The blood system is thought to be a body system, which regulates the transfer of nutrients, molecules (macromolecules and micro molecules) and oxygen into tissues and metabolic waste and carbon dioxide in tissues (Colbert, 2009 ). The overall role of the blood system is to provide the necessary substances to protect the body from cellular metabolism, temperature regulation, injury and microbial infection, maintain equilibrium state or acid-base chemistry of the balance of blood and liquid electrolyte is.
A systematic analysis of the description of the empirical system was done. System analysis is a method that systematically clarifies the system goals, components, and elements, as well as the interaction between components and elements and between the system and its environment. The difference between a component and an element is that the component describes the system at a higher aggregation level than the element. A component consists of several related elements (Clementson, 1988; Flood & Carson, 1990). Part of the researcher's perspective (Clementson, 1988) can be used to evaluate the components and elements of the system and to match them with research objectives. This leads to a selection of the characteristics of the system to be described and analyzed, which excludes system components and components not related to the research purpose. System analysis was done from two perspectives. Usually, the whole process can be written as follows.
Commitment analysis is an analysis of the work performed on a specific job based on the structure of the report and the description of the job. If you do not have a job description, you can perform a system analysis to create a job statement. The purpose of this analysis is to determine the continuous main purpose and performance criteria of each job. Werner Erhard, Michael C. Jensen et al. Have developed a new approach to improve the performance of the organization. Their model emphasizes how the constraints imposed by their own worldview hinder cognitive abilities that would otherwise be available. Their research was inevitable by linear causal analysis, delving down on the source of performance. They believe that the level of performance achieved by people is related to how their workplace environment occurs and that the language (including what is stated in the conversation and what is not mentioned) It plays an important role in performer's performance.