This is my individual part of the Case Study implementation of the 3rd Year 2nd Semester - Case Studies in Software Engineering (CSSE) module. Here we try to solve the difficulties faced in the procurement procedures in the construction industry. As a solution we have created a Web application and a mobile application, whereas this is a the Mobile Application, implemented with React-Native, NodeJS, ExpressJS and MongoDB.

Here I have implemented the part:
Once a Site Manager add a purchase order, it should be sent for Procurement Department for approval. Once it's approved they make a quotation and send it to the Supplier. Supplier can view those quotations, make a invoice and send back it to Procurement Department. Those invoices view and find the best one by Procurement Department and change the status accordingly. If the status is approved the Supplier can add delivery details. Those details can be viewed by Site Manager and then he/she can make a relevent payment.

Language

Technology

My Contribution:

• Login to the app as a Site Manager or Supplier
• Register to the app as a Site Manager or Supplier
• Create an Order by Site Manager
• View all created Orders by Site Manager
• View delivery details
• Make a payment by looking the delivery details
• View quotations by Supplier which send by procurement department
• Create invoices for quotations
• View created invoices
• Add delivery details

Screenshots of woring project:

figure 1.1: Splash Screen	figure 1.2: Register Now Screen	figure 1.3: Log In Screen	figure 1.4: Site Manager Dashboard

figure 1.5: New Order	figure 1.6: Summary of Order	figure 1.7: All Orders	figure 1.8: All Orders

figure 1.9: Delivery Details	figure 1.10: Make A Payment	figure 1.11: Supplier Dashboard	figure 1.12: View Quotations

figure 1.13: New Invoice	figure 1.14: All Invoices	figure 1.15: New Delivery Details	figure 1.16: View Delivery Details

Project Unit Testing

figure 1.1: Frontend Unit Testing	figure 1.2: Backend Unit Testing

Configuration

APP DEVELOPMENT ENVIRONMENT SETUP (Both Backend & Frontend)

• Setting up android development environment reference (One time setup for frontend only)
• npm module installation
  • run npm install

STEPS TO RUN APP IN DEBUG MODE

• Windows

  
  npx react-native run-android
  

  • If any app build failure
    • Clean gradle and run the project again cd android && gradlew clean
  • If any js bundle issues are occurred try one of the bellow steps
    • Reset npm cache and run project again npx react-native start --reset-cache
    • If above didn't work, start separate js bundler and run project npx react-native start

• Mac and Linux

  
  npx react-native run-android
  

  • If any app build or js bundler issues are occurred, follow the same steps for Windows