Fibonacci sequence

  • Fn = Fn-1 + Fn-2 .
  • Each number is the sum of the two preceding ones, starting from 0 and 1.
  • Is ubiquitous: the tree branches, cauliflower and the curves of the human brain, etc. It’s a phenomena surrounding us everywhere.

Weber’s law

  • The difference we can identify between objects is given by a percentage.
  • For example, if 60% difference can be distinguished in an effort between two estimates, we can distinguish that same percentage difference between other estimates and that is corresponding with the Fibonacci Sequence.
  • Fibonacci values work well because they increase by about the same portion each time.

Golden ratio

  • Golden mean or golden section.
  • Two quantities are in the golden ratio if their ratio is the same as the ratio of their sum to the larger of the two quantities.
  • Any two successive Fibonacci Numbers, have ratio very close to the Golden Ratio “φ” which is approximately 1,618034…

Fibonacci sequence / Golden ratio

Resources Jeff Sutherland: Scrum - the art of doing twice the work in half the time

Similar posters

AIDA Model
AIDA Model The AIDA model is a model, where a persona moves through a series of steps to make a purchase decision, used in marketing, sales, planning...
STEEPLED STEEPLED - Social, Technological, Economical, Environmental, Political, Legal, Ethical and additional compared to STEEPLE is Demographic.
BLUF - Bottom Line Up Front
BLUF - Bottom Line Up Front BLUF is a framework for declaring the purpose of the message and the action required. It should provide the most important information.
Transactional Analysis
Transactional Analysis Transactional Analysis is a psychoanalytic theory and method of therapy. A personality is made up of three ego states: Parent, Adult, Child.
Conflict styles
Conflict styles There are different strategies for managing conflicts. Categorizing conflict styles enable learning and appropriate usage of these styles
WRAP Decision-Making
WRAP Decision-Making The WRAP model for decision-making helps us to be aware of and avoid decision-making biases like Outcome, Cognitive & Confirmation Bias.
MVP Types
MVP Types Minimum Viable Product (MVP) is a simple product with only a minimal set of features to enable testing with real users. That can be achieved using various types of MVPs.
Lean Startup
Lean Startup The Lean Startup is an approach for creating and sustaining a successful startup. Short business-hypothesis-driven development cycles.
SCARF SCARF Model represents five areas influencing human behavior. The human brain wants to minimize danger or maximize reward which activate respective responses. It explains and helps to deal with human reactions, motivations, and interactions. Description Reward state activators Threat state activators Status Relative importance to others, personal worth Positive and mutual feedback, public acknowledgment Critique,...
Westrum Organizational Culture
Westrum Organizational Culture Westrum Organizational Culture The organizational culture predicts the information flow in an organization. Good information answers the questions that need to be answered in a timely manner and the receiver can effectively use it. Good information flow is critical to be safe and effective in high-tempo and high-consequence environments. Culture Pathological Bureaucratic Generative Description Fear...