Choose one small problem, describe the result in a sentence, and decide what counts as done before you start coding. Then write a few input-and-output examples, use tools you already know, and build the smallest version that meets those examples. A clear finish line helps keep an appealing first idea from expanding into a much larger app.
Start with one problem and one core action
Make the first project useful for one person—often yourself—and one task. “A program that tracks a short reading list” is easier to plan than “a complete productivity platform.” Define what the user does and what the program gives back.
This follows the first step of the PCDIT problem-solving framework, which puts problem definition before implementation. The framework is described in Kurniawan, Jégourel, Lee, De Mari, and Poskitt’s 2021 paper, “Steps Before Syntax: Helping Novice Programmers Solve Problems using the PCDIT Framework”. The practical test is whether you can state the need and the program’s main action without listing a string of features.
Write a one-sentence project statement
Use this prompt: “This program lets [user] [do one action] using [input] and shows [result].” For example: “This program lets me enter three grocery prices and shows their total.” If the sentence needs several “ands,” consider narrowing the first version.
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Draw a boundary around version one
Write down the core action, then list tempting extras to postpone. A grocery total calculator might initially accept prices and display a sum; saving shopping histories, syncing across devices, and adding accounts can wait. Keep a feature only if it is necessary for the stated result.
Make the result concrete with examples
Before choosing an algorithm or writing syntax, write a few sample inputs and the exact results you expect. Include an ordinary case and at least one boundary or invalid case that matters to your project. In PCDIT, learners define the problem, develop concrete cases, and then design an algorithm; examples make the requirement testable rather than leaving it as a vague intention.
| Input | Expected result | What it checks |
|---|---|---|
| Prices: 2.50, 3.00, 1.25 | Total: 6.75 | An ordinary calculation |
| No prices entered | Show a helpful prompt instead of a total | Missing input |
| Price entered as “abc” | Ask for a valid number | Invalid input |
These examples are illustrative, not requirements for every project. Choose cases that match what your program actually accepts and promises. A score display, for instance, may need to check what happens at zero or at the maximum score; a list tracker may need to check what happens when the list is empty.
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Choose a project you can explain and test
There is no universally best first project. Compare possible ideas by whether you can state the problem clearly, show the expected result with a few examples, build a useful first version using concepts and tools you know, and define a finish condition you can check. Personal interest helps you choose a problem, but it does not require building a large system.
Prefer an idea where a successful result is visible: a calculated total, a displayed score, or a short list that updates when you add an item. If you cannot say what input to try or what output would count as correct, narrow the idea until you can.
Plan a few milestones, not the whole dream
Break the core action into small outcomes that you can run, see, or test. A simple sequence is:
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- Make the core work. Get the program to produce the central result, even if the interaction is plain.
- Add a basic way to use it. Accept the needed input and display the result.
- Run your examples. Compare actual behavior with each expected result and fix failures.
- Make it understandable to someone else. Add brief usage instructions and save or share the result if useful.
Name one likely blocker and an easier fallback. If a graphical interface is unfamiliar, a text prompt may be enough for the first version. If saving data is turning into a separate project, start with data entered during each run. A plan is a guide, not a promise: revise it when the work reveals what the task actually requires.
Keep the tools familiar
A first independent project is already a chance to practise problem-solving. Avoid making it a simultaneous course in a new language, framework, database, deployment stack, and editor. Choose a setup you can run, then learn an additional tool only when the core requirement calls for it.
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Use a repeatable build-and-test loop
PCDIT organizes novice problem-solving around defining the problem, developing cases, designing an algorithm, implementing it, and testing it. Its authors encourage iteration between phases: when a test fails, you may need to revise the code, the design, or your understanding of the requirement.
- Restate the problem and the examples the program must handle.
- Sketch the steps in plain language or pseudocode.
- Implement the smallest slice that produces a visible result.
- Run the examples and compare what happened with what you expected.
- When a case fails, adjust the plan or code, then run the examples again.
- Once the core requirement works, decide whether an extra belongs in a separate next version.
This is not a guarantee that every project will be completed. It is a way to find misunderstandings and oversized assumptions while they are still manageable.
Define “done” before adding extras
A useful finish condition is concrete: the core action works for the written examples, a new user can tell how to try it, and you can explain what you built. That connects completion to the original requirement rather than to an endless list of possible enhancements. Testing against cases is part of the PCDIT framework; the paper describes a satisfactory solution as one that fulfils its stated requirements and operates correctly on test cases.
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When the project meets that bar, add a short README or usage note. If you want to show the result, a screenshot or brief demo can help someone see what it does. These are practical ways to present a finished project, not prerequisites for the program to work.
A planning worksheet to fill in
- Who is this for? Usually you; name a friend or group only if it changes what the program needs to do.
- What one task should it help with? Choose a specific action, such as tracking a short list, calculating a total, or showing a simple score.
- One-sentence project: “This program lets [user] [do one action] using [input] and shows [result].”
- First-version boundary: State the core action and the extras you are postponing.
- Examples: Write two or three inputs and exact expected results, including a relevant edge case.
- Milestones: Core result; basic interaction; example tests and fixes; brief usage note or saved result.
- Risk and fallback: Identify one likely snag and a simpler way to preserve the core task.
- Definition of done: The core works for the examples, another person can tell how to try it, and you can explain the result.
What the evidence does—and does not—say
The PCDIT paper reports that 62% of student survey participants agreed or strongly agreed, after using the framework, that it helped them solve programming problems. That is a finding from the paper’s course survey, not a general estimate for beginners and not a project-completion rate. The framework offers a structured way to approach a problem; it does not establish that planning guarantees a finished project.
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