NCEA Level 2 Digital Technologies study plan

Write, run, and debug at least six short programs that use variables, sequence, selection, and iteration, keeping each under 30 lines

Trace the execution of three supplied-style algorithms by hand, recording variable values at each step, then verify your trace by running the code

Convert three informal problem statements into pseudocode before coding, and annotate where each control structure appears

Set up a working development environment with a version control repository and commit each program with a descriptive message

Decompose two larger problems into functions or methods, each with a single clear responsibility, and document inputs and outputs

Implement input validation and error handling in at least three programs so invalid input produces a clear message rather than a crash

Choose appropriate data structures (list, dictionary, record) for three scenarios and justify each choice in one sentence

Write and run at least eight test cases, including boundary values, against your own code and record pass or fail results

Refactor one earlier program to remove duplicated code and improve naming, then compare readability before and after

Describe how a program running on a microcontroller differs from one on a general-purpose computer in memory, timing, and input handling

Write a short program that reads a sensor-style input, applies a threshold, and triggers an output, explaining each line

Explain the role of compilers and interpreters in turning source code into executable instructions, using one concrete example of each

Identify and label the components of a simple embedded system: input transducer, controller, output actuator, and power supply

Draw a circuit diagram for two input devices and two output devices connected to a microcontroller, showing correct pin assignments and current-limiting components

Convert between binary, decimal, and hexadecimal for at least ten values and explain why hexadecimal is used in hardware documentation

Explain the difference between digital and analog signals and describe how a sensor's analog reading is converted to a digital value

Build or simulate a microcontroller project that reads two inputs and controls two outputs according to a written specification

Write a test plan for the embedded project covering normal operation, boundary conditions, and one failure mode, then execute it

Describe the components of an information system (hardware, software, data, people, procedures) using your embedded project as the example

Compare local storage, cloud storage, and a database for three given scenarios, stating one advantage and one limitation of each

Model a small dataset in at least two related tables, identifying primary and foreign keys and explaining each relationship

Write queries or filters to retrieve, sort, and summarise data, and explain what each query returns

Identify three security risks to stored data and describe one control for each, such as access levels, encryption, or backups

Explain how data integrity, accuracy, and relevance affect the usefulness of information for a stated purpose

Describe the privacy and legal obligations that apply when storing personal information in a school or workplace system

Plan a short digital media outcome by writing a brief that states purpose, audience, and at least three technical and aesthetic requirements

Create and edit the media outcome using appropriate tools, applying at least three design principles such as contrast, alignment, and hierarchy

Prepare and optimise assets for the intended delivery format, explaining how file format and compression choices affect quality and size

Apply correct attribution and licensing to every asset used, recording source and licence for each

Complete two timed practice assessments mixing programming, embedded systems, information systems, and media questions, then mark them against the criteria

Review every error from the practice assessments and write a corrected explanation for each

Produce a one-page summary sheet per domain listing key terms, processes, and common pitfalls

Re-run your weakest practical task from weeks 2 to 7 and confirm the improvement against your earlier version