Summary
The residential elevators market is projected to reach USD 58.6 billion by 2031 from USD 51.8 billion in 2026, at a CAGR of 2.5%. The residential elevators market is growing due to an aging population and a rising focus on energy-efficient buildings. Additionally, growing investments in smart cities and infrastructure are accelerating further growth. “The machine-room-less traction elevator segment is projected to be the second-largest segment during the forecast period.” Machine-room-less (MRL) elevators are the second biggest technology segment in the residential elevators market, as they offer high performance yet make the best use of the space available. With MRL elevators, it is different than the traditional elevator system, because the drive machinery is placed inside the elevator shaft, freeing up the design of the home from the need to have a separate machine room. This makes them an ideal choice for contemporary single-family homes, townhouses, and upscale residential projects where a key factor is the efficient use of space. In addition to offering smooth and quiet performance, MRL systems provide improved ride comfort and reduce energy consumption with regenerative drives and permanent magnet motors. The small size makes them easy to install in new buildings and retrofits, increasing their versatility in residential buildings. Furthermore, the MRL elevators are becoming more popular among homeowners due to their seamless integration with modern architectural styles, along with their smart control features, remote monitoring, and predictive maintenance capabilities. They have also continued to benefit from ongoing technological developments to enhance their reliability, efficiency, and ease of use. The residential elevators sector is one of the biggest technology markets in the global elevator industry, as MRL elevators are becoming increasingly popular with homeowners and builders due to their sustainable, space-saving, and technologically advanced construction. “Maintenance & repair segment projected to be the second-largest segment during the forecast period.” The maintenance and repair services segment is the second-largest segment, by service, in the residential elevators market, as it is necessary to ensure the proper functioning, safety, and reliability of the installed elevator systems for a long time. Residential elevators are long-life assets that need to be inspected, maintained, and serviced periodically, updated with software and lubricated, and optimized for smooth and efficient operation. The number of residential elevators installed around the world continues to grow, and there has been a corresponding demand for periodic maintenance. With an increasing number of homeowners choosing annual maintenance contracts, it has become more important than ever to make sure the equipment lasts as long as possible, performs consistently, and follows the manufacturer's recommendations. Moreover, the progress in the Internet of Things (IoT) technology for monitoring and predictive maintenance has revolutionized service provision by enabling service providers to proactively maintain their applications before problems arise and to remotely track system