Final answer:
The job most suitable for the direct observation method of job analysis is a call center operator, where tasks are visually observable. A software engineer would belong to the quaternary sector and require analytical intelligence for data analysis.
Step-by-step explanation:
The most suitable job for the direct observation method of job analysis data collection would be a call center operator. This job involves tasks that can be visually observed, such as the way the operator handles calls, uses the computer system, and interacts with customers. On the other hand, jobs such as a software engineer, graphic designer, and financial analyst involve more cognitive processes that are not as easily observed through direct methods.
A software engineer would likely be employed in the quaternary sector of an economy, which is focused on knowledge-based activities such as information technology. In an information society, a person of power could be a software engineer, as they are central to the development of information technology. Lastly, when examining data to look for trends, using analytical intelligence is most applicable. This involves logical reasoning and the ability to analyze and evaluate information.