Systems approach to designing (AQA GCSE Design and Technology): Flashcards
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Systems approach definition
Systems approach definition
Breaking complex problems into smaller, manageable steps
Three components of any system
Three components of any system
Input, Process, Output
Input component of a system
Input component of a system
What goes into the system to start the process
Process component of a system
Process component of a system
Where work happens; transforms input into something useful
Output component of a system
Output component of a system
Final result after the process is complete
Purpose of flow charts
Purpose of flow charts
Visual tools that map out how systems work
Terminator symbol in flow chart (oval)
Terminator symbol in flow chart (oval)
Shows start and end points of the process
Flow line symbol in flow chart
Flow line symbol in flow chart
Arrows showing direction the process moves in
Process box in flow chart (rectangle)
Process box in flow chart (rectangle)
Represents an action or operation that happens
Decision diamond in flow chart
Decision diamond in flow chart
Shows where a yes/no decision needs to be made
Open loop system definition
Open loop system definition
One-way flow with no feedback; can't check if working properly
Key limitation of open loop systems
Key limitation of open loop systems
Cannot automatically adjust performance once started
Closed loop system definition
Closed loop system definition
Includes feedback; monitors output & makes auto adjustments
Key feature of closed loop systems
Key feature of closed loop systems
Feedback allowing continuous monitoring & automatic adjustment
Main difference: open vs closed loop
Main difference: open vs closed loop
Closed loop monitors continuously & adjusts; open loop doesn't