Drawing up alternative solutions
Based on the analyses, the development and planning of alternative solutions may start. This includes simple sketches of the different possible options. The reason for stressing development of alternative options to meet planning requirements is that this functions as a tool to develop optimal solutions. The plans can, with advantage, be as different as possible from each other. This stresses the variability, which is important in improving creativity. At least two or three alternatives should be developed (Fig. 22.5); these can be discussed with the owner of the farm, to involve them in the planning process and to make sure that the developed solution meets their requirements. The water levels are extremely important, and when planning land-based fish farms it is important to have control of the free water levels; therefore it is helpful to prepare diagrams showing this.