Layer order and arranging layers

Layer stack is an ordered set of layers. Layer's position in the stack reflects to the topic resolution in Wandora. Layers order in the stack has an effect to the topics and associations in Wandora. General rule is that a topic inherits all it's properties from the top layer consisting the topic property. Top property overlays all other properties in lower layers.

In previous chapter an analogy was drawn between the layer concept of Wandora and graphic design applications. This analogy may lighten the effect of layer order also. In graphic design applications the graphic element in top layer overlays the elements in lower layers. Similarly the base name in Wandora's top layer overlays base name's of merged topics in lower layers. Similarly the occurrence text of top layer overlays the occurrence of merged topics in lower layers.