Case study

Package Management System

Parcel management system for registering packages, tracking delivery status, managing transport lists, and visualizing statistics.

Role

Java web development, Servlet/JSP architecture, AJAX interactions, persistence, and statistics visualization.

  • Java
  • Hibernate
  • Servlets
  • JSP
  • HTML
  • CSS
  • JavaScript
  • AJAX
  • MySQL
  • Chart.js
Package Management System cover screenshot

Context

Project overview

The package management system models a transport flow where packages must be registered, followed, updated, and analyzed.

Problem

Parcel workflows need structured package registration, delivery status tracking, transport list management, and operational visibility.

Objectives

  • Dynamic package tracking and status updates without full page reloads using AJAX.
  • DAO, service, and controller separation supports maintainability.
  • README includes UML, database diagrams, and demo video.

Solution

What was built

Built a Java web application with Servlets, JSP, Hibernate persistence, AJAX status updates, and Chart.js statistics.

Why this approach

Servlets, JSP, Hibernate, and DAO/service/controller separation were used to keep the Java web application structured.

Architecture

A structured view of the technical blocks and responsibilities planned in the project.

Frontend

Frontend

JSP, HTML, CSS, JavaScript, AJAX, and Chart.js for package screens, updates, and statistics.

Backend

Backend

Java Servlets with controller, service, and DAO separation for package and transport workflows.

Database

Database

MySQL persistence with Hibernate for package, transport, and status data.

Authentication

Authentication

Authentication is not presented as the central feature; package status workflows and management operations are the focus.

Integrations

Integrations

Chart.js statistics, AJAX updates, UML diagrams, database diagrams, and README demo video.

Technical challenges

  • Keeping package status updates clear and consistent.
  • Separating controller, service, and DAO responsibilities in a Java web app.
  • Presenting operational statistics with Chart.js without overcomplicating the UI.

Engineering decisions

Dynamic package tracking and status updates without full page reloads using AJAX.

DAO, service, and controller separation supports maintainability.

README includes UML, database diagrams, and demo video.

Quality & testing

Quality is presented as a progressive engineering approach: targeted tests, readability, static analysis, and documented decisions.

Testing approach

The project documents its system design with UML and database diagrams and uses AJAX to improve interaction flow.

Maintainability and analysis

  • Readable architecture and separated responsibilities

Results

  • UML, database diagrams, and demo video are available in the repository README.
  • The project demonstrates Java web architecture and AJAX-driven interactions.
  • No production logistics usage or delivery metrics are claimed.

Lessons learned

These takeaways turn the project into evidence of technical reasoning, not just a feature list.

  • Turn "Parcel workflows need structured package registration, delivery status tracking, transport list management, and operational visibility." into explicit technical decisions.
  • Present trade-offs clearly so an engineering team can review the reasoning.
  • Connect architecture, testing, and maintainability to a concrete problem.