SecurityEngineers do not need to memorise every control, but they need to know how to map controls to the pipeline and generate evidence automatically. This is a short guide to four common frameworks and compliance-as-code in DevSecOps.
Duy Tran11 min
SecurityA good production image is small, non-root, has no shell, is scanned and is signed. This article covers Docker/OCI image hardening techniques together with a Cosign keyless signing workflow using GitHub OIDC.
Duy Tran9 min
SecurityShift-left is not about dumping work on developers. It is about automating security controls close to where defects are introduced, so teams can fix fast and security becomes a default property of the system.
Duy Tran8 min
SecurityStrong defense needs three things: structured logs, ATT&CK-mapped detection rules and rehearsed IR runbooks. This article summarises how to build a detection-as-code program and blameless post-mortems for DevSecOps teams.
Duy Tran10 min
SecurityStatic image scanning will not catch abnormal behavior at runtime. Combine admission policies (Kyverno) to block non-compliant workloads with runtime monitors (Falco) to detect shell-in-container and lateral movement.
Duy Tran9 min
SecurityBefore talking about DAST, IAST or supply chain, every pipeline needs three basic layers: SAST for code, SCA for dependencies, secret scanning for keys/tokens. Here is how to set them up with Semgrep, Trivy and Gitleaks.
Duy Tran10 min
SecurityAfter xz, npm typosquats and build poisoning, supply chain attacks have become the most common vector. SLSA + SBOM + Sigstore is the open trio of standards that lets you prove where, how and by whom an artifact was built.
Duy Tran10 min
SecurityA threat model does not need to be a 50-page document. A 60-minute session with a level-1 DFD, STRIDE and a risk register is enough to avoid the design flaws that show up repeatedly in audits and pentests.
Duy Tran9 min
Kiến trúc hệ thốngHow well does OMOP CDM fit Vietnam? This article analyzes the policy context (Decision 3516/QĐ-BYT, Personal Data Protection Law 2025, Medical Examination and Treatment Law 15/2023, electronic health records on VNeID), Ministry of Health catalog mapping, custom vocabularies, and a roadmap for a national research data lake.
Duy Tran15 min
Kiến trúc hệ thốngBy 2026, mature organizations run both FHIR (operational) and OMOP (analytics). This article walks through resource ↔ table mapping, the FHIR-OMOP-on-FHIR working group, Pathling, the Bulk Data Export pipeline, and deployment patterns for Vietnam.
Duy Tran14 min
Kiến trúc hệ thốngA 100M-event CDM in production behaves nothing like the Eunomia sample. This article covers schema design, indexing, partitioning by person_id, vacuum, backup, security under Vietnam's Personal Data Protection Law 2025 (effective Jan 1, 2026), audit logging, and vocabulary upgrades.
Duy Tran14 min
Kiến trúc hệ thốngHADES (Health Analytics Data-to-Evidence Suite) is the OHDSI bundle of R packages for Patient-Level Estimation, Patient-Level Prediction, Characterization, and Self-Controlled Case Series. This article walks from install to publishing a network study.
Duy Tran16 min
Kiến trúc hệ thốngATLAS is the official OHDSI cohort builder; Data Quality Dashboard runs more than 3,000 quality checks; ACHILLES profiles each CDM. This article walks through installing Broadsea, defining cohorts, reading DQD, and acting on results.
Duy Tran14 min
Kiến trúc hệ thốngETL from a HIS/EHR/claims source to OMOP CDM takes 3-6 months from scratch. This article walks through the OHDSI standard pipeline: WhiteRabbit profiling, RabbitInAHat design, USAGI mapping, implementation with SQL/Perseus/dbt, and validation with DQD.
Duy Tran18 min
Kiến trúc hệ thốngA deep dive into the seven most important tables in OMOP CDM 5.4 — schema, foreign keys, ETL conventions, common pitfalls (Measurement vs. Observation, Drug_Exposure vs. Drug_Era), and 10 popular RWE SQL patterns.
Duy Tran18 min
Kiến trúc hệ thốngVocabulary is the hardest but most important part of OMOP. This article explains Concepts, Standard vs. Source, Domain, Vocabulary, ConceptRelationship, and ConceptAncestor — plus the Athena download/lookup workflow for Vietnamese projects.
Duy Tran16 min
Kiến trúc hệ thốngWhich Common Data Model fits your organization? This article compares OMOP, FHIR, i2b2, PCORnet, and Sentinel across schema, vocabulary, governance, tooling, and use cases — and provides a decision tree to help you pick.
