在表格中使用 itemize 时如何换行？

Question

\begin{center}
    \begin{longtable}{|p{1cm}|p{1cm}|p{1cm}|p{1cm}|p{1cm}|p{1cm}|}
    \hline
         & ABO & CPI Project & PEA & PM & VSM \\
    \hline
    Acronym & Activity based operation & Continuous Process Improvement Project & Process Excellence Assessment & Process Mapping & Value Stream Mapping \\
    \hline
    Method & \begin{itemize}
        \item Interviews with every single role with operations department
        \item Final presentation/documentation
        \item of effort starting from level 1 down to level 3
        \item Improvement potential
    \end{itemize} & Lean Six Sigma approach. Workshop together with SME's and Case by Case \begin{itemize}
        \item PMQ
        \item Process Owner
        \item IT
        \item Compliance
        \item tbd
    \end{itemize} & Interview with every local process owner together with local PMQ & Workshop together with SME's and Case by Case \begin{itemize}
        \item 
    \end{itemize}
    \end{longtable}
\end{center}