Global Residential Intercom Systems Market Research Report, Competitive, Technology and Forecast Analysis 2025-2032

According to DIResearch＇s in-depth investigation and research, the global Residential Intercom Systems market size will reach Million USD in 2025 and is projected to reach Million USD by 2032, with a CAGR of % (2025-2032). Notably, the China Residential Intercom Systems market has changed rapidly in the past few years. By 2025, China＇s market size is expected to be Million USD, representing approximately % of the global market share.

Research Summary

Residential intercom systems are communication systems installed in homes to facilitate audio or video communication between different rooms or areas within the household. These systems are designed to enhance convenience, security, and interconnectivity by allowing residents to communicate with each other without physical proximity. Residential intercoms can be audio-only, where users communicate through voice transmission, or audio-video, incorporating both sound and visual components. They are commonly used to communicate between various floors, front and back doors, or specific rooms, providing an efficient way to convey messages or control access. Modern residential intercom systems often integrate with smart home technologies, allowing users to manage and monitor their intercoms remotely through mobile devices. These systems contribute to enhanced communication, accessibility, and security within a residential setting.

The major global  manufacturers of Residential Intercom Systems include Aiphone, Panasonic, Legrand, Samsung, DNAKE, Commax, ABB, Guangdong Anjubao, TCS, Fermax, Aurine Technology, Hager, Honeywell, Siedle, Schneider Electric, Urmet, Axis (ZN), Comelit Group, Vimar, TKH Group NV, Shenzhen Competition, Quanzhou Jiale, Zhuhai Taichuan, Leelen Technology, Akuvox, Gira, WRT Security System, ShenZhen SoBen, Doorking, Fujiang QSR, Zicom, Kocom, Nortek Security & Control, etc. The global players competition landscape in this report is divided into three tiers. The first tier comprises global leading enterprises that command a substantial market share, hold a dominant industry position, possess strong competitiveness and influence, and generate significant revenue. The second tier includes companies with a notable market presence and reputation; these firms actively follow industry leaders in product, service, or technological innovation and maintain a moderate revenue scale. The third tier consists of smaller companies with limited market share and lower brand recognition, primarily focused on local markets and generating comparatively lower revenue.

This report studies the market size, price trends and future development prospects of Residential Intercom Systems. Focus on analysing the market share, product portfolio, prices, sales, revenue and gross profit margin of global major manufacturers, as well as the market status and trends of different product types and applications in the global Residential Intercom Systems market. The report data covers historical data from 2020 to 2024, based year in 2025 and forecast data from 2026 to 2032.

The regions and countries in the report include US, Germany, Japan, China, France, UK, South Korea, Canada, Italy, Russia, Mexico, Brazil, India, Vietnam, Thailand, South Africa and other regions, covering the Residential Intercom Systems market conditions and future development trends of key regions and countries, combined with industry-related policies and the latest technological developments, analyze the development characteristics of Residential Intercom Systems industries in various regions and countries, help companies understand the development characteristics of each region, help companies formulate business strategies, and achieve the ultimate goal of the company's global development strategy.    

The data sources of this report mainly include the National Bureau of Statistics, customs databases, industry associations, corporate financial reports, third-party databases, etc. Among them, macroeconomic data mainly comes from the National Bureau of Statistics, International Economic Research Organization; industry statistical data mainly come from industry associations; company data mainly comes from interviews, public information collection, third-party reliable databases, and price data mainly comes from various markets monitoring database.

Global Key Manufacturers of Residential Intercom Systems Include:

Aiphone

Panasonic

Legrand

Samsung

DNAKE

Commax

ABB

Guangdong Anjubao

TCS

Fermax

Aurine Technology

Hager

Honeywell

Siedle

Schneider Electric

Urmet

Axis (ZN)

Comelit Group

Vimar

TKH Group NV

Shenzhen Competition

Quanzhou Jiale

Zhuhai Taichuan

Leelen Technology

Akuvox

Gira

WRT Security System

ShenZhen SoBen

Doorking

Fujiang QSR

Zicom

Kocom

Nortek Security & Control

Residential Intercom Systems Product Segment Include:

Audio Intercom System

Video Intercom System

Residential Intercom Systems Product Application Include:

Residential

Light Commercial

Chapter Scope

Chapter 1: Product Research Range, Product Types and Applications, Market Overview, Market Situation and Trend

Chapter 2: Global Residential Intercom Systems Industry PESTEL Analysis

Chapter 3: Global Residential Intercom Systems Industry Porter's Five Forces Analysis

Chapter 4: Global Residential Intercom Systems Major Regional Market Size (Sales, Revenue, Price) and Forecast Analysis

