该软件包包括一个图形化的工具来放置均匀B样条曲线控制点，看到了B样条是如何重绘作为控制点或控制点的权重进行调整，和功能来估算B样条与已知节点向量，给定一组嘈杂的数据点或者与已知的或未知的相关联的参数值。

至于人机交互界面，向用户显示一个数字窗口，在其中选择一个均匀B样条曲线的控制点轴。如点被放置在轴，B-样条指定顺序的逐步拉伸。用户可以终止按ENTER键或ESC键添加控制点，或者可以将最后一个控制点用鼠标右键点击。-The package comprises of a graphical utility to place uniform B-spline control points and see how the B-spline is redrawn as control points or control point weights are adjusted, and functions to estimate B-splines with known knot vector, given a set of noisy data points either with known or unknown associated parameter values.

As regards the interactive interface, the user is shown a figure window with axes in which to choose control points of a uniform B-spline. As points are placed in the axes, the B-spline of specified order is drawn progressively.