Cycle Time Analyzer

Overview

The Cycle Time Analyzer skill provides comprehensive capabilities for analyzing and reducing cycle times. It supports time and motion studies, takt time comparison, line balancing, and value stream cycle efficiency calculations.

Capabilities

• Time and motion study
• Cycle time distribution analysis
• Takt time comparison
• Line balancing analysis
• Bottleneck visualization
• Queue time identification
• Value stream cycle efficiency
• Improvement simulation

Used By Processes

• LEAN-001: Value Stream Mapping
• LEAN-005: Standard Work Documentation
• TOC-001: Constraint Identification and Exploitation

Tools and Libraries

• Time study software
• Process mining tools
• Simulation software
• Video analysis tools

Usage

skill: cycle-time-analyzer
inputs:
  process: "Assembly Line A"
  takt_time: 60  # seconds
  workstations:
    - name: "Station 1"
      cycle_times: [55, 58, 52, 60, 57]
    - name: "Station 2"
      cycle_times: [62, 65, 63, 61, 64]
    - name: "Station 3"
      cycle_times: [48, 50, 47, 52, 49]
  value_stream_data:
    total_lead_time: 10  # days
    value_added_time: 45  # minutes
outputs:
  - cycle_time_summary
  - bottleneck_analysis
  - line_balance_chart
  - improvement_recommendations
  - cycle_efficiency

Cycle Time Components

Component	Definition	Example
Cycle Time	Total time to complete one unit	60 seconds
Process Time	Time spent processing	45 seconds
Queue Time	Time waiting in queue	2 hours
Move Time	Time spent moving	5 minutes
Setup Time	Time to changeover	30 minutes

Time Study Process

Step 1: Preparation

• Select process to study
• Break down work elements
• Prepare observation form
• Train observer

Step 2: Observation

• Multiple cycle observations
• Document each element
• Note abnormalities
• Capture variability

Step 3: Analysis

• Calculate averages
• Identify variation sources
• Compare to takt time
• Identify improvement opportunities

Line Balance Efficiency

Line Balance Efficiency = Sum of Cycle Times / (Number of Stations x Longest Cycle Time)

Example:
Station 1: 57 sec
Station 2: 63 sec
Station 3: 49 sec

Efficiency = (57 + 63 + 49) / (3 x 63) = 169 / 189 = 89.4%

Value Stream Cycle Efficiency

Cycle Efficiency = Value-Added Time / Total Lead Time

Example:
Value-Added Time: 45 minutes
Total Lead Time: 10 days = 14,400 minutes

Cycle Efficiency = 45 / 14,400 = 0.31%

Bottleneck Identification

Signs of a bottleneck:

• Longest cycle time
• WIP accumulation before station
• Downstream stations starved
• Overtime required

Improvement Strategies

Strategy	Application
Eliminate	Remove non-value-added work
Combine	Merge small tasks
Rearrange	Optimize sequence
Simplify	Reduce complexity
Parallelize	Run tasks simultaneously
Automate	Use technology

Integration Points

• Manufacturing Execution Systems
• Time tracking systems
• Simulation software
• ERP systems