From a question to a running system

Five steps used to turn a question into a working system. At each step, you can open the relevant part of a working application.

  1. Frame the question

    Define the question to be answered, the boundary of the work and what needs to change.

  2. Prepare the data

    Prepare data from separate sources for use while preserving each source, period, unit and limit.

  3. Build the working solution

    Turn the analysis into a solution people can open and use directly.

  4. Test the result

    Test forecasts, rules and calculations against actual outcomes and the results of simple baseline methods.

  5. Deploy and operate

    Deploy the solution, keep it current, monitor it and make failures visible.

Only work that runs today and can be opened through a link appears here.

Source, period and date are shown together. Missing data is stated plainly.

Under the hood

The technologies, the data sources, the test counts and the publication dates are read at build from each repository and from each running application.

İskandil

Stack
Python 3.12 · React 19 + Vite 6
Sources
852 sector codes · 1,240 cells with dataSGK Yıllık İstatistikler, Tablo 1.16 · Asgari Ücret Tespit Komisyonu kararları, Resmî Gazete · TÜİK, Girişimin ana faaliyet türü ve çalışan sayısına göre dış ticaret · TÜİK Yurt İçi Üretici Fiyat Endeksi (TCMB EVDS) · TCMB, Kredi Faiz Oranları (EVDS)
Schedule
13:15–13:25 daily
Last published
21.09.2026 00:26
Tests
573 test functionsin 54 files

Rasat

Stack
Python 3.11 · DuckDB · FastAPI · scikit-learn · React 19 + Vite 7 + Recharts
Sources
36 tables in the lakeEPİAŞ Şeffaflık Platformu · EPDK lisans sicili · TÜREB · Ember (CC BY 4.0) · Open-Meteo (CC BY 4.0) · ECMWF Open Data (CC BY 4.0)
Schedule
15:00 daily
Last published
21.09.2026 01:31
Tests
1,175 test functionsin 90 files

Nirengi

Stack
Python · DuckDB · React 18 + Vite 5
Sources
57 verified of 231 cataloguedTÜİK · ÇŞB · İBB · TCMB · AFAD · +22 more — the publishers of the 54 the coverage page lists
Schedule
07:30 daily
Last published
21.09.2026 00:14last published by the work itself: 21.09.2026 00:10
Tests
3,067 test functionsin 126 files

Seyir

Stack
Python 3.12 · FastAPI
Sources
Not read
Schedule
07:15 and 09:15 daily
Last published
20.09.2026 09:24last published by the work itself: 20.09.2026 09:24
Tests
970 test functionsin 103 files

Kerteriz

Stack
Python 3.12 · DuckDB · scikit-learn · H3 · GeoPandas · React 19 + Vite 5 + MapLibre
Sources
TÜİK ADNKS · OpenStreetMap (ODbL) · Overture · WorldPop (CC BY 4.0)
Schedule
Nothing scheduled
Last published
Not deployed
Tests
58 test functionsin 7 files