IE Operations Analysis 1: ● System Analysis – Environment Analysis – Personnel Analysis – Facilities & Equipment Analysis – Process Analysis ● Traditional Industrial Engineering Process Analysis
IE The Work Systems Engineering Process Management Planning Scheduling Work Assignment Monitoring Assessment Needs, Problems, Opportunities Design Specifications Requirements Performance Data, Observations Analysis System Analysis Environment Analysis Personnel Analysis Facilities & Equipment Analysis Process Analysis & Modeling Ergonomic Analysis Failure Modes & Effects Analysis Requirements Engineering Design Workstation Design Equipment Design Procedure Design Job Aid Design using Design Principles Design Guidelines Implementation as(Computer) Model Mockup Prototype Operational System Operation Role Playing Simulation Full-scale Operation Observation Data Collection Evaluation Checklists Heuristic Evaluation Usability Testing Statistical Analysis Work System
IE Basic Concepts of System Analysis ● System ● Analysis ● Model ● Modeling
IE Example For System Analysis: Pre-Reflow Inspection Station (PRIS) ● Modern SMT process at a electronics manufacturer. ● Each line consists of – 1 solder dispenser – 1+ pick & place machine – 1 reflow oven Pick & Place Machine 3 Displa y Circuit Board Keyboard Inspector Cart Reflow Oven Conveyo r Document/Tool Tray Magnifier
IE PRIS Photo
IE Overall SMT Process Solder dispense Pick & place
IE A Typical PCB
IE bView Display
IE Inspection Process ● Prepare and review documents ● Program reflow oven ● Inspect board – Check board match – Check component placement – Check component population – Check component rotation/direction ● Insert manual components
IE PRIS Preliminary System Analysis PRIS System PRIS Equipment PRIS Perso nnel PRIS Processe s PRIS Inspect or Automatic Assembly Equipment Conveyor Reflow Oven Computer Inspection Tools Adjustment & Assembly Tools Furniture Prepare & Review Document s Program Reflow Oven Inspect Board Insert Manual Componen ts Solder Dispenser Pick & Place Machine 1 Pick & Place Machine 2 Pick & Place Machine 3 PRIS Environment DisplayCPU Keyboard & Trackball Reflow Oven Displays Reflow Oven Controls Reflow Oven Chamber Cart Document/ Tool Tray (handout )
IE Traditional Industrial Engineering Process Analysis ● Flow Process Charts ● Flow Diagrams ● Assembly Charts ● Activity Charts ● Multi-Activity (Gang) Charts ● Left-Hand Right-Hand Charts ● Process Maps ● IDEF0
IE Process Chart Symbols Operation Move Inspect Storage Delay Operation + Inspection
IE Flow Process Chart (Single-Object Process Chart) Source: Rago (1963)
IE Flow Process Chart (Detail) Source: Rago (1963)
IE Flow Process Chart Source: Groover, M., Work Systems. Upper Saddle River, NJ: Pearson Prentice Hall.
IE Flow Process Chart (Detail)
IE Flow Process Chart Source: Gaither (1986)
IE Flow Process Chart (Detail)
IE Flow Diagram Source: Groover (2007)
IE In-Class Exercise: ( Flow) Process Chart, Flow Diagram (handout )
IE Source: Groover (2007) Assembly Process Chart (Operation Chart)
IE Assembly Process Chart Source: Gaither (1986)
IE Assembly Process Chart (Details) Source: Gaither (1986)
IE Source: Groover (2007) Activity Chart (one worker)
IE Multi-Activity Chart (Gang Chart) Source: Gaither (1986)
IE Multi-Activity Chart (Detail)
IE Source: Groover (2007) Left-Hand Right-Hand Chart
IE Source: Groover (2007) Multi-Activity Chart (Worker- multimachine Activity Chart)
IE Process Maps (Flow Charts) Symbols
IE Source: Groover (2007) Process Map
IE Source: Overman (2007) Process Map