Nov 13, 2025

10 Actionable Customer Retention Strategies for Hospitality & Service Businesses

In the world of hospitality and services, acquiring a new customer costs five times more than keeping the one you already have. Your most valuable asset isn't just your location or your menu; it's the loyal guest who chooses you time and again. But loyalty isn't a given. It's earned through consistent, positive experiences that make customers feel seen, heard, and valued. The challenge for you, the busy owner, is turning daily interactions and scattered feedback into a repeatable system for growth.

This guide delivers 10 powerful customer retention strategies for small business owners ready to stop guessing and start growing. We're providing actionable frameworks you can implement today. You'll learn how to transform customer feedback from a simple metric into your most powerful operational tool. To collect smarter, you need a system. A Feedback Operating System centralizes all your customer signals—from Google, TripAdvisor, and private surveys—into one intelligent dashboard. This allows you to see the complete picture without the manual chaos.

Throughout this listicle, we'll show you how to use these insights to act faster on opportunities, whether it's recovering a poor experience or using AI to instantly grasp guest sentiment and key themes from thousands of reviews. It's time to stop the revolving door of customer churn and start building a foundation of loyal advocates who drive your business forward. Let's dive into the strategies that will help you grow stronger by keeping the customers you've worked so hard to win.

1. Loyalty Programs and Rewards

A loyalty program is a structured marketing strategy designed to encourage customers to continue using your services. It works by offering tangible rewards, discounts, or exclusive perks in exchange for repeat business, creating a powerful incentive for guests to return. This is one of the most direct and effective customer retention strategies for small business because it gamifies the experience and makes customers feel valued.

Loyalty Programs and Rewards

From the simple "buy 10, get one free" punch card at your cafe to sophisticated, point-based digital systems integrated with your PMS like Mews or Toast, the core principle is the same: reward loyalty to earn more of it. These programs not only boost repeat purchases but also provide invaluable data on customer behavior, helping you personalize future marketing efforts.

How to Implement a Loyalty Program

  1. Define Your Goals: Decide what you want to achieve. Is it increased visit frequency, higher average spend, or more referrals? Your goal will shape the program's structure.

  2. Choose Your Reward System:

    • Points-Based: Customers earn points for every dollar spent, redeemable for rewards.

    • Tiered System: Customers unlock better rewards as they spend more, creating a sense of achievement (e.g., Bronze, Silver, Gold levels).

    • Paid/VIP Club: Customers pay a recurring fee for instant access to exclusive benefits, like a local "dining club."

  3. Keep It Simple: The rules and rewards must be easy to understand. If customers can't quickly grasp how to earn and redeem, they won't participate.

  4. Promote Your Program: Announce your program across all channels: in-store signage, email newsletters, social media, and on your website.

Key Insight: A successful loyalty program makes customers feel like insiders. The rewards should feel exclusive and genuinely valuable, reinforcing their decision to choose your business over a competitor.

Quick Wins with Your Feedback Operating System

Integrate feedback directly into your loyalty program. Use Prompt to Survey, which automatically sends a targeted survey after a loyalty member redeems a reward, to capture their experience in the moment. You can then use AI Summaries to instantly analyze this feedback, identifying what rewards are most appreciated or where the redemption process has friction. This helps you collect smarter data to grow stronger, refining your program to be more effective.

2. Exceptional Customer Service

Exceptional customer service is the practice of exceeding guest expectations during every interaction, from initial booking to post-visit follow-up. It transforms routine transactions into memorable, positive experiences that build emotional connections and trust. This is a foundational customer retention strategy for small business because a single, outstanding support experience can create a customer for life, turning them into a vocal advocate for your brand.

Exceptional Customer Service

World-class service isn't just about solving problems; it's about making customers feel heard, respected, and valued. Legendary examples like a hotel concierge going above and beyond or a restaurant owner remembering a guest's favorite table demonstrate that superior service creates a powerful competitive advantage that price alone cannot beat.

How to Deliver Exceptional Customer Service

  1. Empower Your Team: Train your staff thoroughly on your services and soft skills. Give them the autonomy to resolve issues on the spot without needing layers of approval, which speeds up solutions and delights guests.

  2. Be Accessible and Responsive: Offer support through multiple channels (phone, email, social media) and set clear expectations for response times. Aim to answer all inquiries within hours, not days.