Duy Tran13 min
Kiến trúc hệ thốngReal-World Evidence (RWE) is changing how the FDA, EMA, and other regulators make decisions. OMOP CDM is the data standard that lets you run a single study across hundreds of organizations at once. This article introduces OHDSI, CDM 5.4, and the Vietnam context.
Duy Tran14 min
AIRequirement changes are normal, but uncontrolled changes will destroy the sprint, scope, testing and release. This article guides BAs in managing baselines, change requests, impact analysis, sign-off and traceability in both Agile environments and traditional projects.
Duy Tran16 min
AISoftware BA does not need API code but needs to understand endpoint, payload, validation, error code, events, data lineage and contract. This article provides integration request templates, scheduling examples and checklists to help BA work better with Dev/Data/QA.
Duy Tran17 min
AIA good workshop is not a crowded meeting. This article guides BAs in preparing goals, agendas, questions, facilitation techniques, conflict resolution, and finalizing action items after the workshop.
Duy Tran10 min
AIBAs do not need to draw every type of diagram, but need to know when to use BPMN, activity diagram, sequence diagram, state diagram and domain model. This article shows how to choose a diagram, for example, set a schedule and a checklist to review the diagram before handoff.
Duy Tran16 min
AIUAT is not just about letting users test a few screens. This article guides BA to create a UAT plan, select scenarios, prepare test data, manage defects, training, rollout and decide to go/no-go.
Duy Tran12 min
AIBusiness rules are the part that is most likely to cause rework if the BA writes vaguely. This article guides how to classify rules, write atomic rules, use decision tables, for example approving loan applications and review checklists before putting them into SRS, user stories or test cases.
Duy Tran15 min
AIBA and QA are an important couple to turn requirements into test scenarios. This article explains how to coordinate with QA, classify severity/priority, triage defects, and manage regression scope before release.
Duy Tran11 min
AIBAs do not need to be a security engineer, but must know how to write requirements about authentication, authorization, audit log, data masking, consent, retention, PII/PHI/PCI and compliance to avoid missing the spec.
Duy Tran12 minAIA good handoff helps Dev/QA understand the requirements correctly before the sprint starts. This article provides a handoff checklist, Three Amigos agenda, examples of converting acceptance criteria into test scenarios and how to manage open questions.
Duy Tran11 minAIRTM helps BA trace from business objective to requirements, user stories, test cases and release. This article shows you how to create a minimalistic RTM that can be used in Agile, Waterfall, and compliance projects.
Duy Tran10 minAIFunctional requirements say what the system does, while NFR says how well the system does it. This article guides BAs to write measurable NFRs, quality attribute scenarios, edge cases and review checklists before the sprint.
Duy Tran12 minAIBRD and SRS are two important artifacts but are often confused. This article explains the difference, template structure, full example for a scheduling feature and review checklist before handoff to Dev/QA.
Duy Tran14 min
AINew BAs often learn BABOK, SDLC, Scrum, BRD, SRS, and user stories in pieces, so it's easy to get confused. This article maps the whole thing into a practical work flow from idea to release.
Duy Tran12 min
AIBusiness BA and Software BA have many intersections but are not the same. This article explains the role, artifacts, skills, daily work examples, and learning paths so you know which direction you need to take.
Duy Tran10 min
AIBAs need to persuade difficult stakeholders and pass competitive interviews. AI can act as a stakeholder simulator, mock interviewer, and devil's advocate for you 24/7. A guide to prompt templates, practice scenarios, and how to evaluate simulation quality for real improvement.
Duy Tran12 min
AIBAs working with AI in Fintech must understand AML/KYC regulations. BA in Healthcare needs to know HIPAA and clinical workflows. BA in eCommerce focuses on personalization and fraud. A guide to domain-specific skills, regulations, and AI use cases for each industry.
Duy Tran15 min
AIBAs aiming for Senior AI BA or transitioning to AI PM need a substantive portfolio — not just a list of tools. A guide to structuring AI project case studies, choosing which artifacts to showcase, and how to tell your story on LinkedIn and your CV.
Duy Tran12 min
AIBAs need dashboards to prove AI features deliver value, monitor health after go-live, and report to stakeholders. A guide to building dashboards with Looker Studio, Power BI, and Metabase — focused on business metrics and AI quality metrics.
