Preston Lee's Blog

Category: Uncategorized

  • CQL Studio v1 Download Now Available

    If you work with Clinical Quality Language (CQL) and FHIR, a preintegrated bundle of CQL Studio for local use is now publicly available. https://cqlstudio.com CQL Studio is an integrated suite for authoring, executing, and publishing standards-based FHIR and CQL artifacts, as well as testing CQL engine implementations. By deploying locally or in your own protected…

  • CQL Studio: Filling the Gap in CQL Development Tools

    CQL Studio: Filling the Gap in CQL Development Tools

    CQL is becoming the standard language for expressing clinical logic across multiple healthcare domains: Despite CQL’s growing importance, developers have been forced to use basic text editors and command-line tools. My aim for CQL Studio is to become the de facto open source development suite for all CQL-based artifact development. 😃 Vision for a Comprehensive…

  • GovCIO Quotes

    I was pleasantly surprised to hear that GovCIO quoted one of my recent presentations in a short article on H7 FHIR Foundry: https://govciomedia.com/hl7s-fhir-foundry-speeds-up-health-data-standards-adoption/ With the Centers for Medicare and Medicaid Services (CMS) pushing for the adoption of FHIR APIs to streamline healthcare data exchange and support value-based care, HL7 and the FHIR Foundry initiative are…

  • KNARTwork 2022 Rerelease

    The HL7 Knowledge Artifact specification has been an experiment in portable clinical decision support (CDS). While unlikely to see production adoption due to equivalent concepts now in FHIR, it is nevertheless useful to see a standards-based representation of clinical knowledge in a working UI. I am updating the 2017 release of the KNARTwork Community Knowledge…

  • space_elevator ActionCable Client for Ruby

    I have an interactive command-line daemon (in Ruby) that I needed to receive push events via WebSockets from an ActionCable-enabled Rails application. I eventually succeeded, but doing so required diving into the weeds of ActionCable’s wire protocol since I didn’t want to rewrite my application in JavaScript solely to leverage the official client code. Because I’m such a nice guy,…

  • BitTorious Trials

    New in BitTorious v4! BitTorious v4 has been released, and has received a comprehensive internal upgrade to Rails 5 and PostgreSQL 9.5. Also, all official releases from v4 forward will be built as portable Docker containers and distributed via Docker Hub. Due to attempted abuses of the evaluation environment, we’ve unfortunately had to discontinue the…

  • How To Custom Brand The OpenStack “Horizon” Dashboard

    I’m deploying OpenStack “Essex” on Ubuntu Server 12.04, and have the openstack-dashboard package installed to provide the web-based “Horizon” GUI component newly added for the Essex release. Canonical also provides an openstack-dashboard-ubuntu-theme package that brands the Python-based Django GUI. Despite that the last major Canonical-maintained packages based on the OpenStack “Diablo” release in Ubuntu 11.10…

  • OpenStack Nova Essex MySQL Database Schema Diagram and SQL

    I’m in the process of setting up an OpenStack Essex installation on a small cluster of Ubuntu 12.04 servers using the Canonical-supplied and supported packages. I innocently and unfortunately ended up with a state corruption issue causing nova-compute to crash on startup, and found it necessary to dive into the schema as a troubleshooting aid.…

  • Hacking Your Own Genome

    Many thanks to everyone that participated in my Hacking Your Own Genome session at today’s Desert Code Camp 2011.2 event in Chandler, Arizona! I’m very passionate about the topic area, and hope the session was both entertaining and useful. Here are the presentation materials, source code for the “youandme” application, and a few other links…

  • Amazon Finally Adds Lending Library

    Late is better than never! (From the press release. Customer details here.) With an Amazon Prime membership, Kindle owners can now choose from thousands of books to borrow for free – including over 100 current and former New York Times Bestsellers – as frequently as a book a month, with no due dates Books can…