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.
- Nirengi(Türkçe)/nirengi/s/rehber/?lang=en
- Rasat/rasat/?lang=en#/rehber
2
Prepare the data
Prepare data from separate sources for use while preserving each source, period, unit and limit.
- Rasat/rasat/?lang=en#/sahiplik
- İskandil/iskandil/?lang=en#/rehber
3
Build the working solution
Turn the analysis into a solution people can open and use directly.
- İskandil/iskandil/?lang=en#/kendi
- Nirengi(Türkçe)/nirengi/il/34-istanbul/
4
Test the result
Test forecasts, rules and calculations against actual outcomes and the results of simple baseline methods.
- Rasat/rasat/?lang=en#/tahmin
5
Deploy and operate
Deploy the solution, keep it current, monitor it and make failures visible.
- Under the hood
- Nirengi(Türkçe)/nirengi/s/durum/?lang=en

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 data sources and the publication dates are read at build from each repository and from each running application.

İskandil

Sources: 852 sector codes · 1,241 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
Page last updated: 03.11.2026 14:26

Rasat

Sources: 39 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: 11:00 daily · 15:00 daily
Page last updated: 06.11.2026 15:02

Nirengi

Sources: 53 verified of 227 cataloguedVerified source: a source whose licence, address and values have been checked by hand.TÜİK · ÇŞB · TCMB · AFAD · BDDK · +20 more — the publishers of the 50 of these 53 that the coverage page lists; the other 3 are not named there
Schedule: 07:30 daily
Page last updated: 06.11.2026 14:29data last published by the work itself: 06.11.2026 14:28

Seyir

Sources: Public price data
Schedule: 07:15 and 09:15 daily
Page last updated: 06.11.2026 09:24data last published by the work itself: 06.11.2026 09:23

İrtifa

Sources: Türk Hava Yolları / Pegasus · BTS · DHMİ · EUROCONTROL · Eurostat · FAA · +2 more
Schedule: 09:10–09:25 daily
Page last updated: 26.10.2026 14:58

Kerteriz

Sources: TÜİK ADNKS · OpenStreetMap (ODbL) · Overture · WorldPop (CC BY 4.0)
Schedule: Nothing scheduled
Page last updated: Not deployed