Creative Problem Solving Essay Example | Topics and Well Written Essays - 1000 words

Creative Problem Solving - Essay Example One of the most significant problems that the world experiences in the present scenario is the global warming and the emissions of the Carbon di-oxide in the form of smoke from the burning of gasoline while driving a car. The problem of global warming is destroying the environment and the climate largely, which in turn harms living beings on earth to a considerable extent. In this context, innovative inventions like the launching of the electricity car are required, which will subdue the emissions at least to some extent. The invention of the Tesla Model S is indeed a creative and noticeable product that has its own contribution to the suppression of the emission level of the harmful gases thereby bringing down the risks of global warming largely. Moreover, the highly fluctuating price of the gasoline is also not required as the car can work on the electricity stored in the batteries. The invention of luxury saloon car is enough to attract the attention of the car lovers and additionally the term electric car is likely to add a wave into their minds. Tesla Model S was created keeping in mind the preferences of the people of all generation. The comfort and luxury along with the inclusion of the advanced technological attributes into the car has made it a sensation among the car lover around the world. Moreover, it has a well-known aspect on plying without utilizing a drop of gasoline but only on electricity, which also plays great role in establishing itself in the global market of the present scenario.

The Therac-25 and Its Accident Investigation Case Study

The Therac-25 and Its Accident Investigation - Case Study Example The Therac-25 falls into a class of machines referred to as Medical linear accelerators (linacs). They use the principal of accelerating electrons so as to create high energy beams that can be used to destroy any cancerous cells without affecting the other surrounding non- cancerous tissues. For shallow tissues, accelerated electrons were enough to treat them but for the deeper ones, the electrons beams have to be converted into X-ray photons. Defects that lead to the accidents The machine consisted of hardware and software that helped the machine run. The software also monitored the functionality status of the machine and turning on the beam. It was also responsible for turning off the beam and detecting any malfunctions. The software was responsible for running most of the machine functions in conjunction with the hardware. This therefore means that any small bug in the software will lead to malfunctioning of the machine. The software for running the Therac-25 was not extensively t ested before it was deployed for use. This was due failure to follow proper system development and implementation practices. Also the programmer didn’t provide enough documentation about the machine and software errors that could guide operators on when there is malfunction and what to do. The operators therefore were in the dark most of the time despite the machine displaying various error messages as they thought was normal. The hardware that was used to measure the dosage always provided a wrong dosage reading when it as overloaded. Instead of providing a high reading instead it displayed a low reading when it was actually so high. Another defect was how the machine was made to be operated. The machine was made that the operator and the patient were to be in separate rooms to minimize effect of radiation to the operator. Therefore in case there was any overdose and the patient complaining, the operator could not hear it. Also the operator could not ascertain whether the pa tient was in the right position every time. This was risky and costly assumptions that lead to the occurrence of the accidents. Therefore, software errors and design defects were major causes of the accidents. Collective responsibility The accidents happened over a 19-month long period and most certainly someone had to be responsible for allowing such life threatening accidents to occur for that period without doing anything. Many parties were responsible including the manufacturer, the operators and technicians and the federal government. As all the accidents happened from the first to the sixth one, the manufacturer seemed not to care. Only lame excuses were given. For example after the second accident, the manufacturer claimed it was an electrical failure even when an independent electrical firm had ruled out any possibility of the cause of the accident being an electrical fault. It was only after the sixth accident that there seemed to be any action form the manufacturer. The qu estion one would ask is why did the manufacture remain quiet for that long and let the machines to be in use when they were actually causing accidents. The federal government also had their share of the blame by allowing the AECL Company to continue with its operations despite its machines causing those fatal accidents. It was clear that the manufacturer was not following proper system development and implementation methods but yet was allowed to operate. Operators and techn