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30 Cards in this Set

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  • Back
Customer Needs
the uses for which a particular system is intended. the void that the customer has which the product is to fill.
System Requirements
Drawn from the CUSTOMER NEEDS. Outline goals for the product or system to acheive when completed.
Concurrent Engineering Processes
Sum total of all processes that occur within the development of the system. these processes are broken down into, design, manufacturing and operations, support and maintenance, and retirement and disposal
System Lifecycle
The system life cycle is broken down into the acquisition phase and the utilization phase. Each part of the system has a lifecycle and they all combine to form the system lifecycle.
Systems Engineering Lifecycle Process
From the cradle to the grave describes the SE lifecycle process. Gathering customer needs, defining requirements, designing, building, implementing, supporting, and disposing of a product.
Acquisition Phase
Everything leading up to the use/disposal of the product. This includes idea, design, manufacturing and transporting of the product.
Utilization Phase
This phase includes the use and disposal of the product. Support and maintenance also take place during this phase.
Understand what a system is.
A system is a COMPLEX combination of related parts (components) that form a unitary whole. Systems may exhibit very complex behavior with only very simple relationships among components.
Identify the elements of a system
Systems are composed of components, attirbutes, and relationships; a system is a set of interrelated components working together toward some common objective or purpose.
System Components
are the operating parts of a system consisting of input, process, and output. Each system component may assume a variety of values to describe a system state as set by some control action and cone or more restrictions.
System Attributes
___________are the properties or discernible manifestations of the components of a system. These ___________ characterize the system.
System Relationships
are the links between components and attributes.
Properties exhibited by systems.
System complexity and behaviors. System component dependencies. System hierarchical organization.
System boundaries.
System complexities and behavior.
the properties and behavior of each component of the set has an effect on the properties and behavior of the whole set.
System component dependencies.
the properties and component of the set depends on the properties and behavior of of at least on other component in the set.
System hierarchical organization.
Each possible subset of components has the two properties listed previously; the components connot be divided into independent subsets.
System boundaries.
Boundaries occur when the other three system relationships are not exhibited.
System Components
Structural, Operating, Flow
Structural components.
the static parts
Operating components
are the parts that perform the processing.
Flow components.
are the material, energy, or information being altered.
System Dichotomies.
Natural vs. Manmade. Physical vs. Conceptual. Static vs. Dynamic. Closed vs Open.
Natural systems
are those that came into being by natural processes.
Human-made systems
are those in which human beings have intervened through components, attributes, or relationships.
Physical systems.
are those that manifest themselfves in physical form they are composed of real components and may be contrasted with conceptual systems.
Conceptual systems
are where symbols represent the attributes of components. Ideas, plans, concepts, and hypotheses are examples.
Static system
is one having structure without activity
Dynamic system
combine structural components with activity.
Closed system
does not interact significantly with its environment. The environment proveds only a context for the system to exist.
Open system
allows information, energy, and matter to cross its boundaries. Open systems interact with their environment, examples being plants, ecological systems, and business organizations.