System Cost Calculation

This project is a side project I have worked on for my dad who designs fire-fighting system. He asked me to create a demo application for creating record of purchase and order for the parts/items needed for a particular system. At the same time, there are different suppliers who may have different pricing for the items they provide.

For the application, I experimented and used a Model-View-ViewModel (MVVM) architecture approach to organise the structure. Similarly, the idea is to separate responsibilities for each parts that makes the application. The application also make use of commands to listen for events such as user inputs so that changes in views can be invoked as soon as possible. Additionally, it uses SQLite to manage the backend of the application.

The main features of the application includes:

• Basic Create, Read, Update and Delete (CRUD) operations for items, suppliers and templates
• Assign items and set pricing for the items for different suppliers
• Add and delete items from different suppliers into the template where it will calculate the cost of building the system
• Modify item quantity and discount in templates
• Templates will get saved in a text file and can be viewed/edited within the application