health. These features not only boost efficiency but also add to the convenience for customers. Elevator manufacturers are also investing in their after-market service networks by providing comprehensive maintenance packages, digital diagnostics, and quick response service, all of which are new revenue streams. The rising awareness of consumers about preventive maintenance and the rising use of technologically advanced residential elevators are still increasing the demand for maintenance and repair services. This makes this segment one of the largest contributors to the overall residential elevator services market. “In terms of value, the North American region is projected to be the second-largest segment during the forecast period.” North America holds the second-largest market for residential elevators due to high demand for home accessibility solutions, upscale housing projects, and new residential infrastructure. The area has a large elderly population, who are growing more reliant on residential elevators to facilitate their ability to live independently and to move between floors in large homes. Also, the presence of big single-family residences, luxury residences, and custom-built homes generates favorable conditions for installing elevators. Market growth is also strengthened by robust renovation and home improvement activity, with homeowners more likely to install elevators in their homes when they're remodeling to improve accessibility, convenience, and property value. Moreover, the region has high consumer purchasing power and a high take-up of advanced home technologies, which helps the implementation of smart residential elevators that have IoT connectivity, touchless control, remote diagnostics, and energy-efficient systems. Additionally, the elevator market is bolstered by the involvement of major elevator manufacturers, established service networks, and ongoing innovation in compact-sized and machine-room-less elevator technology. In addition, the focus on universal design principles and the rising demand for high-end home features drive market expansion in the United States and Canada. All of these have contributed to North America becoming the second-largest market for residential elevators, which are receiving consistent investments in accessibility, smart homes, and the enhancement of residential buildings. By Company Type: Tier 1: 25%, Tier 2: 42%, and Tier 3: 33% By Designation: C-level Executives: 20%, Directors: 30%, and Other Designations: 50% By Region: North America: 20%, Europe: 10%, Asia Pacific: 40%, South America: 10%, and Middle East & Africa 20% Notes: Other designations include sales, marketing, and product managers. Tier 1: >USD 1 Billion; Tier 2: USD 500 million–1 Billion; and Tier 3:
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Table of Contents
1 INTRODUCTION 29
1.1 STUDY OBJECTIVES 29
1.2 MARKET DEFINITION 29
1.3 STUDY SCOPE 30
1.3.1 MARKETS COVERED & REGIONAL SCOPE 30
1.3.2 INCLUSIONS & EXCLUSIONS 31
1.3.3 YEARS CONSIDERED 31
1.4 CURRENCY CONSIDERED 31
1.5 UNIT CONSIDERED 31
1.6 STAKEHOLDERS 32
1.7 RESEARCH LIMITATIONS 32
2 EXECUTIVE SUMMARY 33
2.1 KEY INSIGHTS AND MARKET HIGHLIGHTS 33
2.2 KEY MARKET PARTICIPANTS: SHARE INSIGHTS AND STRATEGIC DEVELOPMENTS 35