Chapter 5: Global Residential Intercom Systems Competitive Analysis of Key Manufacturers (Sales, Revenue, Market Share, Price, Regional Distribution and Industry Concentration)

Chapter 6: Global Residential Intercom Systems Sales, Revenue, Price and Forecast by Product Type

Chapter 7: Key Company Profiles (Product Portfolio, Sales, Revenue, Price and Gross Margin)

Chapter 8: Industrial Chain Analysis, Residential Intercom Systems Different Application Market Analysis (Sales and Revenue), Sales Channel Analysis

Chapter 9: Research Findings and Conclusion

Chapter 10: Methodology and Data Sources

Table 1： Residential Intercom Systems Industry Development Status

Table 2： Residential Intercom Systems Industry Development Trends

Table 3： Global Residential Intercom Systems Revenue and Growth Rate (CAGR) by Country: 2024 VS 2025 VS 2032 (US$ Million)

Table 4： Global Residential Intercom Systems Revenue by Country (2020-2025) & (US$ Million)

Table 5： Global Residential Intercom Systems Revenue Market Share by Country (2020-2025)

Table 6： Global Residential Intercom Systems Revenue Forecast by Country (2026-2032) & (US$ Million)

Table 7： Global Residential Intercom Systems Revenue Market Share Forecast by Country (2026-2032)

Table 8： Global Residential Intercom Systems Market Sales Growth Rate (CAGR) by Country: 2024 VS 2025 VS 2032  (K Unit)

Table 9： Global Residential Intercom Systems Market Sales by Country (2020-2025) & (K Unit)

Table 10： Global Residential Intercom Systems Market Sales Market Share by Country (2020-2025)

Table 11： Global Residential Intercom Systems Market Sales Forecast by Country (2026-2032) & (K Unit)

Table 12： Global Residential Intercom Systems Market Sales and Market Share Forecast by Country (2026-2032)

Table 13： Global Residential Intercom Systems Market Sales by Key Manufacturers (2021-2025) & (K Unit)

Table 14： Global Residential Intercom Systems Sales Market Share by Key Manufacturers (2021-2025)

Table 15： Global Residential Intercom Systems Market Revenue by Key Manufacturers (2021-2025) & (US$ Million)

Table 16： Global Residential Intercom Systems Revenue Market Share by Key Manufacturers (2021-2025)

Table 17： Global Average Sales Price by Manufacturers (2021-2025) & (USD/Unit)

Table 18： Global Key Manufacturers Headquarter and Key Area Sales

Table 19： Market Mergers & Acquisitions, Expansion

Table 20： Global Residential Intercom Systems Market Size Analysis by Type: 2024 & 2025 & 2032 (US$ Million)

Table 21： Global Residential Intercom Systems Revenue Analysis by Type (2020-2025) & (US$ Million)

Table 22： Global Residential Intercom Systems Revenue Forecast Analysis by Type (2026-2032) & (US$ Million)

Table 23： Global Residential Intercom Systems Sales Analysis by Type (2020-2025) & (K Unit)

Table 24： Global Residential Intercom Systems Sales Forecast Analysis by Type (2026-2032) & (K Unit)

Table 25： Aiphone Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 26： Aiphone Residential Intercom Systems Product Portfolio

Table 27： Aiphone Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 28： Panasonic Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 29： Panasonic Residential Intercom Systems Product Portfolio

Table 30： Panasonic Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 31： Legrand Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 32： Legrand Residential Intercom Systems Product Portfolio

Table 33： Legrand Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 34： Samsung Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 35： Samsung Residential Intercom Systems Product Portfolio

Table 36： Samsung Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 37： DNAKE Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 38： DNAKE Residential Intercom Systems Product Portfolio

Table 39： DNAKE Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 40： Commax Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 41： Commax Residential Intercom Systems Product Portfolio

Table 42： Commax Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 43： ABB Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 44： ABB Residential Intercom Systems Product Portfolio

Table 45： ABB Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 46： Guangdong Anjubao Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 47： Guangdong Anjubao Residential Intercom Systems Product Portfolio

Table 48： Guangdong Anjubao Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 49： TCS Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 50： TCS Residential Intercom Systems Product Portfolio

Table 51： TCS Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 52： Fermax Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 53： Fermax Residential Intercom Systems Product Portfolio

Table 54： Fermax Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 55： Aurine Technology Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 56： Aurine Technology Residential Intercom Systems Product Portfolio

Table 57： Aurine Technology Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 58： Hager Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 59： Hager Residential Intercom Systems Product Portfolio

Table 60： Hager Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 61： Honeywell Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 62： Honeywell Residential Intercom Systems Product Portfolio

