Human-in-the-Loop (HITL)

Human-in-the-Loop (HITL)

Term explanation

Definition and meaning

Human-in-the-loop (HITL) refers to a design pattern in AI systems where a human is involved at specific decision points to review, approve, or correct the AI's actions before they are executed. Rather than running fully autonomously, the system pauses at predefined checkpoints and waits for human confirmation — particularly for high-stakes or irreversible actions. HITL works alongside AI guardrails as a key governance principle in enterprise Agentic AI, balancing the efficiency of automation with accountability and human judgment.

LIZ AI supports configurable human-in-the-loop workflows: teams can define exactly where they want to review and approve AI-generated presentation content before it is distributed — keeping full control without giving up the benefits of automation.

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Other glossary terms

.pot file extension

A .pot file is a legacy PowerPoint template format used to define reusable styles, layouts, and formatting for presentations. Like its successor .potx, it allows teams to create multiple presentations that share the same visual identity without starting from scratch each time. The .pot format was replaced by .potx in Office 2007, which introduced an open XML-based structure for improved compatibility.

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Open Questions

Open questions invite a full, unrestricted response rather than a simple yes or no. They typically begin with words like 'how', 'what', 'why', or 'tell me about'. In presentations, coaching, interviews, and research, open questions encourage deeper thinking, surface underlying perspectives, and generate richer dialogue. They are essential for understanding audience needs, facilitating discussions, and building engagement during interactive sessions.

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.ppsx file extension

A .ppsx file is a PowerPoint show file that opens directly in slideshow mode, skipping the editing interface. Unlike .pptx files, which open in the editor, a .ppsx starts the presentation immediately when double-clicked. This makes it ideal for distributing finalized presentations to audiences who only need to view the content. The .ppsx format replaced the older .pps format introduced in Office 2007.

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Body language

Body language is the non-verbal information communicated through physical gestures, posture, facial expressions, eye contact, and movement. In presentations and public speaking, body language plays a critical role in how the speaker's confidence, credibility, and emotional state are perceived. Open posture, deliberate gestures, and sustained eye contact signal confidence and engagement, while crossed arms, fidgeting, and avoiding eye contact can suggest nervousness or disinterest. Presenters who master their body language are generally more persuasive and trustworthy.

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