2.3 DISRUPTIVE TRENDS SHAPING THE MARKET 36
2.4 HIGH-GROWTH SEGMENTS & EMERGING FRONTIERS 37
2.5 SNAPSHOT: GLOBAL MARKET SIZE, GROWTH RATE, AND FORECAST 38
3 PREMIUM INSIGHTS 40
3.1 ATTRACTIVE OPPORTUNITIES FOR PLAYERS IN RESIDENTIAL ELEVATORS MARKET 40
3.2 RESIDENTIAL ELEVATORS MARKET, BY ELEVATOR TECHNOLOGY AND SERVICE 41
3.3 RESIDENTIAL ELEVATORS MARKET, BY COUNTRY 42
4 MARKET OVERVIEW 43
4.1 INTRODUCTION 43
4.2 MARKET DYNAMICS 44
4.2.1 DRIVERS 44
4.2.1.1 Aging population is driving home mobility demand 44
4.2.1.2 Increasing focus on energy efficiency in buildings 46
4.2.1.3 Increasing investment in smart cities and infrastructure development 47
4.2.2 RESTRAINTS 48
4.2.2.1 High maintenance cost 48
4.2.2.2 Uncertainty & risk regarding global economy 48
4.2.3 OPPORTUNITIES 49
4.2.3.1 Residential Elevator-as-a-Service (EaaS) 49
4.2.3.2 Standardized plug-and-play retrofit platforms 49
4.2.4 CHALLENGES 50
4.2.4.1 Compliance with Multiple Regional Safety Standards 50
4.2.4.2 Diverse residential building structures 51
4.3 UNMET NEEDS AND WHITE SPACES 51
4.3.1 UNMET NEEDS IN RESIDENTIAL ELEVATORS MARKET 52
4.3.1.1 Affordable mid-market residential elevators without performance trade-offs 52
4.3.1.2 Ultra-compact residential elevators for homes without floor penetration 52
4.3.2 WHITE SPACE OPPORTUNITIES 53
4.3.2.1 Self-powered residential elevators compatible with rooftop solar 53
4.3.2.2 Residential elevator digital twin throughout lifecycle 53
4.3.2.3 Residential elevator health monitoring platform 53
4.4 INTERCONNECTED MARKETS AND CROSS-SECTOR OPPORTUNITIES 54
4.4.1 INTERCONNECTED MARKETS 54
4.4.2 CROSS-SECTOR OPPORTUNITIES 54
4.4.3 STRATEGIC MOVES BY TIER 1/2/3 PLAYERS 55
4.4.4 KEY MOVES AND STRATEGIC FOCUS 55
5 INDUSTRY TRENDS 57
5.1 PORTER’S FIVE FORCES’ ANALYSIS 57
5.1.1 THREAT OF NEW ENTRANTS 58
5.1.2 THREAT OF SUBSTITUTES 58
5.1.3 BARGAINING POWER OF SUPPLIERS 59
5.1.4 BARGAINING POWER OF BUYERS 59
5.1.5 INTENSITY OF COMPETITIVE RIVALRY 59
5.2 MACROECONOMIC ANALYSIS 60
5.2.1 INTRODUCTION 60
5.2.2 GDP TRENDS AND FORECASTS 60
5.3 VALUE CHAIN ANALYSIS 61
5.4 ECOSYSTEM ANALYSIS 64
5.5 PRICING ANALYSIS 66
5.5.1 AVERAGE SELLING PRICE RANGE OF ELEVATORS, BY TYPE 66
5.5.2 RESIDENTIAL ELEVATORS (AVERAGE PRICE RANGE) 66
5.6 TRADE ANALYSIS 67
5.6.1 IMPORT DATA RELATED TO HS CODE 842810, BY COUNTRY,
2021–2025 (USD THOUSAND) 67
5.6.2 EXPORT DATA RELATED TO HS CODE 842810, BY COUNTRY,
2021–2025 (USD THOUSAND) 69
5.7 KEY CONFERENCES AND EVENTS, 2026-2027 70
5.8 TRENDS/DISRUPTIONS IMPACTING CUSTOMER BUSINESS 71
5.9 INVESTMENT AND FUNDING SCENARIO 72
5.10 CASE STUDY ANALYSIS 73
5.10.1 VISTA SERENA – SAVARIA VUELIFT 73
5.10.2 THE GLEN ECLIPSE – SAVARIA ECLIPSE 74
5.10.3 MRS. OJEDA RESIDENCE, FLORIDA – STILTZ DUO HOME ELEVATOR 75
5.11 IMPACT OF 2025 US TARIFFS ON RESIDENTIAL ELEVATORS MARKET 75
5.11.1 INTRODUCTION 75
5.11.2 KEY TARIFF RATES 75
5.11.3 PRICE IMPACT ANALYSIS 76
5.11.4 KEY IMPACT ON VARIOUS REGIONS 77
5.11.4.1 US 77
5.11.4.2 Europe 77
5.11.4.3 Asia Pacific 77
5.11.5 INDUSTRY IMPACT 78
6 TECHNOLOGICAL ADVANCEMENTS 79
6.1 KEY TECHNOLOGIES 79
6.1.1 INTUITIVE ELEVATOR TECHNOLOGY 79
6.1.2 CABLE-FREE SMART ELEVATORS 79
6.2 COMPLEMENTARY TECHNOLOGIES 80
