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Internal Consumables Accounting System

Summary

Status

partial implementation / historical project

Role

initiator, concept author, prototype developer

Stack

Type: Internal automation / early ERP-like inventory system; Period: early transition stage from infrastructure administration to internal systems development

Project value

A lightweight internal ERP-like system for IT department consumables accounting - tracking stock levels, material movement history, and procurement planning.

What this demonstrates

ExpendIt demonstrates my early transition from an infrastructure-focused role to internal systems development and system analysis.

The project already contained elements that later became part of my professional profile:

  • analysis of a real operational pain point;
  • identification of domain entities;
  • an attempt to build an accounting model;
  • intention to replace a manual process with a structured system;
  • practical automation for internal users;
  • attention to data, operation history, and planning.

The project was not completed as a mature product, but it became an important step toward systems thinking, software development, and my later transition into systems analysis.

Quick reading path

  1. Overview - product summary and technology stack
  2. Context - operational pain point
  3. Architecture - layered modular monolith
  4. Data Model - class diagram
  5. All-in-one - full case study in one page

Document assemblies

  • All-in-one - all sections assembled for sequential reading and export
  • Architecture review - goals through decisions for architecture review sessions
  • SRS pack - context through operations for SRS-style review
  • Demo pack - overview, role, architecture, decisions, roadmap, and demonstration

Full structure