Understanding Complexity: Thought and behavior

Foundational Systems Engineering (SE) Patterns for a SE Pattern Language

“…Figure 4 Three System Minimum Pattern -briefly documents the pattern that reflects these systems. (Warfield 2002). This pattern addresses the idea that the human mind is incapable of recalling into its short-term memory more than about seven items.…”

“…(Mar and Morais 1997) are careful to describe -as a part of establishing the boundaries of the system -that "This definition is critical to formulating the problem to be solved, and to develop a shared vision of a common problem." (Warfield 2002) (or Program) system that is used to produce the product, an operating environment system that includes normal, abnormal operating as well as start up and shut down environments, a program environment system that includes the regulators, investors, and competition and the "Rest of the World" System. These systems were simplified over time to three basic systems, and were expressed by (Simpson and Simpson 2003) as the product system, the process/ organizational system, and the environment system.…”

“…This pattern is based on the dynamics of interpreting and learning implied by the law of triadic compatibility applied to the designer in the solution system. (Warfield 2002) postulated that if the designer is not operating at the 'Limit of reasoning capability,' (i.e., is either underburdened or overburdened), that the "design Target ... will embody bad outcomes that are beyond the control of the designer. "…”

“…Pattern is based on (Warfield 2002) Brief 11, The Law of Limits. This law is based on the proposition that any activity will have a corresponding set of limits on that activity that will determine its feasible extent.…”

“…The formality of a pattern language depends on the relationship types -because the patterns remain the same. In discussing language as related to systems, Warfield (1990) noted that "it must be possible to make associations and assignments between intuitively-generated relationships expressed through natural language and formal statements of these expressed in terms of the object language." Figure 12, adapted from Warfield (1990), is a notional depiction that moves from an informal type of connectivity to a formal one.…”