How can systematic observations lead to a conclusion?

Systematic observation. an objective, well-ordered method for close examination of some phenomenon or aspect of behavior so as to obtain reliable data unbiased by observer interpretation.

Systematic observation allows the understanding of each phase of a task, allowing the researcher to understand every thing that happens, generating a comprehensive and complete conclusion.

Explanation:

Systematic Observation is a method used to understand how a particular activity or task works. The researcher observes the stages of a process, the tools used, the difficulties that appear, the conversations and the results of the work. Systematic Observation is guided by a definite goal, one thing one wants to know about that activity. The observation is made over and over until there is sufficient evidence to assert such a thing.

Systematic Observation can be used to do Behavioral Mapping, Task Analysis, or Activity Analysis.