A semantic broker is a computer service that automatically provides semantic mapper services. A semantic broker is frequently part of a semantic middleware system that leverage semantic equivalence statements. To qualify as a semantic broker product a system must be able to automatically extract data from a message and use semantic equvalance statements to transform this into another namespace.

Sohail Khan born 20 December 1970) is an Indian director, writer, producer and actor working in the Hindi cinema. He is the younger brother of actors Salman Khan and Arbaaz Khan. He produces films under his banner Sohail Khan Productions.

Khan was born in Mumbai, Maharashtra to screenwriter Salim Khan and his wife Salma (maiden name Sushila Charak). His paternal grandfather came to India from Afghanistan and settled in Madhya Pradesh; whereas his mother is a Marathi Hindu.. His stepmother is Bollywood actress, Helen, who is famous for her dance and item numbers. His older brothers are actors Salman Khan and Arbaaz Khan. His sister, Alvira Khan, is married to Bollywood actor Atul Agnihotri, while his younger sister Arpita Khan collaborated with Sneha Ullal for his movie Lucky: No Time for Love, which he produced with Sohail Khan Production.

Sohail Khan is son to legendary scriptwriter Salim Khan. He is married to Seema Sachdev and has two sons Nirvaan Khan and Yohan. He started his career as a film producer and director making his directorial debut with the 1997 action thriller Auzaar which starred his brother Salman and Sanjay Kapoor. He then directed both of his brothers Salman and Arbaaz in the hit film Pyaar Kiya To Darna Kya (1998) and the less successful Hello Brother (1999) under his earlier banner G.S. Entertainment.