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# Essential Terms — C01

The Hamilton and Alexandra College · Year 12 · 2026

A glossary of every term you need to recognise and use correctly across C01. Click a term to expand its definition. If you cannot define a term in your own words, you cannot use it with confidence when it counts.

```mermaid
flowchart TD
    R["C01 vocabulary<br/>21 terms"]
    R --> G0["Problem-solving methodology<br/>5 terms"]
    R --> G1["Design brief<br/>3 terms"]
    R --> G2["Project management<br/>11 terms"]
    R --> G3["Gantt chart<br/>2 terms"]
```

*Where the C01 vocabulary sits, and how much of it is in each group — the 4 sections below follow the same order. Revise the heavy groups first.*

---

## Problem-solving methodology

>| ### Analysis stage
>| The stage of the problem-solving methodology where solution requirements, constraints and scope are determined

>| ### Design stage
>| The stage of the problem-solving methodology where the function and appearance of a solution are planned, and evaluation criteria created

>| ### Development stage
>| The stage of the problem-solving methodology where the solution is coded, validated, tested and documented

>| ### Evaluation stage
>| The stage of the problem-solving methodology where the completed solution is evaluated against the evaluation criteria and the project plan is assessed

>| ### Problem-solving methodology (PSM)
>| An approach that develops the stages involved in solving a problem

---

## Design brief

>| ### Design brief
>| A document that identifies a problem, need or opportunity and describes the proposed software solution, its users, the programming language to be used, and how it is feasible and original

>| ### Feasibility
>| An assessment of whether a proposed solution is practical and achievable, commonly evaluated using the T.E.L.O.S. framework (Technical, Economic, Legal, Operational, Scheduling)

>| ### T.E.L.O.S.
>| A framework for assessing feasibility across five dimensions: Technical (can it be built?), Economic (can it be afforded?), Legal (is it lawful?), Operational (will it be used?), and Scheduling (can it be completed in time?)

---

## Project management

>| ### Concepts (project management)
>| The milestones and dependencies within a project timeline

>| ### Concurrently
>| When a task is carried out at the same time as another task

>| ### Critical path
>| The shortest possible time in which a project can be completed

>| ### Dependency
>| A relationship between two tasks in a project plan where one task cannot begin until another has been completed

>| ### Predecessor
>| A task that must be completed before another one can be performed

>| ### Processes (project management)
>| Task identification, sequencing and allocation of time and resources within a project timeline

>| ### Project management
>| A method of recording the progress of a project and managing resources to operate within time, resource and cost availability

>| ### Slack time
>| The length of time that a task can run overtime before affecting other tasks

>| ### Successor
>| A task that must be completed after another task

>| ### Work breakdown structure (WBS)
>| An often hierarchical breakdown of a project that organises the work to be done into manageable sections, often displayed as a visual outline or map

>| ### Monitoring
>| The ongoing process of tracking a project's progress against the plan, identifying delays or changes, and documenting adjustments made

---

## Gantt chart

>| ### Gantt chart
>| A type of bar chart or graphic timeline that shows the progress of a project by placing tasks on a timeline, often with comments or annotations

>| ### Milestone
>| A significant point or event in a project timeline that marks the completion of a key deliverable or the start of a new phase

---

## See also

- [C01 home page](/sd/C01/C01-home) — everything else for this criterion
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