Is actually solving problem using indirect and creative approach. In the other words unorthodox or apparently illogical methods.
There were many different between lateral thinking and vertical thinking. Below is the different between both thinking methods.
Lateral Thinking(provocative):
-richness in matters
-doest not select pathway, it means generate more pathway and more alternative
-generate different approach
Vertical thinking(analytical):
-rightness in what matters
-select pathway, by excluding others pathway
-select the best approach