The assignment discusses various information processing tools, network diagrams, and project evaluation methods used by managers to make business decisions. The first tool is the Management Information System (MIS), which provides daily data and insights to support middle-level management decision-making. The Decisions Support System (DSS) is used by top-level managers to generate strategic and tactical business decisions. Transaction Processing Systems (TPS) are used to control costs and make decisions on cost reduction strategies. A Network Diagram, also known as a Gantt chart, is a visual tool that helps project managers determine the sequence of activities and execute projects efficiently. Finally, two project evaluation methods, Net Present Value (NPV) and Internal Rate of Return (IRR), are discussed to help evaluate the viability of a specific project.