Attribute
An attribute is information about a geographic feature in a layer. This information is stored in a table and linked to the feature by a unique identifier.
Features
The collective term for individual locations shown on map layers, which in turn can be displayed on the map. For example, a 'feature' could be a building, an area, a street, a road, a postcode, etc.
GIS
Abbreviation for 'Geographic Information System'. This is a collection of hardware, software and geographic data that people interact with to integrate, analyse, and display spatial data; identify relationships, patterns and trends; and find solutions to problems. The system is designed to capture, store, update, manipulate, analyse, and display data, which is geographically referenced to the Earth’s surface.
Layer
A set of plotted points (features), which are superimposed onto the map frame. This system can be likened to placing a sheet of tracing paper over the map to indicate additional information. Layers can be added, activated and removed using the 'check box'.
Map Frame
The actual map to which layers can be added. A variety of map backgrounds can be seen depending on the map scale and chosen date.
Panning
The term used for moving around the map in any given direction. See our Map Tools help page for further information.
Polygon
A polygon is a closed two-dimensional object with at least three sides, representing a feature or area. It is used in GIS to describe spatial elements with a discrete area, such as buildings, ward boundaries, and land use.
Query
A query is a request that selects features or records from a database table. It is often written as an SQL statement or logical expression.
Scale
The map scale shows the ratio of the distance measured on the map compared to the actual measurement on the ground. In the UK most map scales are metric and are shown, for example, as 1:50,000 which represents a scale of 1cm equal to 50,000 cm. Please see our Map Tools help page for further information on adjusting the map scale.
System Requirments/Technical Issues
In order to use the GIS system your PC will need to be set up in a certain way and meet specific system requirements.
Tick Box (Re: adding a map layer)
A small box, which you click on, to add or remove a map layer. A 'cross' or 'tick' in a box signifies the layer is loaded and an empty box means a layer is not loaded.
Tools
The area below the map frame where tool 'buttons' are located. Clicking on different tools enables different mouse functionality.

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