A software engineer is designing a transit routing system for a metropolitan subway network. To simplify the routing algorithm, they decide to represent the network as a schematic map containing only stations and lines, entirely ignoring the real geographical coordinates, track curves, and street-level topography.
State the name of the computational thinking concept being demonstrated by this simplification.
208 exam-style questions on AQA GCSE Computer Science Representing algorithms. Each one has a worked solution and a mark scheme showing where the marks go.