mermaid
flowchart TB
    Start(Start) --> Research[Research Market]
    Research --> ProductDev[Product Development]
    ProductDev --> AlphaTest{Alpha Testing}
    AlphaTest --> BetaTest{Beta Testing}
    BetaTest --> LaunchPrep[Launch Preparation]
    LaunchPrep --> Launch[Launch Product]
    Launch --> PostLaunch[Post-Launch Analysis]

    %% Styling nodes
    classDef startend fill:#f9f,stroke:#333,stroke-width:4px;
    class Start,Launch,PostLaunch startend;

    %% Styling flows
    linkStyle 0 stroke:#f66,stroke-width:2px;
    linkStyle 5 stroke:#f66,stroke-width:2px;