Articles on AI governance, cybersecurity and systems architecture.
On 12 April 2016 Let's Encrypt reached general availability. Technical notes on ACME, domain validation, 90-day certificates, and the constraint that automatic renewal places on operations.
Read moreA technical read of the Medical Imaging Interaction Toolkit at release 2016.03: the ITK + VTK stack, DataStorage as the shared data model, BlueBerry sitting on the CTK Plugin Framework and CppMicroServices, and the limits that remain on the regulatory side.
Read moreKeycloak 1.9 speaks OAuth 2.0, OpenID Connect and SAML 2.0 in a single Apache 2.0 server. Technical notes on SSO, identity brokering, LDAP federation and the limits of delegation.
Read moreThe technical rules for Italy's Electronic Health Record set out a federated architecture built on signed CDA R2 documents and IHE XDS.b/XCA profiles, with INI as an interoperability gateway between regional records.
Read moreRFC 7519 was published in May 2015 and fixes the JSON Web Token format. Technical notes on the structure, the registered claims, and the two classes of bug Tim McLean disclosed in March.
Read moreOn 26 March 2015 Facebook published the iOS version of React Native on GitHub. Technical notes on native rendering, the asynchronous bridge, and the limits known so far.
Read moreWith version 5.0 (31 March 2015) the 6to5 transpiler, renamed Babel, opens a plugin API and adopts the TC39 process stages. Technical notes on the AST architecture and the chosen defaults.
Read moreA stable Reference Model underneath, clinician-governed archetypes in ADL on top. How openEHR keeps the software model separate from clinical concepts, and what that costs and yields for interoperability and maintenance.
Read moreGraylog 1.0, released 17 February 2015, keeps the search index (Elasticsearch) separate from configuration metadata (MongoDB). Notes on GELF, syslog ingestion, streams, and extractor ordering.
Read moreOn 29 October 2014 Facebook released osquery, which exposes a system's processes, sockets and files as queryable SQL tables. Technical notes on its architecture and limits.
Read moreFHIR DSTU 1 (v0.0.82) exposes clinical entities as REST resources in XML or JSON. Reading notes on its design choices against HL7 v2 and CDA R2.
Read moreHow to read a personal radiofrequency electromagnetic field sensor from a Chrome app over a USB serial port, and why V/m readings only become legible next to the thresholds of ICNIRP 1998 and the Italian DPCM of 8 July 2003.
Read moreOn a production line that uses machine learning to catch defects, the result depends more on the labels and on optical stability than on the algorithm. Technical notes on features, models and operational constraints.
Read moreOn 19 February 2014 webpack reached version 1.0. Its graph, loaders and code splitting address problems left open by browserify and RequireJS.
Read moreHugo 0.9.0 builds a static site from Markdown with no external runtime: a single Go binary, the Blackfriday engine, html/template, indexes for taxonomies. Technical notes from a hands-on trial.
Read moreTechnical notes on an open-source IaaS stack — OpenStack, OpenNebula, Eucalyptus — for the requirements of a tourism and cultural-heritage platform.
Read moreMISP grew out of Belgium's CyDefSIG in 2013 and is maintained by CIRCL: an event-and-attribute data model, export to Snort/Suricata and OpenIOC, and synchronisation between instances. Notes on the emerging STIX and TAXII formats and on the limits of trust between organisations.
Read moreThe Arduino YÚN pairs an ATmega32U4 microcontroller with an Atheros AR9331 SoC running OpenWrt. Technical notes on the serial bridge between the two chips and what changes for anyone prototyping connected objects.
Read moreDocker, open-sourced by dotCloud in March 2013, puts a uniform interface over cgroups, namespaces and a union filesystem already present in the Linux kernel. What changes is not the kernel but the distribution format.
Read moreA technical reading of DICOM in 2013: the object model, SOP Classes, DIMSE services, transfer syntaxes, and the move under way towards the REST services WADO-RS, QIDO-RS and STOW-RS. What you build with the Open Source toolkits.
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