Ask the city what it needs.
And raise the value of the city you live in.

T-ranno CITY is a service platform for the people who run cities and the people who live in them. Ask in plain language about energy, heat, welfare, mobility, commerce, or any other urban issue, and agents built on an ontology knowledge graph compose the right service and answer with evidence. The goal is simple: raise the value of the city, and make life in it better.

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Service catalog · living ledger

Executable city services that keep growing.
One request assembles them into the one service you need.

Every service begins with a question about the city: who benefits, what evidence exists, what action follows, and how the outcome is measured. As new questions appear, new services join the ledger. When someone makes a request, the packaging agent searches the knowledge graph, selects the relevant services, and assembles them into a single executable package. No coding required.

T-RANNO CITY · SERVICE COMPOSER

Service ledger · by lensidle

KVI DESIGN · values-drivenwaiting for services

Key value
Beneficiary
Metric · formula
Target
Direction
Data required
Evaluation cycle

KVI

T-ranno CITY · request

SERVICE PACKAGE · —idle

targetsKVI

SensorAgentsActuatorFeedback

Inside T-ranno CITY

Map, knowledge graph, and agents on one screen.

People read the map. Agents read the graph. Both speak from one integrated urban service ontology.

The city, layer by layer

Yeongdeungpo-gu, Seoullens · performanceshade 14:00sun alt 48°

The map is where every answer lands. Switch between 2D and 3D, pick a district, and stack the layers you need: building registry and 3D massing, electricity, gas, and heat use by year, outdoor temperature and urban heat island, street trees and canopy shade, plus analysis overlays such as shade at 14:00, energy-intensity rankings, and green-remodeling priority. Click any building to open its card with registry details, energy history, and diagnosis status, or ask the assistant and watch the map recolor to show the result. Sites under monitoring are colored by performance achievement and sized by expected savings. And because every service targets a value indicator (KVI), the map can show value rising over time: watch a district's indicators move as services run, and see where the city is getting better.

Every answer traces back to the graph

T-ranno CITY runs on a service ontology. One schema defines what a service is, who it serves, which data, models, and tools it draws on, what it acts on, and which value it targets. Every service, every request, and every result is written into that graph as it happens. The platform never answers from a loose pile of files. It answers from a single, connected picture of the city, one that grows with every question asked. Open the viewer to see the schema and the live instances side by side.

Service loop

A service is an actuator that moves a plant as vast as a city.

A generated service operates, its KVI is measured and evaluated, and if the target is missed a new version is created and the loop runs again. Below replays the ontology case study exactly as instantiated: Building A, energy KVI, target at or below 120 kWh/m²·a.