a. Create a data flow diagram of the current system.

b. Create a system flowchart of the existing system.

c. Analyze the internal control weaknesses in the system. Model your response cording to the six categories of physical control activities specified in the SAS 78/COSO control model.

d. Prepare a system flowchart of a redesigned computer-based system that resolves the control weaknesses you identified. Explain your solution.

Blades R Us is a growing manufacturing firm that produces high-pressure turbine blades. The company supplies these to airline companies as replacement parts for use in large commercial jet engines. The high-pressure turbine is the segment of the engine that undergoes the most stress and heat. This requires that these parts be replaced frequently, so Blades R Us operates a relatively large firm with constant demand for its products. It operates out of Philadelphia, Pennsylvania, with a workforce of approximately 1,000 employees. Its annual output is based on demand, yet at fill capacity, it has the ability to produce 100,000 blades a year. The company’s largest suppliers are casting houses, which take a rough shape of the final product to very demanding specifications given by Blades. Blades R Us then does the final detail work to bring it to Federal Aviation Administration regulations.