Term
|
Definition
| A system is an assemblage or combination of functionally related elements or parts forming a unitary whole. |
|
|
Term
A system is made of three things.
State and define each. |
|
Definition
Components - parts of a system
Attributes - properties of the components and of the system as a whole
Relationships - engineer the attributes of a pair of components so that the pair operates effectively |
|
|
Term
| What is the state of a system? |
|
Definition
| The state is the situation at a point in time of the system with regard to its attributes and relationships. |
|
|
Term
|
Definition
| A connected series of changes in the state over time. |
|
|
Term
|
Definition
| The set of all behaviors (connected series of changes) with their relative sequence and timing. |
|
|
Term
| What are the requirements for a set of components? |
|
Definition
1 - properties and behavior of each component have an effect on the properties and behavior of the set as a whole
2 - the p & b of each component depend on the properties and behavior of at least one other compnent in the set
3 - each possible subset of components meets the two requirements above. They cannot be divided. |
|
|
Term
|
Definition
| The purposeful action performed by a system |
|
|
Term
| What are the three types of components |
|
Definition
Structural - static components
Operating - parts that perform the processing
Flow - material, energy, information being altered |
|
|
Term
| What must be present to provide the alteration within the structural and operative components? |
|
Definition
|
|
Term
| What do attributes determine? |
|
Definition
The component's contribution to the system's function
Characteristic
Quality
Configuration
Power
Constraint
State |
|
|
Term
| What is a first order relationship? |
|
Definition
| Functionally necessary to both components |
|
|
Term
| What is a second order relationship? |
|
Definition
| Relationships that are complementary and add to system performance |
|
|
Term
| When does a redundancy exist in a system? |
|
Definition
| When duplicate components are present for the purpose of assuring continuation of the system function in case of component failure |
|
|
Term
|
Definition
| Everything that remains outside the boundaries of a system. |
|
|
Term
|
Definition
| What enters the system in one form and leaves the system in another form |
|
|
Term
| What are physical systems? |
|
Definition
| Those that manifest themselves in physical form. |
|
|
Term
| What are conceptual systems? |
|
Definition
Symbols represent the attributes of components.
For example: Ideas, plans, concepts, hypotheses.
May be used in the planning of physical systems. |
|
|
Term
| What is a system of systems? |
|
Definition
| Related systems that are normally analyzed individually that can be studied as a group. |
|
|
Term
|
Definition
One whose state does not change because it structural components, but no operating or flow components.
For example: a bridge |
|
|
Term
| What is a dynamic system? |
|
Definition
| Exhibits behaviors because it combines structural components with operatin and/or flow components. |
|
|
Term
|
Definition
| One that does not interact significantly with its environment. The environment provides a context for the system. |
|
|
Term
|
Definition
| It allows input to cross its boundaries and interacts with the environment. They are self regulatory and self adaptive by their steady state-ness |
|
|
Term
| What are the characteristics of a steady state |
|
Definition
| A dynamic interaction of system elements adjusts to changes in the enviroment. |
|
|
Term
|
Definition
| It may encompass much of natural science. Self-regulation, whether mechanical, electromechanical, electrical, or biological. |
|
|
Term
| What is the backbone of cybernetic theory? |
|
Definition
Feedback.
All goal seeking behavior is controlled by the feedback of corrective information about deviation from a desired state. |
|
|
Term
| With what is general systems theory concerned? |
|
Definition
| Developing a systematic framework for describing general relationships in the natural and human-made world. |
|
|
Term
|
Definition
| The science of systems and their formation. |
|
|