  3. Personalize Every Interaction: Use the customer's name and reference their history. Acknowledging their loyalty shows you see them as an individual, not just a reservation number.

  4. Proactively Follow Up: After a stay or a meal, send a follow-up message to ensure satisfaction. This simple act shows you care about their long-term experience.

Key Insight: Customer service is not a department; it's an attitude. Every employee, from the owner to the front-line staff, should be obsessed with creating positive guest outcomes.

Quick Wins with Your Feedback Operating System

A negative experience is an opportunity to create a lifelong fan. Use FeedbackRobot's Resolutions Engine, which provides automated service recovery. When negative feedback is received, this system automatically triggers a workflow. If a guest reports a problem, it can instantly alert the manager and create a ticket to ensure the issue is fixed, turning a potential one-star review into a five-star story of recovery. This automated process ensures you can learn how to respond to customer complaints effectively and act faster to save at-risk customers.

3. Personalization and Segmentation

Personalization is using guest data to create tailored experiences, communications, and recommendations. By segmenting your audience into distinct groups based on demographics, visit history, or behavior, you can move beyond generic messaging and speak directly to individual needs. This is one of the most powerful customer retention strategies for small business because it makes customers feel seen, understood, and individually valued.

Personalization and Segmentation

From a local hotel sending an email about a "pet-friendly weekend" package to a past guest who brought their dog, to a restaurant suggesting a diner's favorite wine, the goal is relevance. When you deliver offers that align with a customer's specific interests, you build a stronger connection that fosters loyalty.

How to Implement Personalization and Segmentation

  1. Start with Data Collection: Gather data from all touchpoints, including your PMS (like Mews or Cloudbeds), POS (like Toast or Lightspeed), and direct feedback. Even basic information can be a powerful starting point.

  2. Define Your Segments: Group customers based on shared characteristics. Common segments include:

    • Demographic: Age, location.

    • Behavioral: Visit frequency, average spend, services used.

    • Psychographic: Interests, values, or travel style (e.g., "business traveler," "family vacationer").

  3. Use the Right Tools: Implement marketing automation or a CRM to manage your segments and deliver personalized messages at scale.

  4. Tailor Your Messaging: Craft unique emails and offers for each segment. A high-value repeat guest should receive different communications than a first-time visitor.

Key Insight: True personalization isn't just using a guest's first name in an email. It's about demonstrating you understand their needs and preferences, using data to deliver value.

Quick Wins with Your Feedback Operating System

Supercharge your segmentation with direct feedback. Use FeedbackRobot’s Radar to unify all your reviews and surveys into one place, allowing you to see trends within specific customer segments (e.g., families at your hotel love the pool but find the restaurant slow). AI Summaries will then instantly analyze these responses, revealing what each segment values most. This turns feedback into a precision tool to collect smarter and refine your services for maximum impact.

4. Community Building and Engagement

Community building is creating a space where your customers can connect with your brand and with each other. It transforms the transactional customer-business relationship into a powerful, emotional bond based on shared interests. This is one of the most durable customer retention strategies for small business because it fosters a sense of belonging that makes your brand an integral part of a customer's lifestyle.

From a local coffee shop hosting open mic nights to a dedicated Facebook group for regulars at your restaurant, a strong community turns passive buyers into active brand advocates. These engaged customers not only stay loyal but also provide invaluable feedback and generate organic word-of-mouth marketing.

How to Build a Community

  1. Choose Your Platform: Identify where your customers already gather. This could be a Facebook Group, a local meetup, or exclusive events at your location.

  2. Establish Clear Guidelines: Set the tone and rules for interaction early on. A well-moderated space ensures discussions remain positive and respectful.

  3. Be an Active Participant: Don't just create the space; live in it. Your role is to facilitate conversations, answer questions, share exclusive content, and make members feel heard.

  4. Empower Your Members: Spotlight user-generated content, feature member stories, and create opportunities for them to take leadership roles (e.g., event hosts).

Key Insight: A community isn't just a marketing channel; it's a shared asset. The goal is to facilitate genuine connections between people, with your brand as the common ground.

Quick Wins with Your Feedback Operating System

Use your community as a direct line to your most engaged customers. Use Radar, our unified review intelligence feature, to monitor discussions and sentiment from community platforms alongside all other feedback channels. This gives you a complete view of what your top customers are saying. When a community member shares a great idea or a common pain point, use that as a trigger for a Prompt to Survey to dig deeper. This proactive engagement makes members feel influential, helping you grow stronger.

