Category
Methodologies that respect your time: lightweight processes for small teams.
Evaluating a RAG system without metrics is pure guesswork. Ragas measures four core signals: faithfulness, answer relevancy, context precision and context recall, using an LLM as judge. TruLens, DeepEval and other frameworks cover similar ground. Wiring evaluation into CI from day one catches regressions in prompts, chunking or model choice before they reach production.
Carbon-aware computing runs flexible workloads when grid electricity emits less CO2, cutting emissions 10-30% without changing infrastructure. Grid carbon intensity varies up to 16x by hour and region; tools like Electricity Maps, WattTime and the Carbon Aware SDK make that scheduling possible with real grid data.
Sigstore has become the standard signing layer for OCI artefacts. GHCR is the best-integrated registry; Harbor 2.5+ and Quay offer native support; AWS ECR pushes its own KMS scheme. Verification earns its keep at three points: the cluster admission controller, the GitOps layer, and the CI/CD pipeline. The public Rekor has rate limits that force self-hosting past a certain build volume.
SLOs and error budgets only work when the budget drives real decisions. A feature freeze that triggers on exhaustion, deploy velocity that adjusts to consumption. With two or three well-chosen SLIs, a clear freeze policy, and simple tools like Prometheus with Sloth, a team can sustainably balance velocity and reliability in production.
Blameless post-mortems are easy to proclaim but hard to execute well. Without genuine blame-free culture, a factual timeline, honest contributor analysis, and action items with a clear owner and deadline, the exercise degenerates into empty ritual that does nothing to prevent the same incidents from recurring.
An Internal Developer Platform (IDP) centralises service discovery, provisioning and observability in a single portal, so developers stop depending on stale wikis and Slack channels. Backstage, Port and Cortex dominate the market: Backstage is open source with a dedicated team, Port is fast low-code SaaS, and Cortex focuses on scorecards for measurable technical discipline based on team size.
The SaaS market is consolidating after years of fragmentation: private equity acquisitions, licence changes, and double-digit price hikes have shifted negotiating power toward vendors. A practical framework to audit your exposure, build credible migration pressure, and design exit strategies that work when you actually need them.
Signing images and artifacts with Sigstore has stopped being a rare experiment: projects like Kubernetes already use it. The keyless model in cosign, Fulcio, and Rekor removes private-key management, but it only protects you if deployment verifies who signed, not just whether a signature exists.
Flux CD and ArgoCD are the two CNCF-graduated GitOps tools for deploying to Kubernetes with Git as the source of truth. ArgoCD offers a centralised visual UI that manages several clusters from one instance, while Flux is a set of Kubernetes-native controllers with built-in image automation. Neither choice is wrong: it depends on your team and use case.
ArgoCD has established GitOps as the standard deployment practice for Kubernetes: the Git repository is the single source of truth for the desired state, and the agent continuously reconciles the cluster. This guide covers the four formal GitOps principles, sync policies, common production mistakes, and a comparison with Flux.
Platform engineering formalizes the internal product development teams need. An Internal Developer Platform (IDP) centralises deployment, observability and self-service behind a unified interface so product teams deliver value without becoming infrastructure experts. Investment pays off from around 30 to 50 developers.
SLSA v1.0, published in April 2023, defines four maturity levels for securing the software supply chain, from basic provenance to isolated builds. Level 3 requires every build to run in an ephemeral, stateless environment, eliminating attacks like build contamination and insider threat, and is achievable with GitHub Actions and OIDC signing via Sigstore.
FinOps turns cloud cost into an engineering discipline rather than a finance problem. The Inform-Optimize-Operate framework delivers per-team visibility, continuous waste reduction, and cost SLOs. Rigorous tagging and open-source tools like Kubecost or Infracost let teams regain control of the bill without slowing delivery.
Google's SRE book (2016) is canonical reading, but it is written for thousands of engineers and in-house datacenters: applying it literally on a small team creates friction. Five principles do travel (SLOs, error budgets, blameless postmortems, toil management, humane on-call); what does not scale is Google's infrastructure and dedicated roles.
With 30 or more microservices, end-to-end tests become slow, fragile and impractical. Pact implements consumer-driven contract testing: the consumer defines what it expects, the provider verifies it in its own CI pipeline, with no shared environment needed. The result is integration proof in seconds, not minutes.
To write Prometheus alerts that won't get ignored, alert on customer-observable symptoms (latency, error rate, saturation) instead of internal causes like CPU or memory, define SLOs with multi-window burn rate to scale severity, add a watchdog alert that confirms the system is still alive, and review the signal-to-noise ratio every quarter.
The MoSCoW method organises project requirements into 4 categories: Must have (essential), Should have (important), Could have (desirable), and Won't have (out of scope). Its purpose is to force an explicit priority conversation before committing team resources and time.
The Kano model classifies product features into three types: basics (what customers take for granted), performance (where more investment yields more satisfaction), and emotional delighters (unexpected extras that build loyalty). Knowing which category each feature belongs to sharpens every roadmap decision.
Design thinking is a user-centred problem-solving methodology structured around five iterative phases: empathise, define, ideate, prototype, and test. Following the Design Council Double Diamond model, it first identifies the right problem, then designs the right solution. Applicable to digital products, internal processes, and business models alike.
The OKR (Objectives and Key Results) methodology is a goal-management system that aligns the entire organisation, from the CEO to every team, around ambitious, measurable goals. Each qualitative objective pairs with quantifiable key results, reviewed every quarter to keep focus without the rigidity of an annual plan.
Agile methodologies (Scrum, Kanban, Extreme Programming) replace rigid upfront planning with short, iterative cycles: each sprint delivers working software, brings in real customer feedback, and lets teams correct course before a mistake becomes expensive. Born from the 2001 Agile Manifesto, they are now applied well beyond software, in marketing, design, and research too.
SMART, OKR, and Balanced Scorecard are the three reference methodologies for defining strategic objectives: SMART validates that each objective is specific and measurable, OKR vertically aligns organisational ambition through quarterly reviews, and Balanced Scorecard connects financial indicators with processes, customers, and learning across four complementary perspectives.