Duy Tran12 min
AIAI features have a completely different risk profile from regular features: model drift, data poisoning, hallucination cascades, and bias amplification. BAs need a proper Risk Register, an incident response plan, and a post-mortem template specifically designed for AI incidents.
Duy Tran13 min
AIBAs spend too many hours updating tickets, creating sub-tasks, and manually following up on status. Jira Automation and Azure DevOps Rules can handle most of that. A practical guide to the most important automation rules for BA in AI projects.
Duy Tran12 min
AIAI stories are harder to estimate than regular features because they depend on data readiness, model iterations, and experiment uncertainty. A guide to adapted Planning Poker for AI work, 3-point estimation, spike stories, and how to communicate uncertainty to stakeholders.
Duy Tran11 min
AIBacklog refinement consumes more BA hours than anything else — yet it's also where AI can help the most: duplicate detection, story splitting, AC suggestion, and dependency mapping. A practical guide to integrating AI into your refinement workflow without losing control.
Duy Tran11 min
AIData Governance isn't just "keeping data safe." For AI features, BA must set up data lineage (trace data from source), retention policy (how long to keep), PII classification (what's sensitive), and provenance tracking (who uses data, when). Step-by-step guide from policy to implementation checklist.
Duy Tran10 min
AIBA should understand AI costs well enough to estimate budgets, negotiate with stakeholders, and make make-or-buy decisions. This article explains token pricing, latency cost, cloud AI vs self-hosted options, and practical FinOps practices without requiring DevOps expertise.
Duy Tran12 min
AIWhen AI produces wrong results, who is responsible? Who decides safety thresholds? When escalation is needed, who do we go through? RACI matrix helps BA clearly define roles, responsibilities, and decision rights for all AI-related actions — from prompt changes to production releases.
Duy Tran9 min
AIHuman-in-the-loop is not just "adding a confirm button". BA must design escalation thresholds, routing rules, SLA for agent review, and feedback loops. A complete HITL design guide with decision matrix and escalation flow templates.
Duy Tran13 minAIBA doesn't need to code APIs, but must understand request/response, error handling, data contracts, and validation rules. This guide helps BA read OpenAPI specs, review API design, and write data quality acceptance criteria for AI features.
Duy Tran9 min
AIToo many BA certifications — ECBA, CCBA, CBAP, IIBA-AAC, IIBA-CBDA, PMI-PBA, BCS. Which fits you? This guide analyzes each by prerequisites, real-world value, market demand, and helps you plan a 12-month roadmap based on your current level.
Duy Tran10 min
AIBA should not evaluate AI by intuition like "the output looks okay". You need a clear protocol: evaluation criteria, scoring rubric, blind test methodology, and a go/no-go framework. A full guide from test set design to sign-off decisions.
Duy Tran14 min
AIBA do not need to design pretty UI, but they do need wireframes clear enough for teams to understand and flow diagrams accurate enough so developers do not ask again. Practical guidance on using Figma and Draw.io for BA, especially for AI features with fallback paths, confidence display, and human override.
Duy Tran11 min
AIMany teams launch AI features then don't know if they succeeded. This guide teaches BA to build evaluation framework before launch — define business KPIs + technical KPIs + experience KPIs, 30/60/90-day review schedule, and use metrics to decide next steps.
Duy Tran9 min
AIBA do not need to code to perform prompt testing. Red-teaming is a critical BA skill when working with AI features: finding edge cases, jailbreak attempts, bias, and unwanted output before release. Practical guidance with test case templates.
Duy Tran13 minAIUAT for AI features isn't like traditional UAT — you test not just business logic but AI output quality, edge cases, bias, and whether users actually trust the AI. Complete guide from UAT plan, business readiness checklist to go/no-go decision framework for BA.
Duy Tran10 min
AIBA use Confluence or Notion not just to store documents, but to create a single source of truth for the whole team. A guide to structuring spaces, BRD/FRD templates, linking requirements with Jira tickets, and managing an assumption log in AI projects.
Duy Tran11 minAIFairness, explainability, privacy, and human override aren't just buzzwords — they're real requirements BA must capture when building AI features. This guide teaches how to write Responsible AI requirements into BRD/SRS, verify with checklists, and align with frameworks like EU AI Act and NIST AI RMF.
Duy Tran11 min
AIBA doesn't need to know fine-tuning or embeddings — but needs to write good prompts for daily work and to specify AI features. This guide teaches the RPCF framework: Role, Purpose, Context, Format — how BA designs reproducible, controlled prompts.