6.2.1 TOUCHLESS INTERFACE 80
6.2.2 INTERNET OF THINGS (IOT) AND 5G TECHNOLOGY 81
6.3 ADJACENT TECHNOLOGIES 81
6.3.1 ARTIFICIAL INTELLIGENCE (AI) FOR TRAFFIC MANAGEMENT 81
6.3.2 AUGMENTED REALITY (AR) FOR MAINTENANCE 82
6.4 TECHNOLOGY/PRODUCT ROADMAP 82
6.4.1 SHORT-TERM (2025–2027) | SMART CONNECTIVITY & COMPACT
MOBILITY PHASE 82
6.4.2 MID-TERM (2027–2030) | INTELLIGENT AUTOMATION & DIGITAL ECOSYSTEM 83
6.4.3 LONG-TERM (2030–2035+): AUTONOMOUS & SUSTAINABLE
HOME MOBILITY PHASE 84
6.5 PATENT ANALYSIS 84
6.6 FUTURE APPLICATIONS 87
6.6.1 SHAPE-ADAPTIVE ELEVATOR CABINS 87
6.6.2 ENERGY-SHARING ELEVATOR NETWORKS 88
6.6.3 ELECTROCHROMIC SMART GLASS ELEVATOR CABINS 88
6.7 IMPACT OF AI/GENERATIVE AI ON RESIDENTIAL ELEVATORS MARKET 89
6.7.1 TOP USE CASES AND MARKET POTENTIAL 90
6.7.2 BEST PRACTICES IN RESIDENTIAL ELEVATORS 90
6.7.3 CASE STUDIES OF AI IMPLEMENTATION IN RESIDENTIAL ELEVATORS MARKET 91
6.7.4 INTERCONNECTED ADJACENT ECOSYSTEM AND IMPACT
ON MARKET PLAYERS 91
6.7.5 CLIENTS’ READINESS TO ADOPT GENERATIVE AI IN RESIDENTIAL
ELEVATORS MARKET 92
7 SUSTAINABILITY AND REGULATORY LANDSCAPE 93
7.1 REGIONAL REGULATIONS AND COMPLIANCE 93
7.1.1 REGULATORY BODIES, GOVERNMENT AGENCIES, AND OTHER ORGANIZATIONS 93
7.1.2 INDUSTRY STANDARDS 99
7.2 SUSTAINABILITY INITIATIVES 101
7.2.1 CARBON IMPACT AND ECO-APPLICATIONS OF RESIDENTIAL ELEVATORS 101
7.2.1.1 Carbon Impact Reduction 101
7.2.1.2 Eco-applications 102
7.3 SUSTAINABILITY IMPACT AND REGULATORY POLICY INITIATIVES 102
7.4 CERTIFICATIONS, LABELING, AND ECO-STANDARDS 104
8 CUSTOMER LANDSCAPE & BUYER BEHAVIOR 106
8.1 DECISION-MAKING PROCESS 106
8.2 BUYER STAKEHOLDERS AND BUYING EVALUATION CRITERIA 108
8.2.1 KEY STAKEHOLDERS IN BUYING PROCESS 108
8.2.2 BUYING CRITERIA 108
8.3 ADOPTION BARRIERS & INTERNAL CHALLENGES 109
8.4 UNMET NEEDS IN RESIDENTIAL ELEVATORS MARKET 111
8.5 MARKET PROFITABILITY 111
8.5.1 REVENUE POTENTIAL 112
8.5.2 COST DYNAMICS 112
8.5.3 MARGIN OPPORTUNITIES, BY SERVICE 113
9 RESIDENTIAL ELEVATORS MARKET BY ELEVATOR TECHNOLOGY 114
9.1 INTRODUCTION 115
9.2 TRACTION ELEVATORS 116
9.2.1 LIGHTWEIGHT PROPERTY TO DRIVE MARKET 116
9.3 MACHINE-ROOM-LESS TRACTION ELEVATORS 117
9.3.1 COST-EFFECTIVENESS AND SUPERIOR PERFORMANCE OF TECHNOLOGY TO DRIVE MARKET 117
9.4 HYDRAULIC ELEVATORS 117
9.4.1 USE IN LOW-RISE BUILDINGS TO DRIVE MARKET 117
10 RESIDENTIAL ELEVATORS MARKET, BY SERVICE 118
10.1 INTRODUCTION 119
10.2 NEW INSTALLATION 120
10.2.1 RISING CONSTRUCTION ACTIVITIES TO DRIVE MARKET 120
10.3 MAINTENANCE & REPAIR 121
10.3.1 GROWING CONCERNS REGARDING AGING ELEVATORS TO DRIVE MARKET 121
10.4 MODERNIZATION 121
10.4.1 NEED TO REPLACE AGING AND OBSOLETE SYSTEMS TO DRIVE MARKET 121
11 RESIDENTIAL ELEVATORS MARKET, BY REGION 122
11.1 INTRODUCTION 123
11.2 ASIA PACIFIC 126
11.2.1 CHINA 130
11.2.1.1 Large-scale urban renewal driving residential elevator demand 130
11.2.2 JAPAN 133
11.2.2.1 Aging population and residential modernization driving demand 133
11.2.3 INDIA 136
11.2.3.1 Rapid urbanization and smart housing development driving demand 136
11.2.4 SOUTH KOREA 139
11.2.4.1 Aging housing stock and energy-efficient renovation driving residential elevator demand 139
11.2.5 REST OF ASIA PACIFIC 142
11.3 NORTH AMERICA 145
11.3.1 US 149
