Point of Difference Written Business communication Oral Business communication Feedback Immediate feedbacks is not required In case of oral communication we need immediate feedback. Evidence Written message are kept as record, thus they can be used as evidence. As no record is maintained for oral communication it cannot be used as evidence. Easy acceptance In compression to oral communication has lack of directness. On the other hand oral message are easily acceptable. Barriers Written communication need to overcome more barriers than oral communication It faces less barriers than written communication. Audience size The audience size of written communication is large and geographically scattered. Audience size is comparatively small. cost It is more costly than oral communication. It is less costly than written communication. Knowledge level High level of knowledge and literacy is required. Even illiterate people can participate in oral communication.