Literacy
Literacy covers how a language model produces the next token, what a context window is, how temperature and system instructions change behaviour, and why a fluent paragraph can still be wrong. It also covers cost and latency as design constraints, not as footnotes. A layer is closed when the participant can brief a task in writing, predict a likely failure, and check an answer in five minutes using a source they brought.
Typical errors at this layer are treating the model as a search engine, pasting confidential text into a consumer chat, and accepting the first fluent draft. We spend time on those errors in Foundations because they are cheap to fix here and expensive once a queue is connected.
Practice
Practice is the craft of turning a job into a repeatable prompt or small pipeline: decompose the task, attach reference material, lock variables, and keep a twenty-case test set. Closed Practice means a colleague can run the template and get a score that matches the author’s score within one band. The test set is part of the artefact. Without it, a prompt is a one-off.
Teams often skip the test set and then argue about quality in the abstract. They also bury the instruction in chat history so nobody can find the current version. Prompt Systems and Working Data exist to make those habits visible and then replace them with a library and a log.
Systems
Systems starts when Practice is closed. It covers calling a model through an API, chaining steps with a check between them, retries, connecting a sheet or a form to a queue, and writing a log of every run. Closed Systems means a narrow process runs without the author sitting next to it, with a named person who can read the log.
The usual mistake is wiring an untested prompt into production traffic. A second mistake is building a chain with no human review point and no fallback when the model is slow or down. Automation and Capstone both require those review points to be drawn on the process map before any code is written.
Governance
Governance is the work of saying which data may enter a model, who consents, what is stored, who reads the log, and who is accountable for a bad output that reached a customer or a staff member. Closed Governance on our rubric is a filled risk register for one use case plus an acceptable-use note that staff can actually read.
The course does not issue legal opinions and does not certify a firm against a regulatory regime. It trains the people who will sit with counsel and with IT, so those conversations start from a shared description of the system rather than from a slide of aspirations.