Duy Tran10 min
AIStrategy Analysis helps BA understand organizational context before writing requirements. This article shows how to apply SWOT, PESTLE, Impact Mapping, and Value Stream Mapping for strategic analysis, especially when organizations are implementing AI features.
Duy Tran13 min
AIBA Planning is not just filling in scope in a template. In AI projects, the BA plan must include iterative checkpoints, assumption tracking for data/model behavior, and escalation paths when AI feature output drifts from requirements. A practical guide with a BA Monitoring Framework.
Duy Tran12 min
AIWhen AI participates in business processes, traditional UML/BPMN diagrams lack ways to represent AI actors, fallback paths, and human-in-the-loop. This guide teaches BA to diagram AI-assisted flows correctly — with happy path, error path, confidence threshold, and escalation to human.
Duy Tran12 minAIPoorly written user stories are the root cause of 80% of "spec mismatch" bugs and sprint rework. This guide teaches BA to write stories using the INVEST standard, acceptance criteria in BDD Given/When/Then format, and use AI to automatically detect missing edge cases.
Duy Tran11 min
AIBAs don't need to code AI, but they need to understand enough to write correct requirements and work effectively with the technical team. LLM, RAG, hallucination, confidence scores, and guardrails explained in business language — with real-world examples.
Duy Tran15 minAIBABOK (Business Analysis Body of Knowledge) is the standard reference from IIBA that defines the full body of knowledge, skills, and techniques of a professional BA. This article explains the 6 Knowledge Areas, 50+ techniques, and how to apply BABOK in real AI projects.
Duy Tran12 min
AIA Business Case is the document a BA needs to write to justify investment in an AI project. This article provides a full template and section-by-section guidance - from problem statement to financial analysis to risk assessment.
Duy Tran12 minAIA business requirements checklist helps BA ensure that no critical condition is missed before handoff to the dev team. This article provides a full checklist for BA working on AI projects - from functional requirements to AI-specific constraints.
Duy Tran10 minAITraditional Elicitation techniques consume many hours of note-taking and synthesis. This guide teaches BA how to use AI to auto-summarize interviews, automatically cluster insights, detect requirement gaps, and create action items — maintaining quality while saving 60% of processing time.
Duy Tran10 min
AIImpact Mapping is a visual planning technique that helps BA connect features to business goals instead of building features for the sake of features. This article shows how to create an Impact Map for AI projects and use it to prioritize backlog items with clear rationale.
Duy Tran10 min
AIMake-or-Buy is one of the most important decisions in Strategy Analysis. With AI, the question becomes even more complex: build a custom model, fine-tune a foundation model, or use an API? This article provides a framework to help BA analyze the options and make the right decision.
Duy Tran11 min
AIThe most common BA mistake is jumping straight to a solution before understanding the problem. Learn how to write problem statements around business outcomes, distinguish problem vs symptom vs solution, and apply the SCQ framework to frame things correctly from day one.
Duy Tran10 min
AIA clear breakdown of BA, Product Owner, Product Manager, and AI Engineer roles in a modern product team. Who writes acceptance criteria? Who decides the roadmap? Who's accountable when an AI feature goes wrong? A practical guide for BAs looking to position themselves correctly in the age of AI.
Duy Tran12 min
AIAnthropic launched Claude Opus 4.7 on April 16, 2026 — the latest flagship AI model with exceptional programming capabilities, 3x higher vision resolution, a new xhigh effort level, and leading agentic performance. A comprehensive review covering benchmarks, real-world feedback, pricing, and a migration guide from Opus 4.6.
Duy Tran20 min
AIA detailed guide to the complete NVIDIA DLI ecosystem for Generative AI and LLMs — from Diffusion Models, RAG Agents, and Agentic AI to Transformer NLP. Analysis of exam content, assessment difficulty, sample questions, exam tips, and a learning roadmap from beginner to professional.
Duy Tran30 min
AIAnthropic has published a 245-page System Card for Claude Mythos Preview — the most powerful AI model ever trained, but NOT released publicly due to its ability to autonomously find zero-days. A detailed analysis of its cyber capabilities, alignment, model welfare, and the remarkable stories from inside.
Duy Tran18 min
AIA comprehensive review of MiniMax — the Chinese AI startup with the world's most complete multimodal ecosystem. From M2.7 (text/code on par with Opus 4.6), Hailuo 2.3 (video), Speech 2.6, to Music 2.6. Analyzes models, products, API, pricing, compares with OpenAI, Google, and Anthropic, and includes a quick-start guide.
