Basic Diagramming

The cycle diagram sample was created on the base of the figure illustrating the webpage "2. POLICY & STRATEGY" of "Scottish Police College Primary Inspection 2006: A Report by Her Majesty's Inspectorate of Constabulary" from the Scottish Government website.
"Strategic Planning.
2.1 The planning process for the College currently follows a structured approach, starting in April and extending through the financial year. The planning cycle is illustrated in figure 2. ...
2.2 The College recognises the need to consult with its customers and stakeholders in the process of setting objectives and directing the training programme. The planning cycle to date refers to force visits, environmental scanning, the course planning process which involves consultation with all forces and other common police services, as well as to a survey of external providers.
2.3 The information from consultation feeds into an EFQM framework from which the College has identified four key policies, namely:
(1) developing and delivering quality training;
(2) developing our people through lifelong learning;
(3) continuous improvement of our service; and
(4) embracing the changing environment.
2.4 The objectives set at divisional level are designed to contribute to delivering these policies. HMIC found that whilst the selected objectives were presented in line with the structure, not all could be considered to meet SMART (Specific, Measurable, Achievable, Relevant and Timed) criteria. This failure indicates that while the process appears suitably structured to deliver a robust result, some of those involved could perhaps have a better understanding of the process." [scotland.gov.uk/ Publications/ 2007/ 02/ 15134652/ 8]
The cycle diagram example "Strategic planning" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Target and Circular Diagrams solution from the Marketing area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ marketing-target-and-circular-diagrams

This arrow loop cycle diagram sample was created on the base of the figure illustrating the webpage "Exploratory Advanced Research Program Hand-Off Workshops" from the US Department of Transportation - Federal Highway Administration (FHWA) website. "The FHWA’s research and technology innovation life cycle illustrates that research and technology development are not insular activities, but integrated processes that together constitute a system.
Following general workshop discussion, a number of common issues emerged among the groups. These centered around the research life cycle, communicating the value of exploratory advanced research, and continued project funding. It was felt that there is a general need to better describe the research and deployment cycle specific to highway transportation and possibly to highway research fields, such as materials or system planning. Research life cycle diagrams show a very linear, chronological process but it is not necessarily that way in reality." [fhwa.dot.gov/ advancedresearch/ pubs/ 11034/ ]
The arrow loop diagram example "Innovation life cycle" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Target and Circular Diagrams solution from the Marketing area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ marketing-target-and-circular-diagrams

This circular arrows diagram sample shows the systems development life cycle (SDLC) stages.
"The systems development life cycle (SDLC), also referred to as the application development life-cycle, is a term used in systems engineering, information systems and software engineering to describe a process for planning, creating, testing, and deploying an information system. The systems development life-cycle concept applies to a range of hardware and software configurations, as a system can be composed of hardware only, software only, or a combination of both." [Systems development life-cycle. Wikipedia]
The arrow circle diagram example "Systems development life cycle" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Circular Arrows Diagrams solution from the area "What is a Diagram" of ConceptDraw Solution Park.

The vector stencils library "Citric acid cycle (TCA cycle)" contains 26 symbols of metabolites for drawing metabolic pathway maps and biochemical shematic diagrams of the citric acid cycle (TCA cycle, tricarboxylic acid cycle, Krebs cycle) and diagrams of metabolism processes.
"The citric acid cycle - also known as the tricarboxylic acid cycle (TCA cycle), or the Krebs cycle, - is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate derived from carbohydrates, fats and proteins into carbon dioxide and chemical energy in the form of adenosine triphosphate (ATP). In addition, the cycle provides precursors of certain amino acids as well as the reducing agent NADH that is used in numerous other biochemical reactions. Its central importance to many biochemical pathways suggests that it was one of the earliest established components of cellular metabolism and may have originated abiogenically.
The name of this metabolic pathway is derived from citric acid (a type of tricarboxylic acid) that is consumed and then regenerated by this sequence of reactions to complete the cycle. In addition, the cycle consumes acetate (in the form of acetyl-CoA) and water, reduces NAD+ to NADH, and produces carbon dioxide as a waste byproduct. The NADH generated by the TCA cycle is fed into the oxidative phosphorylation (electron transport) pathway. The net result of these two closely linked pathways is the oxidation of nutrients to produce usable chemical energy in the form of ATP." [Citric acid cycle. Wikipedia]
The shapes example "Design elements - TCA cycle" is included in the Biology solution from the Science and Education area of ConceptDraw Solution Park.