===HotSpot===
A HotSpot is a single data object that sits on a layer and typically has a visual representation, such as the value of a property it represents. There are different types of HotSpots:
==HotSpots==InputSpot====An InputSpot is a link All HotSpots have in common that they know* on which layer they sit* their offset relative to a property from a {{UBIK}} Object. It displays the value Top/Left corner of the property layer* their width and reacts to user interaction, e.g. with popping up the property editor when tapped on it. Any existing {{UBIK}} property can be represented as an InputSpot.their height* their shape (angular or round/elliptical)
When it comes to their representations and capabilities, there are different types that support certain use-cases and/or types of backing {{UBIK}} objects or properties:
===InputSpot=MediaSpot==An InputSpot is a link to a property from a {{UBIK}} Object. It displays the value of the property and reacts to user interaction, e.g. with popping up the property editor when tapped on it. Any existing {{UBIK}} property can be represented as an InputSpot. ===MediaSpot===
A MediaSpot is a specialization of an InputSpot that works with properties that can hold media (Audio/Video) data.
====SignatureSpot====
A SignatureSpot is a specialization of an InputSpot that works with properties of type [[MetaProperty#Signature|Signature]]. It allows for graphically signing of objects.
===AnnotationScanSpot===A scan spot is a HotSpot that scans the area it covers using OCR. So when the user moves it around a document or resizes it, it will write the recognized OCR text to its value. ==Annotations==
An Annotation is a collection of Ink strokes that sits on a layer and typically represents redlining or additional information to a document, like a diagram or a photo.