,stroke:#333,stroke-width:2px,font-weight:bold
    classDef italic fill:#f9f,stroke:#333,stroke-width:2px,font-style:italic
    classDef underline fill:#f9f,stroke:#333,stroke-width:2px,text-decoration:underline

    [*] --> Source:::bold
    Source --> Encoder:::bold
    Encoder --> Channel:::bold
    Channel --> Decoder:::bold
    Decoder --> Destination:::bold

    Source --> Source_Text:::italic
    Encoder --> Encoded_Text:::italic
    Channel --> Transmitted_Text:::italic
    Decoder --> Decoded_Text:::italic
    Destination --> Destination_Text:::italic

    Source_Text --> Encoder
    Encoder --> Encoded_Text
    Encoded_Text --> Channel
    Channel --> Transmitted_Text
    Transmitted_Text --> Decoder
    Decoder --> Decoded_Text
    Decoded_Text --> Destination
    Destination --> Destination_Text

    Source_Text --> Channel : "Original Text"
    Encoded_Text --> Decoder : "Received Text"
    Transmitted_Text --> Destination : "Decoded Text"