5. Regular Communication and Content Marketing

Regular communication involves maintaining valuable, non-promotional touchpoints with your customers through channels like email newsletters, blogs, and social media. Instead of constantly selling, this strategy focuses on providing genuine utility, positioning your business as a trusted resource and keeping your brand top-of-mind. This is a foundational element among customer retention strategies for small business because it builds a relationship that transcends transactions.

From a local hotel sending emails with "insider tips" for visiting the city to a spa sharing wellness advice on social media, the goal is to offer expertise and value freely. This approach nurtures customer relationships, making them more likely to choose you when they are ready to book.

How to Implement Regular Communication

  1. Develop a Content Calendar: Plan your content around seasonal events, customer needs, and local happenings. Consistency is key to staying top-of-mind.

  2. Follow the 80/20 Rule: Dedicate 80% of your content to providing value (educational, entertaining, or inspiring) and only 20% to direct promotion. This builds trust.

  3. Segment Your Audience: Send targeted content. A new guest might receive a welcome series, while a long-time patron could get an exclusive sneak peek at a new menu.

  4. Repurpose Content: Maximize your effort. A blog post about local attractions can become a series of social media tips, a short video, and a segment in your email newsletter.

Key Insight: Effective communication isn't about being loud; it's about being relevant. When customers know they can count on you for valuable insights, not just sales pitches, they are far more likely to remain loyal.

Quick Wins with Your Feedback Operating System

Use your communication channels to gather smarter data. After sending a newsletter, embed a Prompt to Survey link asking, "Was this content helpful?" Use AI Summaries to instantly analyze responses and identify which topics resonate most with your audience. This feedback loop ensures your content strategy is driven by what customers actually want, helping you build a stronger, more engaged community.

6. Surprise and Delight Initiatives

Surprise and delight is the practice of exceeding customer expectations with unexpected, positive gestures. These are unsolicited acts of kindness, bonuses, or personalized touches that create memorable, emotional connections. This approach is one of the most powerful customer retention strategies for small business because it shows customers you genuinely care about them as individuals.

From a hotel offering a complimentary room upgrade upon hearing it's a guest's anniversary to a restaurant sending out a free dessert to a table of regulars, these moments forge strong brand loyalty. They are not part of a formal program but are spontaneous gestures that make a customer feel uniquely seen and valued, turning them into passionate brand advocates.

How to Implement Surprise and Delight Initiatives

  1. Identify Key Moments: Track guest milestones like birthdays, anniversaries, or special occasions mentioned during booking or conversation. Use your reservation system notes for this.

  2. Personalize the Gesture: The surprise should feel authentic, not automated. Use customer data to offer something meaningful to them, like a free glass of their favorite wine or a product sample related to their past purchases.

  3. Create a Small Budget: You don't need a massive budget. Allocate a modest monthly amount for these initiatives. The return on investment comes from profound goodwill and positive word-of-mouth.

  4. Empower Your Team: Give your front-line staff the autonomy and a small discretionary budget to "delight" customers on the spot when they see an opportunity.

Key Insight: The power of a surprise and delight initiative lies in its unexpected nature. Because it isn't something the customer earned or anticipated, the gesture feels more like a genuine gift, creating a deep and lasting positive impression.

Quick Wins with Your Feedback Operating System

Use customer feedback to fuel your surprise and delight efforts. Monitor your Radar feed to spot loyal customers who consistently leave positive reviews. You can then flag these advocates for a future surprise. AI Summaries, which provide instant insights and sentiment analysis, can help you understand common positive themes, revealing what small perks your customer base values most. This ensures your gestures always hit the mark and help you grow stronger customer relationships.

7. Customer Feedback and Continuous Improvement

Actively listening to your customers is a foundational business strategy. This approach involves systematically soliciting, analyzing, and acting on guest feedback to continuously improve your services and overall experience. This is a critical one of the customer retention strategies for small business because it shows customers you value their opinions and are committed to evolving to meet their needs.

From a local restaurant changing its menu based on comment cards to a hotel chain redesigning its rooms based on guest surveys, the principle is universal. When customers see their suggestions implemented, they feel a sense of ownership and partnership, transforming them from simple buyers into loyal advocates.

