Try the distinctions
The handover game
Choose the work needed to deliver an accepted installation. Discover why a finished product alone does not reveal all the work.
Play the game →
Portfolio Wave · Foray 210
Toy scenario
A finished tunnel needs more than permanent lining: excavation, temporary access and support, installed systems, inspections and evidence all play different roles. Smaller installation examples let us test those distinctions without pretending to engineer the whole tunnel.
Can a description of the desired result explain the work needed to achieve it?
Solway is an experimental setting for semantic project planning. Can we explain the work a goal requires by distinguishing physical products, processes, temporary means and evidence?
Try the distinctions
Choose the work needed to deliver an accepted installation. Discover why a finished product alone does not reveal all the work.
Play the game →
Inspect the construction
Change scope, access or methods. Follow shared work and causal support, try two work breakdowns, and compare ontology with executable PDDL.


Early essai · Inspect the vocabulary
Explore Digital Construction terms, a Tokyo stadium model and an HS2 roles snapshot. Ask what else is needed before a project description can explain required work.
Open the early essai →The broader tunnel ontology remains available for exploration. The app collection includes separate investigations of temporal relations, local-to-global construction and ontology auditing.
The tunnel planning experiments are synthetic. The early ontology essai retains separately labelled Tokyo and HS2 project models. Model checks establish results within declared assumptions; they do not establish an engineered tunnel design, empirical verification of those models or practitioner validation.