In most of manufacturing companies, material requirement planning, master production schedule and detail scheduling are performed in a hierarchical method. The material requirement plan is made according to the inventory available and the additional requirement of the material due to new demand. There is coordination and sharing of information between the material requirement plan and master production schedule to make master production schedule. Later the master production schedule which gives the priorities of the production orders and order release information, is then used to make a detail schedule in the shops. However, there is strong interdependency between the master production schedule, material requirement planning and detail planning in the shop which cannot give global solution if they are not intelligently integrated and coordinated in planning simultaneously. When new orders arrive, the material requirement plan, master production schedule and the detail scheduling are required to be considered simultaneously to generate new plan for better service and operations and it is highly desired to continuously transfer information flow and material flow in the plans. Therefore, current research focuses on the development of an intelligent integrated MRP, MPS and detail scheduling procedure for global optimal solutions.