How to Implement a Feedback Loop

  1. Make It Easy to Give Feedback: Don't make customers jump through hoops. Use accessible channels like short email surveys, QR codes on receipts linking to a form, or simple comment boxes on your website. Explore different question types with these powerful customer feedback survey templates.

  2. Actively Listen and Acknowledge: Respond to all feedback, especially the negative. A simple "Thank you, we're looking into this" shows you're paying attention.

  3. Analyze and Identify Trends: Don't just look at feedback case-by-case. Track trends over time to identify recurring issues or widespread suggestions. This helps prioritize changes that will have the biggest impact.

  4. Close the Loop: This is the most crucial step. Publicly announce changes made because of customer suggestions. Use newsletters or social media to say, "You asked, we listened!"

Key Insight: Customer feedback is a gift. It provides a direct roadmap for improvement, highlighting your blind spots and revealing what customers truly value. Ignoring it is like turning down free, expert business consulting.

Quick Wins with Your Feedback Operating System

Transform raw feedback into actionable intelligence. Use Prompt to Survey to request feedback at key moments, like after a guest checks out or a diner pays their bill. Instead of manually sifting through responses, use AI Summaries to instantly analyze sentiment and pinpoint recurring themes. Our instant insights and sentiment analysis allow you to act faster, identifying critical issues (like "slow service") and popular suggestions without getting lost in the data, ensuring your business grows stronger with every piece of feedback.

8. Exclusive Access and VIP Programs

While a standard loyalty program rewards everyone, a VIP program elevates this concept by creating tiered levels of customer status. This strategy focuses on recognizing and rewarding your most valuable guests with benefits that aren't available to everyone else, making it a powerful tool among customer retention strategies for small business. It creates an aspirational ladder that motivates all customers to increase their engagement.

This approach is used effectively by hotel chains with their elite status tiers and by local restaurants with "mug clubs." The core idea is to make your best customers feel seen, appreciated, and special. This deepens their emotional connection to your brand, transforming them from repeat buyers into passionate advocates.

How to Implement a VIP Program

  1. Define Your Tiers: Establish clear criteria for each level based on annual spending, visit frequency, or points accumulated. Make the progression clear and feel achievable.

  2. Create Genuinely Valuable Benefits: The perks must be worth the effort. Consider offering:

    • Early Access: Let VIPs book reservations or access new menus before anyone else.

    • Exclusive Products: Offer off-menu items or services only available to top-tier members.

    • Enhanced Service: Provide a dedicated contact, complimentary upgrades, or priority seating.

  3. Communicate Status and Progress: Regularly update members on their tier status and how close they are to the next level. Celebrate when they achieve a new tier.

  4. Surprise and Delight: Go beyond the stated benefits. Send unexpected gifts, personalized notes, or exclusive event invitations to your top members.

Key Insight: A successful VIP program isn't just about rewarding spending; it's about fostering a community and a sense of belonging. The exclusivity of the benefits is what creates the desire to belong.

Quick Wins with Your Feedback Operating System

Use your customer data to identify potential VIPs and understand what they value most. With AI Summaries, which provide instant insights and sentiment analysis, you can analyze feedback from your highest-spending customers to discover common requests or preferences that can become your next great VIP perk. After a VIP member uses an exclusive benefit, use Prompt to Survey to ask for their opinion. This targeted feedback helps you act faster to refine your program and grow a stronger, more dedicated customer base.

9. Win-Back Campaigns and Re-engagement

A win-back campaign is a strategic marketing effort aimed at re-engaging customers who have become inactive. Instead of focusing solely on acquiring new customers, this approach recognizes that it's often more cost-effective to reactivate a past guest who is already familiar with your brand. This is a crucial component of any robust plan for customer retention strategies for small business, as it directly addresses customer churn.

From a hotel sending a "We miss you" email with a special offer to a local spa offering a reduced rate for former clients to return, the goal is the same: remind them of the value you offer and give them a compelling reason to come back.

How to Implement a Win-Back Campaign

  1. Define 'Inactive': First, determine the trigger. For a restaurant, it might be 90 days without a visit. For a hotel, it could be one year. This definition is critical for automating the process.

  2. Segment Your Lapsed Customers: Not all inactive customers are the same. Segment them based on past spend or frequency. This allows for more personalized messaging.

