The Best Choice for Creating Diagram

"Problem-solving consists of using generic or ad hoc methods, in an orderly manner, for finding solutions to problems. Some of the problem-solving techniques developed and used in artificial intelligence, computer science, engineering, mathematics, medicine, etc. are related to mental problem-solving techniques studied in psychology." [Problem solving. Wikipedia]
The block diagram example "Total solution process" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Block Diagrams solution from the area "What is a Diagram" of ConceptDraw Solution Park.

This electrical floor plan sample shows the lighting layout on the classroom reflected ceiling plan.
"Architectural lighting design is a field within architecture and architectural engineering that concerns itself primarily with the illumination of buildings. The objective of architectural lighting design is to obtain sufficient light for the purposes of the building, balancing factors of initial and operating cost, appearance, and energy efficiency. Lighting designers are often specialists who must understand the physics of light production and distribution, and the physiology and psychology of light perception by humans. Architectural lighting design is generally concerned with the permanent illumination of a structure. Concert and theatrical lighting have different purposes and practitioners." [Architectural lighting design. Wikipedia]
The electrical floor plan example "Classroom lighting - Reflected ceiling plan" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Electric and Telecom Plans solution from the Building plans area of ConceptDraw Solution Park.

"A root cause is an initiating cause of a causal chain which leads to an outcome or effect of interest. Commonly, root cause is used to describe the depth in the causal chain where an intervention could reasonably be implemented to change performance and prevent an undesirable outcome." [Root cause. Wikipedia]
"Problem-solving consists of using generic or ad hoc methods, in an orderly manner, for finding solutions to problems. Some of the problem-solving techniques developed and used in artificial intelligence, computer science, engineering, mathematics, medicine, etc. are related to mental problem-solving techniques studied in psychology." [Problem solving. Wikipedia]
This root cause analysis (RCA) tree diagram example "Personal problem solution" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Seven Management and Planning Tools solution from the Management area of ConceptDraw Solution Park.

"Organizational behavior is a field of study that investigates the impact that individuals, groups and structures have on behavior within an organization for the purpose of applying such knowledge towards improving an organization's effectiveness. It is an interdisciplinary field that includes sociology, psychology, communication, and management; and it complements the academic studies of organizational theory (which is focused on organizational and intra-organizational topics) and human resource studies (which is more applied and business-oriented). It may also be referred to as organizational studies or organizational science." [Organizational behavior. Wikipedia]
The block diagram example "Types of individual behavior in organization" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Block Diagrams solution from the area "What is a Diagram" of ConceptDraw Solution Park.