Ptidej Team Blog

From Static Models to Relational Digital Twins: Rethinking District Energy Systems

Mar 21, 2026

Introduction Cities are undergoing a fundamental shift in how energy is produced, distributed, and consumed. Electric vehicles (EVs), rooftop solar, and smart devices are no

Are digital twin frameworks following good coding practices?

Mar 9, 2026

Digital twin is a virtual copy of a physical system or object that helps to understand and analyze the behavior of the system. It uses

Communicating our Research with Stakeholders to Achieve Alignment and Trust

Feb 23, 2026

In smart cities, technical sophistication alone does not guarantee impact. Urban systems are socio-technical ecosystems involving municipalities, infrastructure operators, technology vendors, regulators, and citizens. Stakeholder

Ad-hoc Features and Where to Find Them, Part 2: Current Limitations

Feb 9, 2026

Previously, we discussed how lattices can be used to discover features. Using a relationship called 'reverse-inheritance', it is possible to associate classes with

ECS Survivors Parts VII - X

Feb 4, 2026

Well, a lot of time has passed since the last time I made an update to the ECS Survivors project. Life has a way of