  3. Craft a Compelling Offer: Your offer should be more than a standard promotion. It could be a significant discount, an exclusive package, or an upgrade. The goal is to make them feel valued.

  4. Automate the Outreach: Use your CRM or email marketing platform to automatically trigger the win-back campaign when a customer meets your 'inactive' criteria.

Key Insight: A successful win-back campaign isn't just about a discount. It's an opportunity to show a customer you noticed their absence, value their business, and are actively working to improve the experience.

Quick Wins with Your Feedback Operating System

Use feedback to power your re-engagement. Before a customer churns, Radar, our unified review intelligence dashboard, can provide early warnings by flagging guests with declining sentiment or negative reviews. When a win-back email is sent, include a Prompt to Survey link asking, "What can we do to win you back?" AI Summaries will analyze these responses to identify common reasons for churn, allowing you to fix systemic issues. This transforms a simple tactic into a powerful tool to collect smarter and grow stronger.

10. Strategic Partnerships and Cross-Promotion

A strategic partnership is a collaboration with a complementary, non-competing business to create mutual value for both your customers and your bottom line. By joining forces, you can offer your existing customers expanded benefits, new products, or exclusive deals. This is a powerful customer retention strategy for small business because it leverages shared audiences to enhance the customer experience.

Think of a local yoga studio partnering with a nearby juice bar to offer a discount package, or a boutique hotel collaborating with a tour operator for exclusive excursions. The core principle is to create a win-win-win scenario: customers get more value, you strengthen their loyalty, and your partner gains new exposure.

How to Implement a Strategic Partnership

  1. Identify Potential Partners: Look for businesses that share your target audience and brand values but don't directly compete. A high-end restaurant could partner with a local theater, not another restaurant.

  2. Define the Mutual Benefit: Create an offer that is valuable for both customer bases. This could be a joint discount, a bundled service package, or a co-hosted event.

  3. Keep It Simple for the Customer: The joint offer must be easy to understand and redeem. Complicated rules will create friction and discourage participation.

  4. Promote the Partnership: Announce the collaboration across all your marketing channels. Use email, social media, and in-store signage to let your loyal customers know about the new value you’re providing them.

Key Insight: The best partnerships feel like a natural extension of your brand. They should enhance your customer's lifestyle or solve a related problem, reinforcing your business's role as a trusted resource.

Quick Wins with Your Feedback Operating System

Gauge the success of your partnership by capturing direct feedback. Use Prompt to Survey to ask customers who redeem a partner offer about their experience. You can then use AI Summaries, which provide instant insights and sentiment analysis, to understand their feedback. Is the partner’s service meeting your customers' expectations? This data allows you to act faster to refine your collaborations and ensure they grow stronger customer loyalty, not weaken it.