11.3.1.1 Increase in redevelopment projects to drive market growth 149
11.3.2 CANADA 151
11.3.2.1 Growth in residential investments to drive market 151
11.3.3 MEXICO 154
11.3.3.1 Rising housing investments to support market growth 154
11.4 SOUTH AMERICA 157
11.4.1 BRAZIL 160
11.4.1.1 Rapid urbanization and vertical housing development 160
11.4.2 ARGENTINA 163
11.4.2.1 Increase in energy-efficient building renovations to drive market 163
11.4.3 REST OF SOUTH AMERICA 166
11.5 EUROPE 169
11.5.1 GERMANY 173
11.5.1.1 Government housing initiatives and residential building modernization to drive demand 173
11.5.2 FRANCE 176
11.5.2.1 Residential housing recovery and accessibility regulations driving demand 176
11.5.3 UK 179
11.5.3.1 Affordable housing investments and smart urban development driving demand 179
11.5.4 ITALY 181
11.5.4.1 Smart housing investments and residential upgrades driving market growth 181
11.5.5 SPAIN 184
11.5.5.1 Residential renovation initiatives and housing development supporting adoption 184
11.5.6 REST OF EUROPE 186
11.6 MIDDLE EAST & AFRICA 189
11.6.1 GCC COUNTRIES 193
11.6.1.1 Saudi Arabia 195
11.6.1.1.1 Growing housing development and aging population are driving residential elevator demand in Saudi Arabia 195
11.6.1.2 UAE 198
11.6.1.2.1 Expanding housing investments and aging demographics are increasing residential elevator demand in the UAE 198
11.6.1.3 Rest of GCC Countries 201
11.6.2 REST OF MIDDLE EAST & AFRICA 204
12 COMPETITIVE LANDSCAPE 208
12.1 OVERVIEW 208
12.2 KEY PLAYERS’ STRATEGIES/RIGHT TO WIN, 2021–2026 208
12.3 REVENUE ANALYSIS, 2021–2025 210
12.4 MARKET SHARE ANALYSIS, 2025 210
12.5 COMPANY VALUATION AND FINANCIAL METRICS 214
12.6 BRAND/PRODUCT COMPARISON 216
12.7 COMPANY EVALUATION MATRIX: KEY PLAYERS, 2025 217
12.7.1 STARS 217
12.7.2 EMERGING LEADERS 217
12.7.3 PERVASIVE PLAYERS 217
12.7.4 PARTICIPANTS 217
12.7.5 COMPANY FOOTPRINT: KEY PLAYERS, 2025 219
12.7.5.1 Company footprint 219
12.7.5.2 Region footprint 220
12.7.5.3 Elevator technology footprint 220
12.7.5.4 Service footprint 221
12.8 COMPANY EVALUATION MATRIX: STARTUPS/SMES, 2025 221
12.8.1 PROGRESSIVE COMPANIES 221
12.8.2 RESPONSIVE COMPANIES 221
12.8.3 DYNAMIC COMPANIES 221
12.8.4 STARTING BLOCKS 222
12.8.5 COMPETITIVE BENCHMARKING: STARTUPS/SMES, 2025 223
12.8.5.1 Detailed list of key startups/SMEs 223
12.8.6 COMPETITIVE BENCHMARKING OF KEY STARTUPS/SMES 224
12.9 COMPETITIVE SCENARIO 225
12.9.1 PRODUCT LAUNCHES 225
12.9.2 DEALS 227
12.9.3 EXPANSIONS 232
12.9.4 OTHER DEVELOPMENTS 234
13 COMPANY PROFILES 236
13.1 KEY PLAYERS 236
13.1.1 OTIS WORLDWIDE CORPORATION 236
13.1.1.1 Business overview 236
13.1.1.2 Products/Solutions/Services offered 237
13.1.1.3 Recent developments 238
13.1.1.3.1 Product launches 238
13.1.1.3.2 Deals 238
13.1.1.3.3 Expansions 239
13.1.1.3.4 Others 240
13.1.1.4 MnM view 241
13.1.1.4.1 Key strengths 241
13.1.1.4.2 Strategic choices 241
13.1.1.4.3 Weaknesses and competitive threats 242
13.1.2 SCHINDLER 243
13.1.2.1 Business overview 243
13.1.2.2 Products/Solutions/Services offered 245
13.1.2.3 Recent developments 246
13.1.2.3.1 Product launches 246
13.1.2.4 MnM view 246
13.1.2.4.1 Key strengths 246
13.1.2.4.2 Strategic choices 247
13.1.2.4.3 Weaknesses and competitive threats 247
