The need for analyzing huge amount of data in organizations as well as effects of analyses results on its decision making and strategic planning in growing. Multi-dimensional databases issue this problem. Multi-dimensional conceptual model strongly affects multi-dimensional database development. Many of the existing multi-dimensional models are based on traditional relational model while some others aim to organize data using a multi-dimensional perspective. These models do not support heterogeneous dimensions and this is a major deficit, causing limitations in their applications.