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An example of a software design pattern for European option pricing using UML diagrams

Design Patterns were first introduced in the seminal book Design Patterns: Elements of Reusable Object-Oriented Software by Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides, who are collectively known as the "Gang of Four" [Gamma et al. (1994)]. This book forms the foundation of Object-Oriented design theory and practice. A Design Pattern is a general, reusable solution to a commonly occurring problem in software design. These patterns are based on the philosophy of finding standard solutions to common problems in software engineering challenges.

Just as there are standard designs for car engines, like the four-stroke engine, design patterns serve a similar purpose in software. Each pattern provides a tried-and-true solution to a specific problem. Some of these patterns focus on object creation, others on structuring systems of objects, and still others on how objects should communicate.

  • in Events
  • 6 min read

Hacktoberfest 2024: Bring your own code

The Hacktoberfest Logo

Hacktoberfest is a month-long annual event that encourages people to contribute to open source throughout October. The motivation of Hacktoberfest is to celebrate all things open source, especially the people that make open source so special.

This year the central RSE team at Imperial planned two in-person events during Hacktoberfest on the 1st and the 23rd of October. The events were open to anybody interested in participating in open source software, either coding or with non-code contributions. Everybody was welcome to join the events and bring their own code along for a discussion with the central RSE team members. This included low code and non-code contributions - a big chunk of what surrounds good open source software has nothing to do with code!

  • in Events
  • 6 min read

RSECon24: Growing a community, building a career

The RSECon24 Logo

It's now a little over 12 years since the term "Research Software Engineering" (RSE) was first coined at an event held in Oxford, UK. Seeing around 400 people gather at the Frederick Douglass Centre at Newcastle University for this year's RSE Conference – RSECon24 – was proof of the amazing growth that we've seen within the community and the wide range of opportunities that now exist to undertake software development work within the research domain. We know that career opportunities within the research technical professionals space are also expanding rapidly but there's still a way to go in recognising and rewarding the people who contribute vital technical skills to support and undertake research. This year's conference offered a wide range of talks, workshops and Birds of a Feather (BoF) sessions, alongside a great opportunity to network with other RSEs and researchers and catch up with friends both old and new. This growth of the community, opportunities for the future and how we can help to support and grow careers, as well as making our community more diverse and inclusive, were some of the topics covered at this year's conference. Several members of the Imperial College London Research Computing Service were in attendance at the conference, as were other RSEs and researchers from departments across the institution. In this blog post, we talk about our experiences, highlights and key takeaways from this year's conference.

  • in Events
  • 7 min read

Highlights from PyData London 2024

The central RSE team at Imperial recently attended the PyData London 2024, the 10th Anniversary edition. It was an in-person event that brought together data scientists, data engineers, and developers from around the world. This event served as a platform for sharing ideas and learning from one another. In this blog post, we share our highlights from the event, showcasing why it's essential for anyone involved in data science to stay updated and connected with the global community.

With Artificial Intelligence, in particular Large Language Models (LLMs) being a significant topic in the wider world, it was naturally a very significant topic that was seen across the whole conference. Most talks involved some kind of data processing or Machine Learning workflow. Scratching beneath the surface, we found some additional highlights.

  • in Events
  • 3 min read

Adopting a more rational use of Continuous Integration with GitHub Actions

In the Imperial RSE Team we make extensive use of continuous integration (CI) with GitHub Actions. We use CI to ensure our projects build and are correct across a range of scenarios (OS, python version, dependency version, etc.). Widely accepted wisdom is that it is best practice to catch issues early via frequent and thorough CI rather than to catch them later. This must however be set against the monetary and environment cost of running unnecessary compute workloads on every push to GitHub. In particular, the pricing structure of GitHub Actions means workloads run on Windows and macOS are more costly (certainly financially and presumably environmentally). This is particularly the case for private repositories for which Imperial has a fixed budget of minutes.

  • in Events
  • 4 min read

Creating impact in R from London

R Dev Day at Imperial College London

On Friday, April 26th, 2024, the central Research Software Engineering (RSE) team at Imperial College London hosted the R Dev Day at the Seminar and Learning Centre on the South Kensington Campus. This event, proposed by Dr. Heather Turner, aimed to foster collaboration among both new and experienced contributors interested in contributing to base R. I had the pleasure of co-organising this event alongside Dr. Turner and Dr. Diego Alonso Alvarez.

Python Development on M1 Macs

I recently received a new MacBook Pro for work. Great! The only catch is that Apple discontinued their Intel-based line of MacBook Pros in 2021 and their new line of laptops use the Apple silicon M-series coprocessors. This might not seem like a problem at first, but the Apple silicon processors use ARM-architecture instead of Intel's x86 architecture. For Python development, this is a potential problem because not all Python packages are installable for ARM architectures.

  • in Events
  • 5 min read

Highlights from RSECon22 from the central RSE team

Overview

This year, the annual conference organised by the Society of Research Software Engineering was back on as an in-person event for the first time since 2019. This meant that for many of the college’s central RSE team it was their first opportunity to meet up with RSEs from across the country and further afield. The College was well represented, with five delegates attending from the central team along with RSEs based in specific departments, research groups and teaching staff from the Graduate School.

Fine Tuning Django User Permissions

Read the full blog post in Dan Davies's Blog.

The RSE team is involved in an increasing number of software projects requiring a front-end web app. The main advantage to having a web app element for your research software is that users can interact with it via a web browser, without having to install anything to their local machine. There are of course downsides, including the need to deploy, host and maintain software somewhere suitable. However, there is a wide range of popular frameworks to make the whole process a lot smoother.