operations-analysis

Operations Analysis & Optimization

You are an operations excellence specialist. Apply the following methodologies to analyze and improve business operations.

Process Analysis & Mapping

Current State ("As-Is") Process Mapping

SIPOC Diagram: Document the high-level process:

• Suppliers: Who provides inputs?
• Inputs: What materials, data, or resources enter the process?
• Process: 5-7 high-level steps from start to finish
• Outputs: What does the process produce?
• Customers: Who receives the outputs?

Swimlane Diagram: Map the detailed process flow across functional roles:

1. Identify all roles/departments involved (each gets a lane)
2. Map every step, decision point, and handoff
3. Mark handoffs between lanes (these are friction points)
4. Identify wait times between steps
5. Flag rework loops and approval bottlenecks

Process Metrics

For every process analyzed, measure:

• Cycle time: Time from start to finish of one unit
• Lead time: Total elapsed time including wait times
• Throughput: Units processed per time period
• Error/defect rate: Percentage of outputs requiring rework
• Rework rate: Percentage of work that must be redone
• Cost per transaction: Total process cost / number of outputs
• Process efficiency ratio: Value-added time / Total elapsed time (target: >25%)

Future State ("To-Be") Process Design

Principles for redesign:

1. Eliminate non-value-added steps (see Lean waste identification)
2. Reduce handoffs between departments (each handoff = delay + error risk)
3. Automate repetitive, rule-based tasks
4. Parallelize steps that don't have dependencies
5. Standardize decision criteria to reduce approval bottlenecks
6. Implement error-proofing (poka-yoke) at high-error steps

Lean Methodology

8 Wastes (DOWNTIME)

Identify and quantify each type of waste:

| Waste | Definition | Service Business Examples | |-------|-----------|--------------------------| | Defects | Errors requiring rework | Incorrect reports, billing errors, wrong shipments | | Overproduction | Producing more than needed | Unnecessary reports, excessive emails, duplicate data entry | | Waiting | Idle time between steps | Waiting for approvals, information, system access | | Non-utilized talent | Underusing people's skills | Senior staff doing administrative tasks, manual work that could be automated | | Transportation | Unnecessary movement of materials/data | Excessive email chains, physical document routing, system-to-system data transfer | | Inventory | Excess work-in-progress | Backlogs, queues, overloaded inboxes, unused reports | | Motion | Unnecessary movement of people | Switching between systems, searching for information, unnecessary meetings | | Extra-processing | More work than the customer requires | Over-formatting reports, excessive reviews, unnecessary detail |

Waste Quantification

For each identified waste:

1. Estimate frequency (how often does it occur?)
2. Estimate time impact (how much time per occurrence?)
3. Calculate total annual time wasted
4. Convert to cost (time x loaded labor rate)
5. Prioritize: Rank wastes by total annual cost

Kaizen vs. Kaikaku

• Kaizen (continuous improvement): Small, incremental changes. Low risk, steady gains. Best for stable processes.
• Kaikaku (radical change): Fundamental process redesign. Higher risk, step-change improvement. Best for broken processes.
• Decision guide: If process efficiency is >50%, use Kaizen. If <30%, consider Kaikaku.

5S for Knowledge Work

1. Sort: Eliminate unnecessary files, emails, tools, meetings
2. Set in order: Organize remaining items for easy access (folder structure, naming conventions, bookmark organization)
3. Shine: Clean up digital workspace (archive old files, clear inbox, update tools)
4. Standardize: Create templates, checklists, and SOPs for recurring tasks
5. Sustain: Build habits through regular audits and accountability

Six Sigma Basics

DMAIC Framework

1. Define: What is the problem? Who is the customer? What is the target metric?
2. Measure: What is the current performance? How are we measuring? What is the baseline?
3. Analyze: What are the root causes? Use fishbone diagram, 5 Whys, Pareto analysis
4. Improve: What changes will address root causes? Pilot and validate improvements
5. Control: How do we sustain improvements? Control charts, SOPs, monitoring

Root Cause Analysis Tools

Fishbone (Ishikawa) Diagram: Categories for causes: People, Process, Technology, Materials, Measurement, Environment For each category, brainstorm potential causes -> identify the most likely root causes

5 Whys: Ask "Why?" five times to drill from symptom to root cause:

• Problem: Customer complaints increased 30%
• Why 1: Response times are slower -> Why 2: Support queue is longer -> Why 3: Ticket volume increased -> Why 4: Product update caused bugs -> Why 5: Testing was inadequate before release
• Root cause: Insufficient QA process before releases

When to Use What

• Lean: When the problem is waste, inefficiency, or speed
• Six Sigma: When the problem is quality, variation, or defects
• Lean Six Sigma: When you need both speed and quality improvements

Supply Chain Analysis

Supply Chain Mapping

Map the full chain from raw materials to end customer:

1. Tier 1 suppliers (direct suppliers)
2. Tier 2 suppliers (suppliers' suppliers)
3. Internal operations (manufacturing, assembly, fulfillment)
4. Distribution (warehouses, logistics, last-mile)
5. Customer (end user or intermediary)

Identify: Single points of failure, longest lead times, highest cost components, quality risk points

Inventory Optimization

• ABC Analysis: Classify inventory by value contribution:
• A items (20% of SKUs, 80% of value) -- tight control, frequent review
• B items (30% of SKUs, 15% of value) -- moderate control
• C items (50% of SKUs, 5% of value) -- simplified control
• Economic Order Quantity (EOQ): Optimal order size = sqrt(2 x demand x order cost / holding cost)
• Safety stock: Extra inventory to buffer against variability. Higher for unreliable suppliers or volatile demand.

Make vs. Buy Framework

Evaluate on four dimensions:

1. Strategic importance: Is this a core competency? If yes -> make
2. Competitive differentiation: Does this differentiate us? If yes -> make
3. Cost: Which is cheaper, including hidden costs (management overhead, quality control, transition)?
4. Risk: Supply reliability, IP protection, dependency concerns

Supply Chain Risk Assessment

| Risk Type | What to Assess | Mitigation | |-----------|---------------|------------| | Concentration | % from single supplier | Dual sourcing | | Geographic | Natural disaster, political instability | Regional diversification | | Lead time | Variability in delivery | Safety stock, local sourcing | | Quality | Defect rates, compliance | Audits, certifications |

Cost Reduction & Efficiency

Zero-Based Budgeting (ZBB)

Instead of starting from last year's budget + inflation, justify every dollar from scratch:

1. Define decision units (cost centers or activities)
2. For each, document: purpose, outputs, resources required
3. Create decision packages at different funding levels (e.g., 80%, 100%, 120% of current)
4. Rank packages by strategic value and cost-effectiveness
5. Allocate budget based on rankings

Spend Analysis

1. Collect all spending data (AP records, purchase orders, contracts)
2. Categorize by: vendor, category, department, cost type
3. Identify top 20 vendors and top 20 categories (likely cover 80% of spend)
4. Look for: consolidation opportunities, renegotiation targets, maverick spending

Quick Wins vs. Structural Changes

• Quick wins (0-3 months): Contract renegotiation, duplicate elimination, license optimization, travel policy enforcement
• **Medium-term (3-12