Feed - Martin Fowler

Additional explanatory material for the Deepseek Overview 🔗

A couple of months ago, my colleague Shayan Mohanty published a technical overview of the series of papers describing the deepseek AI mode [...]

Guiding an LLM for Robust Java ByteBuffer Code 🔗

AI editors like Cursor can generate code with remarkable speed using LLMs, handling boilerplate and providing functional snippets for various [...]

Updating yesterday's post on social media engagement 🔗

Some people asked about how many people clicked through the links on these social media posts. I've added some more to the article, partly to [...]

Social Media Engagement in Early 2025 🔗

A few years ago, whenever I published a new article here, I would just announce it on Twitter, but since the Muskover its importance has d [...]

I've been kidnapped by Robert Caro 🔗

I've always enjoyed reading, and for most of my life I've particularly enjoyed reading history. I've head many great things about Robert C [...]

The role of developer skills in agentic coding 🔗

As agentic coding assistants get more capable, Birgitta Böckeler is trying them to change existing codebases. This has led to some impres [...]

Commenting on removing "X" on US passports 🔗

The new US administration has decided to eliminate the “X” option for gender/sex on passports. I have several non-binary friends, and I don’t see why [...]

GenAI Patterns: Fine Tuning 🔗

While RAG is the most common way to focus a foundation model on material outside its training set, Bharani Subramaniam and I now finish ou [...]

GenAI Patterns: Guardrails and RAG overview 🔗

Gen AI systems are gullible, and can easily be tricked into responding in ways that are contrary to an enterprise's policies or leak confi [...]

What role does LLM reasoning play for software tasks? 🔗

Recent LLM models have provided “reasoning” capabilities. Birgitta Böckeler asks what role these play with coding tasks. She doesn't have [...]

GenAI Patterns: Reranker 🔗

LLMs struggle with large amounts of context. Bharani Subramaniam and I explain how to mitigate this common RAG problem with a Reranker whi [...]

GenAI Patterns: Query Rewriting 🔗

Users often have difficulty writing the most effective queries. Bharani Subramaniam and I explain Query Rewriting: getting an LLM to formu [...]

The DeepSeek Series: A Technical Overview 🔗

The appearance of DeepSeek Large-Language Models has caused a lot of discussion and angst since their latest versions appeared at the beginning [...]

GenAI Patterns: RAG Limitations and Hybrid Retriever 🔗

Today Bharani Subramaniam and I outline four limitations to the simple RAG from yesterday, and the pattern that addresses the first of the [...]

Panel at goto Copenhagen: "Where is SW development Going 🔗

was on a panel at goto Copenhagen last September with Holly Cummings, Trisha Gee, Dave Farley, and Daniel Terhorst-North. We discussed the [...]

GenAI Patterns: Retrieval Augmented Generation (RAG) 🔗

A pre-trained GenAI model lacks recent and specific information about a domain. Bharani Subramaniam and I explain how Retrieval Augmented [...]

Bliki: Forest And Desert 🔗

The Forest and the Desert is a metaphor for thinking about software development processes, developed by Beth Andres-Beck and hir father Kent Beck. [...]

Embeddings in GenAI Products 🔗

GenAI systems, like many modern AI approaches, have to handle vast quantities of data, and find similarities between elements in an image or [...]

Emerging Patterns in Building GenAI Products 🔗

Everyone is fascinated about using generative AI these days, and my colleagues are no exception. Some of them have had the opportunity to put [...]

Podcast with Luca Rossi 🔗

Luca Rossi hosts a podcast (and newsletter) called Refactoring, so it's obvious that we have some interests in common. The tile comes from me [...]

Codemods in other languages 🔗

Juntao Qiu finishes his description of codemods by looking at some other approaches outside the JavaScript world such as JavaParser and Op [...]

Fixing Common Pitfalls of Codemods 🔗

So far the codemods that Juntao Qiu has described are fascinating, but rather straightforward. Real codebases offer more challenges. In th [...]

My favorite musical discoveries of 2024 🔗

I've got into the habit of starting the New Year by sharing six favorite albums I discovered during the last year. This years set includes [...]

A more complex codemod 🔗

Juntao Qiu moves onto a more complex example of a codemod, one that extracts a tooltip responsibility from a JSX component. This illustrat [...]

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Martin Fowler