Easy Learn
A complete, beginner-friendly guide to security compliance — what it means, why it exists, how compliance programs are built and operated inside real organizations, and how it connects to everyday engineering work like logging, access control, and cloud deployment. Opens with the school-rulebook analogy (rules for safety and fairness, plus…
A complete, beginner-to-production guide to API integration middleware — the software layer that sits between applications, APIs, and services and handles translation, routing, orchestration, security, and resilience so that individual systems don’t each have to solve these problems independently. Starts with a plain-English business-departments analogy (Sales, Warehouse, Billing all speaking…
A complete, beginner-to-production guide to every major API versioning strategy, with diagrams, Java code, real company examples, and interview-ready explanations. Opens with the toy-robot analogy that makes the whole discipline click, then traces the history from 1990s SOAP/WSDL through the REST boom, the mobile-and-public-API explosion that forced formal deprecation timelines…
A complete beginner-to-production guide to asymmetric (public-key) encryption: the math intuition, the algorithms (RSA, Diffie-Hellman, ECC, Ed25519, ElGamal), how HTTPS, digital signatures, JWTs and mTLS actually work, and how real systems manage keys at scale. Covers history from Diffie-Hellman and RSA through TLS 1.3, the key-distribution problem, public vs. private…
A ground-up, beginner-to-production guide to API key management: what API keys are and where they came from historically as the programmable web took off in the mid-2000s, the problems they solve for machine-to-machine traffic (identification, rate limiting, revocation, accountability, billing and metering), core vocabulary (API key, hash, scope, rate limit,…
A complete, beginner-to-production guide to at-least-once delivery: what it means (a message will arrive one or more times but never zero times), its history from IBM MQSeries and MSMQ through SQS, Kafka, Pub/Sub and Azure Service Bus, why networks and the Two Generals’ Problem make perfect delivery impossible, the three…
A practical, no-fluff walkthrough of which certifications actually move the needle for Solution, Enterprise, Cloud, and Technical Architect roles across Indian IT — and which ones are mostly resume decoration. Opens with the shift from scar-tissue architects of the early 2000s (senior developers trusted with the whole system diagram after…
A complete, beginner-to-production walkthrough of backward-compatible API design — the discipline of evolving an API without ever disconnecting the phone number that existing callers already dialled. Opens with the postal-address analogy (renovate the house all you like, just never invalidate the address) and traces sixty years of software history that…
A complete, beginner-to-production guide to one of the most consequential and recurring decisions a software architect makes: when to build a capability in-house, and when to buy it from a vendor. Opens with the restaurant analogy that motivates the whole shift – buy the commodity ingredients, cook only what makes…
A complete, beginner-friendly guide to the “A” in ACID: what atomicity means, its origins in Jim Gray’s 1970s-1980s transaction work and the ACID acronym coined by Reuter and Härder, the multi-step / concurrent / crash-recovery problems it solves, the core vocabulary (transaction, commit, rollback, ACID, statement- vs transaction-level atomicity), the…