GIS Dictionary

1 [geography] The highest point of a mountain or hill. 2 [modeling] In modeling, a point on a surface around which all slopes are negative.

[Euclidean geometry] A measurement of the rate of change of elevation over a given horizontal distance, in which the rise is divided by the run and then multiplied by one … Read more

[computing] A measure of the speed at which a computer system works. Factors affecting performance include availability, throughput, and response time.

[astronomy] In an orbit path, the point at which the object in orbit is closest to the center of the body being orbited.

[data management] A dataset permanently stored on disk.

[intellectual property rights] A license that has a time-out date listed as permanent, indicating that the license for a particular product does not expire.

[computing] In computing, the process of saving or storing data; retaining the current state of an object in a memory storage medium such as a database or file on disk.

[database structures] A geodatabase that stores data in Microsoft Access. A personal geodatabase can be read simultaneously by several users, but only one user at a time can edit the … Read more

[3D GIS] A projection mode in 3D applications that allows viewing from a perspective that can be controlled by navigating the scene or globe from a specified location.