Based on the given listing, make a Work Breakdown Structure (WBS). Draw the WBS (top-down approach)

Integrated Management Information System (name of system)

Task 1.Internet Data Center Construction

Sub-task 1.Equipment Sourcing

1. Order
2. Inspection
3. Acception Check

Sub-task 2. Construction

1. Design Detail
2. Site Construction
3. Inspection & Acceptance

Task 2.Requirements

Sub-task 1. Research

1. Finance System
2. IT System
3. Mailing System

Sub-task 2,Assessment

1. Demand Review

Task 3.System Coding

Sub-task 1. Integrated System

Sub-task 2. Unit Testing

Sub-task 3. Inspection & Acceptance

Task 4.Execution

Sub-task 1. System Testing

Sub-task 2, Training

Sub-task 3. Project Acceptance