I did a simple in-class activity with my student about some overlapping terms, including Corporate Communication, Organizational Communication, Public Relations, Strategic Communication, Integrated Marketing Communication (IMC). They did the following conceptual map in terms of definition, focus, audience, scope, purpose, typical activities, theoretical roots, and application domains. I can conclude the results as follows:

Corporate Communication: Management of all internal and external communications to build and maintain a consistent corporate identity and reputation - brand reputation, consistency, corporate identity - internal & external - cross-functional (internal, media, CSR, etc.) - aligning all corporate messaging - annual reports, CSR campaigns, internal newsletters, crisis response - reputation management, identity theory - business, corporate institutions).

Organizational Communication: Studying of communication within organizations, focusing on internal processes and interactions - communication processes & flow - internal (mostly) - internal (employees, departments, leadership) - enhance communication effectiveness within organizational systems - feedback systems, change communication, knowledge sharing - organizational theory, systems theory, interpersonal communication - business, education, healthcare, government).

Public Relations: Management of relationships between an organization and its publics through two-way, ethical communication - relationship-building, reputation management, and public image - external - external publics (media, community, government, customers) - build mutual understanding and trust between organization and stakeholders - press releases, community relations, event planning, crisis communication - excellence theory (Grunig), persuasion theory, media relations - business, politics, non-profits, public institutions).

Strategic Communication: Purposeful use of communication by an organization to fulfill its mission, achieve objectives, and influence key audiences - message planning, audience targeting, and alignment with strategic goals - strategic stakeholders, publics, and decision-makers - message planning & evaluation - achieving strategic objectives through communication - communication audits, campaign development, policy messaging - rhetoric, persuasion, behavior change theory - business, politics, NGOs, public policy).

Integrated Marketing Communication (IMC): Coordinated communication approach that integrates all promotional tools to deliver a consistent brand message - advertising, promotion, branding, and sales communication- marketing-related: advertising, PR, digital media, direct marketing - consumers and customers in target markets - achieve marketing goals through unified brand messaging - Ads, PR, social media, sales promotions, direct marketing - marketing communication theory, brand integration, consumer behavior - consumer products and services, retail, e-commerce, branding.