10-Point Comparison of Customer Retention Strategies for Small Businesses

Strategy

Implementation complexity

Resource requirements

Expected outcomes

Ideal use cases

Key advantages

Loyalty Programs and Rewards

Medium — platform setup and ongoing management

Moderate tech, integration, budget for rewards

Increased repeat purchases and measurable LTV uplift

Retail, food service, subscription businesses

Incentivizes repeat buying, yields customer data

Exceptional Customer Service

Medium–High — training and process development

Significant staff training, staffing and quality control

Strong emotional loyalty, reduced churn, referrals

All businesses, especially service-based

Differentiates brand, drives word-of-mouth

Personalization and Segmentation

High — data systems and analytics required

Analytics tools, skilled staff, compliance effort

Higher engagement, improved AOV and conversion

E‑commerce, SaaS, subscription and online services

More relevant interactions, efficient marketing spend

Community Building and Engagement

Medium — ongoing moderation and programming

Time, community managers, event resources

Strong advocacy, user-generated content, lower support load

Consumer brands, lifestyle, fitness, tech

Organic advocacy, richer customer insights

Regular Communication and Content Marketing

Low–Medium — consistent content production

Content creators, editorial planning, basic tools

Improved brand visibility, trust, SEO and lead gen

All businesses, especially B2B and services

Low cost, builds authority and long-term engagement

Surprise and Delight Initiatives

Low–Medium — creative but targeted execution

Small budgets for gifts/upgrades, personalization effort

Memorable emotional impact, social shares

Premium services, luxury brands, high-value segments

Creates strong emotional ties and shareable moments

Customer Feedback and Continuous Improvement

Low–Medium — feedback systems and action processes

Survey/review tools, analytics, commitment to act

Product/service improvements, higher satisfaction

All businesses, especially competitive markets

Identifies issues early, shows customers they’re heard

Exclusive Access and VIP Programs

Medium–High — tier design and operational complexity

CRM integration, premium benefits budget, dedicated support

Increased CLV, aspirational engagement, premium pricing

High-value businesses, luxury brands, subscriptions

Rewards top customers, motivates higher spend

Win-Back Campaigns and Re-engagement

Low — automation and targeted messaging

Automation tools, accurate activity tracking, offers

Recover lapsed customers at lower cost than acquisition

Subscriptions, recurring-purchase businesses

Cost-effective reacquisition, leverages existing familiarity

Strategic Partnerships and Cross-Promotion

Medium — partner alignment and coordination

Partnership management time, legal/marketing coordination

Expanded reach, shared costs, new revenue channels

B2B, SaaS, retail, service-based businesses

Access new audiences, reduce marketing cost via collaboration

Stop Guessing, Start Growing: Your Feedback Operating System

You’ve explored ten powerful customer retention strategies. Each one offers a pathway to transforming one-time buyers into lifelong advocates. Yet, across all these tactics, a single, powerful thread connects them: a deep, active understanding of your customer.

Loyalty programs fail without knowing what rewards truly motivate. Personalization is impossible without data on guest preferences. You can't scale exceptional service without identifying friction points in the customer journey. The success of every strategy in this guide hinges not on what you think your customers want, but on what they tell you they want.

This is where many busy owners fall short. They treat feedback as a reactive, manual task—something to check when there's a fire to put out. To master retention, you must shift to a proactive mindset. You need an operating system for feedback that automates collection, analysis, and action.

From Manual Effort to Automated Growth

Imagine running your hotel or restaurant without a PMS or POS system. You’d be buried in manual work and blind to critical trends. The same is true for customer feedback. Relying on manually checking different review sites, spreadsheets, and email inboxes is inefficient and leaves revenue on the table.

A Feedback Operating System is no longer a luxury; it's a necessity. It builds a systematic, automated loop: Collect Smarter, Act Faster, and Grow Stronger.

Instead of guessing which retention strategies will work, you let your customers guide you. Their feedback becomes the engine that powers every decision, turning abstract concepts into a concrete, data-driven action plan.

Activate Your Feedback Operating System with FeedbackRobot

The strategies in this article are your playbook, but FeedbackRobot is the platform that lets you run the plays flawlessly. It automates the most time-consuming parts of managing the guest experience, giving you back time to focus on what you do best: serving your customers.

Here’s how our features directly empower the strategies we've discussed:

  • Radar (Unified Review Intelligence): Stop jumping between Google, TripAdvisor, Yelp, and more. Our Radar feature is the unified review intelligence hub that pulls all your public reviews into a single dashboard. Get a real-time, 360-degree view of your online reputation to spot trends across all locations.

  • Prompt to Survey: A customer leaves a glowing 5-star review. Don't let that momentum die. Our Prompt to Survey feature automatically sends them a follow-up link to a private, detailed survey, helping you capture deeper insights from your happiest customers while the experience is still fresh.

  • AI Summaries (Instant Insights & Sentiment Analysis): Who has time to read hundreds of reviews? Our AI Summaries feature provides instant insights and sentiment analysis, doing the work for you. It distills thousands of comments into actionable themes so you'll know in seconds if customers are raving about your new menu or flagging slow service on Tuesdays.

  • Resolutions Engine (Automated Service Recovery): A negative experience doesn't have to mean a lost customer. When a poor rating is detected, our Resolutions Engine provides automated service recovery. It can alert the right manager, create a support ticket, and send a personalized apology with an offer to make things right—turning a detractor into a loyal advocate before they even leave your property.

By integrating these tools, you create a powerful system to collect smarter, act faster, and grow stronger. Customer feedback is no longer just a score; it becomes your most valuable strategic asset.

Ready to turn customer feedback into your biggest competitive advantage? See how FeedbackRobot can help you automate your retention efforts and build a business customers love. Start your free trial today and discover the power of a true Feedback Operating System.