01 · Overview
Overview
A sales and stock-tracking program I built for Otoeko in my first year of university, as a job offer. The goal was to let small businesses sell quickly and keep stock on a single computer.
Otoeko · 1st-year university
Quick Sale & Stock Program
A comprehensive sales and stock-tracking program I built for Otoeko on a job offer in my first university year — running file-based, with no database engine at all.
- Role
- Sole developer
- Period
- 2020
- Field
- Web, desktop and mobile
- Status
- Otoeko · 1st-year university
Tech stack
- C#
- .NET WinForm
- Katmanlı Mimari
- XML (veritabanısız)
02 · Solution
Solution & Architecture
The interesting constraint: I used no database engine (no SQL/SQLite) — all data was kept in a file-based (XML) structure. Even so, I delivered product cards, stock in/out, stock-movement history, advanced search/filter, barcode, PDF/print reports, FTP sync and backup, with a layered architecture (UI / business logic / data access).
03 · Result
Outputs & The Constraints of the Time
The result was a comprehensive, self-contained sales/stock program needing no installation and no external database server. Building a stable architecture carrying this many features without a database engine — with the means of a first-year student — was a meaningful step in problem-solving.
Layered Architecture (No Database)
- L1UI (WinForms)
- Sales screen
- Stock management
- Barcode
- L2Business Logic (BL)
- Stock in/out
- Movement history
- Reporting (PDF)
- L3Data Layer (DAL)
- File-based (XML)
- NO database engine
- FTP sync & backup
Need a fast sales/stock program for your small business?
I can build fast, practical sales/stock software that needs no complex setup or database server.
For example:Sales & stock trackingNo-install / lightweightBarcode & reporting
- First step
- Discovery & Feasibility — Free
- Requirements analysis · Technical roadmap · Rough plan and proposal document. Discovery and feasibility are free. The price and timeline of the project itself depend on its scope and come as a firm quote at the end of that work.
I'll build the same for you
Tell the assistant what you need — we will talk through whether I can build something like this, the approach and the free first step right away, and it books a time that suits you.
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