Envelopment is a concept in mathematics and computer science that refers to the process of surrounding or enclosing a set of points or shapes with a boundary. This boundary can be a simple geometric shape, like a polygon, that captures the outer limits of the points. Envelopes are often used in data analysis to simplify complex datasets by providing a clear outline of their extent. In the context of geographic information systems (GIS), envelopment can help in visualizing spatial data. For example, creating a convex hull around a set of locations allows researchers to understand the area that encompasses all points, aiding in decision-making and resource allocation.