This template displays the Work Breakdown Structure of an e - book application project. At the top - level is "E - book application Project". It is broken down into five sub - tasks:"Project Initiation" includes "Research" and "Requirements gathering", laying the groundwork for the project."Design phase" consists of "UI/UX design" and "Database design", planning the application's interaction and data storage."Development phase" is divided into "Front - End Development" and "Back - End Development", implementing the application's functions and interface."Testing phase" contains "Usability Testing" and "Security Testing" to ensure the application's usability and security."Launch phase" is simply "Deployment", releasing the application to the market.This WBS helps the project team clearly understand the task hierarchy, allocate resources reasonably, and plan the schedule effectively.