As a former industrial chemist who decided to learn how to code, I wanted to create a project which could combine the two things I love the most: Chemistry and Coding.

A chemical lab has a lot of equipment that needs periodic maintenance: corrective and preventive. I developed an app to help technicians to keep a record of all assets they are responsible for, including scheduling, track maintenance, tasks, and keeping a record of the work they perform.

The web application was built in Ruby, using MVC architecture, and Sinatra. Here is a class diagram I put together in UML Unified Modeling Language. I used Lucidchart to design the schema and set up everything beforehand. My primary goal was to make this app very simple and functional.

A class diagram is a type of static structure diagram that describes the structures of a system by showing the system’s classes, their attributes, methods and the relationships among objects.

In the diagram, classes are represented with boxes that contain up to three compartments: The top compartment contains the name of the class The middle compartment contains the attributes of the class The bottom compartment contains the operations the class can execute.

You can learn more about it here and how to create a class diagram is this great Youtube video.

You can see the full application on my GitHub account or live here.