Table 63： Honeywell Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 64： Siedle Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 65： Siedle Residential Intercom Systems Product Portfolio

Table 66： Siedle Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 67： Schneider Electric Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 68： Schneider Electric Residential Intercom Systems Product Portfolio

Table 69： Schneider Electric Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 70： Urmet Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 71： Urmet Residential Intercom Systems Product Portfolio

Table 72： Urmet Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 73： Axis (ZN) Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 74： Axis (ZN) Residential Intercom Systems Product Portfolio

Table 75： Axis (ZN) Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 76： Comelit Group Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 77： Comelit Group Residential Intercom Systems Product Portfolio

Table 78： Comelit Group Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 79： Vimar Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 80： Vimar Residential Intercom Systems Product Portfolio

Table 81： Vimar Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 82： TKH Group NV Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 83： TKH Group NV Residential Intercom Systems Product Portfolio

Table 84： TKH Group NV Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 85： Shenzhen Competition Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 86： Shenzhen Competition Residential Intercom Systems Product Portfolio

Table 87： Shenzhen Competition Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 88： Quanzhou Jiale Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 89： Quanzhou Jiale Residential Intercom Systems Product Portfolio

Table 90： Quanzhou Jiale Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 91： Zhuhai Taichuan Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 92： Zhuhai Taichuan Residential Intercom Systems Product Portfolio

Table 93： Zhuhai Taichuan Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 94： Leelen Technology Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 95： Leelen Technology Residential Intercom Systems Product Portfolio

Table 96： Leelen Technology Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 97： Akuvox Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 98： Akuvox Residential Intercom Systems Product Portfolio

Table 99： Akuvox Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 100： Gira Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 101： Gira Residential Intercom Systems Product Portfolio

Table 102： Gira Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 103： WRT Security System Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 104： WRT Security System Residential Intercom Systems Product Portfolio

Table 105： WRT Security System Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 106： ShenZhen SoBen Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 107： ShenZhen SoBen Residential Intercom Systems Product Portfolio

Table 108： ShenZhen SoBen Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 109： Doorking Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 110： Doorking Residential Intercom Systems Product Portfolio

Table 111： Doorking Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 112： Fujiang QSR Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 113： Fujiang QSR Residential Intercom Systems Product Portfolio

Table 114： Fujiang QSR Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 115： Zicom Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 116： Zicom Residential Intercom Systems Product Portfolio

Table 117： Zicom Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 118： Kocom Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 119： Kocom Residential Intercom Systems Product Portfolio

Table 120： Kocom Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 121： Nortek Security & Control Basic Company Profile (Employees, Areas Service, Competitors and Contact Information)

Table 122： Nortek Security & Control Residential Intercom Systems Product Portfolio

Table 123： Nortek Security & Control Residential Intercom Systems Revenue (US$ Million), Sales (K Unit), Price (USD/Unit), Gross Margin and Market Share (2021-2025)

Table 124： Upstream Key Raw Material Price List

Table 125： Residential Intercom Systems Raw Material Suppliers and Contact Information

Table 126： Global Residential Intercom Systems Revenue Market Size and Growth Rate (CAGR) by Application: 2024 VS 2025 VS 2032 & (US$ Million)

Table 127： Global Residential Intercom Systems Revenue Analysis by Application (2020-2025) & (US$ Million)

Table 128： Global Residential Intercom Systems Revenue Forecast Analysis by Application (2026-2032) & (US$ Million)

Table 129： Global Residential Intercom Systems Sales Analysis by Application (2020-2025) & (K Unit)

Table 130： Global Residential Intercom Systems Sales Forecast Analysis by Application (2026-2032) & (K Unit)

Table 131： Residential Intercom Systems Typical Customer List

Table 132： Residential Intercom Systems Distributors List

Figure 1： Residential Intercom Systems Product Pictures

Figure 2： Audio Intercom System Picture Scope

Figure 3： Video Intercom System Picture Scope

Figure 4： Residential Picture Scope

Figure 5： Light Commercial Picture Scope

Figure 6： Global Residential Intercom Systems Market Size Analysis：2024 VS 2025 VS 2032 (US$ Million)

Figure 7： Global Residential Intercom Systems Market Revenue and Growth Rate Analysis (2020-2032) & (US$ Million)

Figure 8： Global Residential Intercom Systems Market Sales and Growth Rate Analysis (2020-2032) &（K Unit）

Figure 9： Global Residential Intercom Systems Market Size by Country: 2024 VS 2025 VS 2032 (US$ Million)

Figure 10： Global Residential Intercom Systems Revenue Market Share by Country in 2024

Figure 11： United States Residential Intercom Systems Market Sales and Growth Rate (2020-2032) & (K Unit)

