WBS

planning Day

$1\mathrm{.}1$ Plan the Tasks

$1\mathrm{.}2$ Day, Time & Cost

$1\mathrm{.}3$ Staff, Student & Guests

$2.$Arrangement & Design

$2\mathrm{.}1$ Arrange the Place

$2\mathrm{.}2$ Arrange the food

$2\mathrm{.}3$ Arrange the stage & area

Invitation Plan

$3\mathrm{.}1$ Guests Invitation

$3\mathrm{.}2$ Send the invitation