🎥Tachafi's Architecture

Overview of Tachafi's App Architecture

Tachafi's technology stack is built on a robust, scalable, and secure foundation that seamlessly integrates cutting-edge technologies to deliver a comprehensive digital mental health solution. Our architecture is designed to support both our consumer-facing super app and our AI-powered telemedicine platform for clinicians.

Consumer-Facing Super App

• Frontend: The UI is developed using Dart and Flutter, enabling a single codebase for mobile applications (iOS and Android) and web applications, and providing smooth and responsive experience across all platforms. The UI interacts with the backend services via RESTful APIs and WebSockets for real-time communication. Technologies : Dart, Flutter, REST, Websockets.

• Backend: The backend services are developed using Java with the Spring Framework. The Spring Framework provides built-in support for various enterprise features, such as transaction management, dependency injection, and security management. The services expose RESTful APIs to ensure support and integration with the front end as well as interoperability with eventual third party consumers. The services are implemented to be highly scalable allowing them to handle both large number of users and exceptional traffic bursts. Technologies : Java, Spring, Hibernate, Thymeleaf, REST, Websocket, Oauth2.

• Database: The platform relies on a PostgreSQL as a primary database to store structured data. PostgreSQL is a powerful, open-source relational database system known for its reliability, robustness, and performance.

• Security: Authentication and authorization are handled using OAuth 2.0 and JSON Web Tokens (JWT) to secure backend APIs . The whole is built around an open source IAM providing single sign-on (SSO), identity brokering, and user federation. All the components are designed to comply with HIPAA requirements : • All sensitive data is encrypted both in transit and at rest using industry-standard encryption algorithms. • Strict access controls are implemented to ensure that only authorized personnel can access sensitive information. This includes role-based access control (RBAC) and audit logging. • Comprehensive audit logs are maintained for all access and modification events, providing a detailed trail of all interactions with the system. Technologies : OAuth2, JWT, IAM, TLS.

• Third-party integrations: The platform integrates with several third-party services : • Payment gateway • Email provider • Telehealth service (video conferencing) • Health data providers • LLM processors

• Deployment & Scaling: The backend components (services, database, IAM ...) are running as docker containers and will be orchestrated via Kubernetes. The deployment, scaling and resource management will be done using cloud infrastructure provider’s tooling.

AI-Powered Telemedicine Platform for Clinicians

• Frontend: Vue.js for a responsive and interactive web application.

• Backend: Python with Django, offering robust features for handling complex healthcare data and integrations.

• Database: PostgreSQL for reliable, HIPAA-compliant data storage and complex querying capabilities.

• AI and Machine Learning: TensorFlow and PyTorch for advanced AI models in diagnosis assistance and treatment planning.

AI Integration in Telemedicine Platform and EHR

Tachafi's AI integration is a cornerstone of our technology stack, enhancing both the telemedicine platform and EHR systems:

• Natural Language Processing (NLP): Utilized for analyzing patient-clinician interactions, extracting key insights, and automating documentation.

• Predictive Analytics: Machine learning models forecast patient outcomes and suggest personalized treatment plans based on historical data and current symptoms.

• Computer Vision: AI-powered analysis of visual data, such as facial expressions during video consultations, to assist in mental state assessment.

• EHR Integration: AI algorithms seamlessly integrate with existing EHR systems, providing intelligent summarization of patient records and flagging potential issues or treatment opportunities.

Blockchain Integration for Clinical Trials

Tachafi leverages blockchain technology to revolutionize clinical trial management:

• Smart Contracts: Ethereum-based smart contracts automate and enforce trial protocols, ensuring transparency and compliance.

• Decentralized Patient Recruitment: A blockchain-powered platform for efficient, secure, and diverse patient enrollment.

• Data Integrity and Auditability: Immutable record-keeping of trial data, enhancing credibility and reducing fraud.

• Interoperability: Blockchain facilitates secure data sharing between different stakeholders in the clinical trial ecosystem.

Tokenization of Medical Devices (DTx)

Tachafi's innovative approach to Digital Therapeutics (DTx) involves tokenization, bringing the benefits of blockchain to medical devices:

• Asset Tokenization: Each DTx device is represented by a unique non-fungible token (NFT) on the blockchain, enabling transparent tracking and management.

• Smart Device Integration: IoT-enabled DTx devices interact with the blockchain, recording usage data and treatment adherence.

• Token-Based Access Control: Patients and clinicians use tokens to securely access and control DTx devices and related data.

• Incentive Mechanisms: A token economy rewards patients for adherence to treatment plans and participation in research.

Benefits of Blockchain Integration in Healthcare

Clinical Trial Management

• Enhanced Data Integrity: Blockchain's immutable nature ensures that trial data cannot be tampered with, increasing the reliability of results.

• Improved Patient Recruitment: Decentralized platforms allow for wider, more diverse patient pools, accelerating the recruitment process.

• Real-time Monitoring: Smart contracts enable automatic tracking of trial progress and adherence to protocols.

• Streamlined Regulatory Compliance: Blockchain provides a clear audit trail, simplifying regulatory oversight and approvals.

Advantages of Tokenizing Medical Devices

• Enhanced Security: Blockchain technology provides robust protection against unauthorized access and data breaches.

• Improved Traceability: Each device's lifecycle can be tracked transparently, from manufacture to patient use.

• Efficient Management: Tokenization simplifies inventory management, maintenance scheduling, and software updates for DTx devices.

• Novel Funding Models: Tokenization opens up new possibilities for investment in medical device development and deployment.

Security and Privacy Benefits of Web3 Technologies

• Decentralized Identity: Patients have greater control over their personal and health data, deciding what information to share and with whom.

• End-to-End Encryption: Web3 protocols ensure that sensitive health data remains encrypted throughout its lifecycle.

• Granular Access Control: Smart contracts allow for precise, condition-based access to patient data, enhancing privacy.

• Interoperability: Web3 standards facilitate secure data sharing between different healthcare providers and systems, improving care coordination.

Tachafi's innovative technology stack, combining AI, blockchain, and Web3 technologies, sets a new standard for digital mental health platforms. By leveraging these cutting-edge technologies, we ensure secure, efficient, and patient-centric care delivery while opening new frontiers in clinical research and device management.