Duy Tran25 min
AIA comprehensive guide to becoming an AI Solution Architect — from technical foundations, end-to-end AI system design skills, cloud architecture, and MLOps, to stakeholder communication soft skills. Includes role comparisons, salary benchmarks, required certifications, and common career mistakes.
Duy Tran30 min
AIA week of surprising developments: Microsoft admits Copilot is "for entertainment only" in its terms of service, Japan commits $6.3 billion to Physical AI targeting a 30% global market share, Cognichip raises $60M to let AI design chips, and Anthropic accidentally takes down 8,100 GitHub repositories.
Duy Tran10 min
AIA particularly eventful week in AI: Microsoft simultaneously launches 3 MAI foundational models (speech, voice, image); H Company's Holo3 achieves 78.85% SoTA on the OSWorld computer use benchmark; Anthropic spends $400M acquiring biotech startup Coefficient Bio and locks OpenClaw out of Claude Code subscription plans.
Duy Tran10 min
AIGoogle DeepMind launches Gemma 4 — a family of open models ranking
Duy Tran15 min
AIOllama 0.19 integrates Apple's MLX backend — delivering 93% faster decode speed and 57% faster prefill on M5. A comprehensive technical analysis of unified memory architecture, real-world benchmarks across M1 to M5, and a step-by-step setup guide to maximize your Apple Silicon's potential.
Duy Tran18 min
AI & Machine LearningAn in-depth analysis of AI applications in healthcare — from CNN medical imaging that surpasses specialist physicians, NLP for EHR analysis, drug discovery compressed from 12 years to months, to personalized genomics treatment. Includes real case studies, technical challenges, ethical issues, and a deployment roadmap for Vietnam.
Duy Tran35 min
ProgrammingDetailed analysis of TypeScript source code extracted from the npm bundle of Claude Code v2.1.89 --- revealing the Buddy virtual pet system with rarity RPG released on April 1, 2026, UltraPlan multi-agent architecture, Bridge remote session system, anti-canary obfuscation and dozens of hidden features that have not been documented.
Duy Tran25 min
BackendDetailed instructions for building a complete AI Agent Platform with xClaw — TypeScript monorepo supporting Multi-LLM, RAG Pipeline, Workflow Engine, 13 Domain Packs, Multi-tenant RBAC, MCP Protocol and 8 Chat Channels. From Dual-Database architecture to deploying Docker production.
Duy Tran45 min
DevOpsInstructions for installing KVM on Ubuntu and managing VM via Cockpit Web UI. Configure network bridge, NAT virtual network, storage pool for 2 node homelab.
Duy Tran27 min
DevOpsLearn Circuit Breaker Pattern in Spring Boot with Resilience4j - from operating principles, detailed configuration, practical examples to best practices. A complete guide to help you build resilient microservices systems, prevent cascading failures and automatically recover when services encounter problems.
Duy Tran35 min
DevOpsDetailed instructions for upgrading PostgreSQL 17.6 to 18.1 for production environments with minimal downtime. Includes pg_upgrade, logical replication, rollback plan, and updated best practices for PostgreSQL 18 with Async I/O, Statistics Preservation, and new pg_upgrade --swap mode.
Duy Tran15 min
SecurityThis article analyzes in detail the data decentralization architecture for hierarchically structured systems — from governments, to multinational corporations, to retail chains with thousands of branches.
Duy Tran37 min
DatabaseHow to search on encrypted data? This article presents 3 practical approaches and implementations with Spring Boot + PostgreSQL to protect 100,000+ patient records.
Duy Tran15 min
DevOpsThis article will help you master PostgreSQL backup and restore methods from basic to advanced, along with practical best practices.
Duy Tran13 min
DevOpsDetailed instructions for installing Harbor - private Docker registry on Ubuntu 24.04, including HTTPS, security, backup and best practices.
Duy Tran10 min
DevOpsShare experience in deploying and open-source fully automated PostgreSQL HA cluster solution
Duy Tran14 min
DevOpsDetailed instructions on how to install KVM (Kernel-based Virtual Machine) on Ubuntu 24.04 LTS with Cockpit or Kimchi web management interface. Learn how to set up a complete virtualization environment, configure a network bridge, and create your first virtual machine with ease.
Duy Tran9 min
LinuxOpenVPN is the solution source code VPN solution Open, highly secure, commonly used to access us internal system remote (dev, staging, production) through encrypted channel. This article ...
Duy Tran5 min