I am a Software QA. I am doing this from last 3 years. I have tested many desktop, web and mobile applications. Let me tell you some of them, HRMS (Human Resource Management System - Web application, This application was implemented to a paper manufacturing unit for maintaining HR works and task management for every employee or machine of the unit.), HMS (Hotel Management System - Web application, This application was implemented to Hotels Chain for managing their customers and employees all over world), POS (Point of Sale - This software was implemented to a mall, restaurants and super market. it works with prepaid cards. So, it is maintaining Accounts data, Stock/Store data and Customer profile and discounts for regular or irregular customers. This software is having two versions Web and Desktop. Desktop version is for billing management and web version is for accounts management and Add balance to prepaid card with customer profiles.) Leave-Time - This android i was developed for HRMS. Any of the company employee can use it for requesting their leaves and they can also check their working hours any time, HR department can easily approve or reject leaves by just one click from smart phone. Many features are there in the application for making the employee life easy.