This interactive chart compares two series of operational data over time using multiple lines, each with a distinct curve fitting method. The visualization uses `d3.tsv` to load the dataset and `d3.scaleLinear` for axes, with `d3.line` and `d3.curveStep` and `d3.curveNatural` to render the lines, while circles mark each data point. It also includes a categorical x-axis for operation types via `d3.scaleBand`. The chart is rendered as an SVG, sourced from the example.tsv file.