The de Bruijn core is exact, but real assembly needs more evidence.

highlighted = computed this step

The graph is exact but deliberately small

The model recomputes the k-mer graph for ATGGAT with k=3. It does not estimate coverage or correct sequencing errors.

rendered graph=exact small input\text{rendered graph}=\text{exact small input}
The exact graph is not the full assemblerThe diagram shows only the deterministic k-mer graph.de Bruijn graphATGTGGGGAGATATTGGGGA

Do not read the toy graph as a full assembler

Honesty note: real assemblers use coverage, read quality, paired ends, and error correction. This book isolates the exact graph core so the mathematics is visible.

exact graph corefull assembler\text{exact graph core} \ne \text{full assembler}
What is in scopeThe table states the small model boundary.IncludedLeft outexact k-mer graphcoverageEulerian pathread qualityno duplicate edgessequencing errors