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2. Consider the following scenario for a research and development laboratory for a chemical company. The laboratory has five directors and 30 scientists. Scientists work

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2. Consider the following scenario for a research and development laboratory for a chemical company. The laboratory has five directors and 30 scientists. Scientists work on research projects for which they must first submit proposals which must be approved by a director. Each scientist periodically submits a proposal for new chemical research project Scientists can submit many proposals. Each proposal outlines chemicals that the scientist will work on and also the equipment required for the projects. At least one but possibly many cherricals could relate to a proposal. Similarly, proposals will list at least one equipment item and possibly marry equipment items needed on the proposal. Proposals must be approved by one of the five laboratory directors, approved proposals become official projects within the laboratory. It is recessary to keep track of chemicals and equipment requested on proposals and those chemicals and equipment actually being used on approved projects. Although each proposal must be submitted by one scientist, there could be several scientists actually working on projects (with the proposal scientist acting as the "lead scientist"). Construct an EER diagram for this suppliers and quotations business process

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