13.1.3 KONE CORPORATION 248
13.1.3.1 Business overview 248
13.1.3.2 Products/Solutions/Services offered 250
13.1.3.3 Recent developments 251
13.1.3.3.1 Deals 251
13.1.3.3.2 Expansions 252
13.1.3.3.3 Others 252
13.1.3.4 MnM view 253
13.1.3.4.1 Key strengths 253
13.1.3.4.2 Strategic choices 253
13.1.3.4.3 Weaknesses and competitive threats 254
13.1.4 HITACHI, LTD. 255
13.1.4.1 Business overview 255
13.1.4.2 Products/Solutions/Services offered 257
13.1.4.3 Recent developments 258
13.1.4.3.1 Product launches 258
13.1.4.3.2 Deals 259
13.1.4.3.3 Expansions 259
13.1.4.3.4 Others 259
13.1.4.4 MnM view 260
13.1.4.4.1 Key strengths 260
13.1.4.4.2 Strategic choices 260
13.1.4.4.3 Weaknesses and competitive threats 260
13.1.5 HYUNDAI ELEVATOR CO., LTD. 261
13.1.5.1 Business overview 261
13.1.5.2 Products/Solutions/Services offered 262
13.1.5.3 Recent developments 263
13.1.5.3.1 Product launches 263
13.1.5.3.2 Deals 263
13.1.5.3.3 Expansions 264
13.1.5.3.4 Others 265
13.1.5.4 MnM view 265
13.1.5.4.1 Key strengths 265
13.1.5.4.2 Strategic choices 265
13.1.5.4.3 Weaknesses and competitive threats 266
13.1.6 FUJITEC CO., LTD. 267
13.1.6.1 Business overview 267
13.1.6.2 Products/Solutions/Services offered 267
13.1.6.3 Recent developments 268
13.1.6.3.1 Product launches 268
13.1.6.3.2 Expansions 268
13.1.6.3.3 Others 269
13.1.6.4 MnM view 270
13.1.7 TOSHIBA ELEVATORS AND BUILDING SYSTEMS CORPORATION 271
13.1.7.1 Business overview 271
13.1.7.2 Products/Solutions/Services offered 271
13.1.7.3 Recent developments 272
13.1.7.3.1 Deals 272
13.1.7.3.2 Others 272
13.1.7.4 MnM view 272
13.1.8 MITSUBISHI ELECTRIC CORPORATION 273
13.1.8.1 Business overview 273
13.1.8.2 Products/Solutions/Services offered 274
13.1.8.3 Recent developments 275
13.1.8.3.1 Product launches 275
13.1.8.3.2 Deals 276
13.1.8.4 MnM view 276
13.1.9 TK ELEVATOR 277
13.1.9.1 Business overview 277
13.1.9.2 Products/Solutions/Services offered 277
13.1.9.3 Recent developments 278
13.1.9.3.1 Product launches 278
13.1.9.3.2 Deals 279
13.1.9.3.3 Expansions 280
13.1.9.4 MnM view 281
13.1.10 SJEC CORPORATION 282
13.1.10.1 Business overview 282
13.1.10.2 Products/Solutions/Services offered 282
13.1.10.3 MnM view 283
13.2 OTHER PLAYERS 284
13.2.1 KLEEMANN 284
13.2.2 SIGMA ELEVATORS 285
13.2.3 WEMAINTAIN 286
13.2.4 ESCON ELEVATORS 287
13.2.5 SHENYANG YUANDA INTELLECTUAL INDUSTRY GROUP CO., LTD. 287
13.2.6 ORONA 288
13.2.7 EITA ELEVATOR 289
13.2.8 GLARIE ELEVATOR 290
13.2.9 AARON INDUSTRIES LTD. 290
13.2.10 LEO ELEVATORS 291
13.2.11 TRIO ELEVATORS CO (INDIA) PRIVATE LIMITED 292
13.2.12 STANNAH GROUP 293
13.2.13 CIBES LIFT 294
13.2.14 WALTON GROUP 295
13.2.15 EXPEDITE AUTOMATION LLP 296
13.2.16 LIFT AI VENTURES INC. 297
14 RESEARCH METHODOLOGY 298
14.1 RESEARCH DATA 298
14.2 SECONDARY DA T A 299
14.2.1 KEY DATA FROM SECONDARY SOURCES 299
14.3 PRIMARY DATA 299
14.3.1 KEY DATA FROM PRIMARY SOURCES 300
14.4 MARKET SIZE ESTIMATION 301
14.5 DATA TRIANGULATION 304
14.6 RESEARCH ASSUMPTIONS 305
14.7 RISK ASSESSMENT 305
14.8 GROWTH RATE ASSUMPTIONS 306
15 APPENDIX 307
15.1 DISCUSSION GUIDE 307
15.2 KNOWLEDGESTORE: MARKETSANDMARKETS’ SUBSCRIPTION PORTAL 310
15.3 CUSTOMIZATION OPTIONS 312
15.4 RELATED REPORTS 312
15.5 AUTHOR DETAILS 313