Figure 12： United States Residential Intercom Systems Market Revenue and Growth Rate (2020-2032) & (US$ Million)

Figure 13： Germany Residential Intercom Systems Market Sales and Growth Rate (2020-2032) & (K Unit)

Figure 14： Germany Residential Intercom Systems Market Revenue and Growth Rate (2020-2032) & (US$ Million)

Figure 15： Japan Residential Intercom Systems Market Sales and Growth Rate (2020-2032) & (K Unit)

Figure 16： Japan Residential Intercom Systems Market Revenue and Growth Rate (2020-2032) & (US$ Million)

Figure 17： China Residential Intercom Systems Market Sales and Growth Rate (2020-2032) & (K Unit)

Figure 18： China Residential Intercom Systems Market Revenue and Growth Rate (2020-2032) & (US$ Million)

Figure 19： France Residential Intercom Systems Market Sales and Growth Rate (2020-2032) & (K Unit)

Figure 20： France Residential Intercom Systems Market Revenue and Growth Rate (2020-2032) & (US$ Million)

Figure 21： U.K. Residential Intercom Systems Market Sales and Growth Rate (2020-2032) & (K Unit)

Figure 22： U.K. Residential Intercom Systems Market Revenue and Growth Rate (2020-2032) & (US$ Million)

Figure 23： South Korea Residential Intercom Systems Market Sales and Growth Rate (2020-2032) & (K Unit)

Figure 24： South Korea Residential Intercom Systems Market Revenue and Growth Rate (2020-2032) & (US$ Million)

Figure 25： Canada Residential Intercom Systems Market Sales and Growth Rate (2020-2032) & (K Unit)

Figure 26： Canada Residential Intercom Systems Market Revenue and Growth Rate (2020-2032) & (US$ Million)

Figure 27： Italy Residential Intercom Systems Market Sales and Growth Rate (2020-2032) & (K Unit)

Figure 28： Italy Residential Intercom Systems Market Revenue and Growth Rate (2020-2032) & (US$ Million)

Figure 29： Russia Residential Intercom Systems Market Sales and Growth Rate (2020-2032) & (K Unit)

Figure 30： Russia Residential Intercom Systems Market Revenue and Growth Rate (2020-2032) & (US$ Million)

Figure 31： Mexico Residential Intercom Systems Market Sales and Growth Rate (2020-2032) & (K Unit)

Figure 32： Mexico Residential Intercom Systems Market Revenue and Growth Rate (2020-2032) & (US$ Million)

Figure 33： Brazil Residential Intercom Systems Market Sales and Growth Rate (2020-2032) & (K Unit)

Figure 34： Brazil Residential Intercom Systems Market Revenue and Growth Rate (2020-2032) & (US$ Million)

Figure 35： India Residential Intercom Systems Market Sales and Growth Rate (2020-2032) & (K Unit)

Figure 36： India Residential Intercom Systems Market Revenue and Growth Rate (2020-2032) & (US$ Million)

Figure 37： Vietnam Residential Intercom Systems Market Sales and Growth Rate (2020-2032) & (K Unit)

Figure 38： Vietnam Residential Intercom Systems Market Revenue and Growth Rate (2020-2032) & (US$ Million)

Figure 39： Thailand Residential Intercom Systems Market Sales and Growth Rate (2020-2032) & (K Unit)

Figure 40： Thailand Residential Intercom Systems Market Revenue and Growth Rate (2020-2032) & (US$ Million)

Figure 41： South Africa Residential Intercom Systems Market Sales and Growth Rate (2020-2032) & (K Unit)

Figure 42： South Africa Residential Intercom Systems Market Revenue and Growth Rate (2020-2032) & (US$ Million)

Figure 43： Global Residential Intercom Systems Sales Market Share by Key Manufacturers in 2024

Figure 44： Global Residential Intercom Systems Revenue Market Share by Key Manufacturers in 2024

Figure 45： Global Residential Intercom Systems Industry Competition Landscape

Figure 46： Global Residential Intercom Systems Market Size by Type 2020-2032 (US$ Million)

Figure 47： Global Residential Intercom Systems Market Share by Type: 2025 & 2032

Figure 48： Global Residential Intercom Systems Sales Price Trend Analysis by Different Type (2020-2032) & (USD/Unit)

Figure 49： Residential Intercom Systems Industry Chain Analysis

Figure 50： Global Residential Intercom Systems Revenue Market Share by Application (2020-2032)

Figure 51： Global Residential Intercom Systems Sales Market Share by Application (2020-2032)

Figure 52： Key Interview Objectives

Figure 53： Bottom-Up and Top-Down Research Methods