Department of Mathematics, Islamic Azad University, Science and Research Branch, Tehran, Iran.
Traditional DEA models deal with measurements of relative eciency of DMUs regarding multiple - inputs VS. multiple-outputs. One of the drawbacks of these model is the neglect of intermediate products or linkong activities. Af- ter pointing out needs for inclusion of them to DEA models. We propose hybrid model that can deal with intermediate products formally using this model we can evaluate divisional eciency of decision making units (DMU) and we show this model with an example.