Plan the Hirst painting project and review the plan documents

Add the Business Case (BC-001), Stakeholder Analysis (SA-001), Project Plan
(PP-001) and two milestones: MIL-001 Colour Palette and MIL-002 Spot Painting.
Record their reviews as RC-001 to RC-004 (all Go, self-review accepted by S01).

The PO language is English and the domain is IT. The milestones and their 13
tasks are synced as Gitea milestones 68 and 69 and issues #1 to #13.
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# Project Plan: Hirst Painting
## Metadata
| Key | Value |
| --- | --- |
| ID | PP-001 |
| CrossReference | [BC-001], [SA-001], [MIL-001], [MIL-002] |
| Language | en |
| Domain | it |
## Version History
| Date | Status | Author | Reviewer | Change | Commit |
| --- | --- | --- | --- | --- | --- |
| 2026-10-07 | Accepted | Jens Tirsvad Nielsen | S01 | Initial version | pending |
---
## Purpose
This plan schedules the two phases of the Hirst painting project, the colour
palette and the spot painting, inside the one-week limit that [BC-001] sets
(2026-10-07 to 2026-10-14). Each phase is a gateway with its own milestone
document, and each gateway ends with a Go/No-Go decision by S01.
## Planning Assumptions
- Week 1 starts 2026-10-07; the plan ends by 2026-10-14, per the Business Case assumption confirmed by S01.
- The baseline documents ([BC-001], [SA-001] and their review records) are finished on 2026-10-07, before the first phase starts.
- Phase length: two to five days, because the work is one small script. The palette phase is shorter because it is the smaller of the two.
- S01 owns both phases and takes both Go/No-Go decisions; S01 is the only stakeholder in [SA-001], so communication follows the review gates in that document.
- No user stories exist: the program has no user interaction beyond the exit click, so the Stories column is empty.
## Gateway Schedule
| Gateway | Document | Window | Decision date | Owner | Stories | Main deliverable | Milestone |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Colour palette | [MIL-001] | 2026-10-07 to 2026-10-09 | 2026-10-09 | S01 | none | Palette function that returns the reference image's colours without white shades | [MIL-001 milestone] |
| Spot painting | [MIL-002] | 2026-10-10 to 2026-10-14 | 2026-10-14 | S01 | none | Program that draws the 10 by 10 painting and meets SC1 to SC7 of [BC-001] | [MIL-002 milestone] |
```plantuml
@startgantt
Project starts 2026-10-07
[Colour palette] starts 2026-10-07 and ends 2026-10-09
[Colour palette Go/No-Go] happens 2026-10-09
[Spot painting] starts 2026-10-10 and ends 2026-10-14
[Spot painting Go/No-Go] happens 2026-10-14
@endgantt
```
## Scope Coverage
| Business Case scope item | Gateway |
| --- | --- |
| One Python program using `turtle`, `random` and `colorgram` | [MIL-001] (`colorgram` part), [MIL-002] (`turtle` and `random` part) |
| Palette extracted from one reference image, white shades removed | [MIL-001] |
| Drawing the 10 by 10 dot grid: size, spacing, row change, heading | [MIL-002] |
| Screen handling: `exitonclick`, hidden turtle, pen up, drawing speed | [MIL-002] |
| Framework documents and review records for the plan-first workflow | Finished before the first gateway ([BC-001], [SA-001], this plan, [MIL-001], [MIL-002] and their reviews); the review of each phase's code is a task in that phase |
## Dependencies
```
Baseline documents → [MIL-001] Colour palette → [MIL-002] Spot painting
```
[MIL-002] needs the palette function from [MIL-001]. A No-Go on [MIL-001] moves
the start of [MIL-002] by the days needed to rework and re-review; the
one-week limit then has no slack, so S01 decides whether to extend it.
## Plan Risks
| Risk | Impact | Mitigation |
| --- | --- | --- |
| The reference image is not supplied before the palette phase starts | [MIL-001] cannot start its extraction task; the window of two to three days is lost | The tasks that do not need the image (toolchain check, white filter and its tests) come first; S01 decides on another image if this one stays unavailable |
| A No-Go on the palette phase | [MIL-002] starts late and the one-week limit is missed | The palette phase is the smaller one and ends 2026-10-09, leaving five days for the painting phase |
| Review effort is large compared with the code | Time goes to documents instead of the program | Two phases, plain tasks, no use cases or design artifacts, as set out in [BC-001] |
| The Project Plan has no quality checklist | The plan is accepted on S01's judgement alone | S01 checks the plan against the one-week limit of [BC-001] and the Go/No-Go criteria of both milestones |
## Open Issues
- **Reference image:** its location is still unknown. S01 supplies it before task 4 of [MIL-001].
- **Project Plan review:** the Project Plan has no quality checklist yet, so it is `Accepted` when S01 says so in chat (done on 2026-10-07); no review record is written for it.
- **Milestone links:** `sync-project.sh --apply` ran on 2026-10-07 and created the two Milestones and issues #1 to #13 on the git host; the Milestone column links to them.
---
[BC-001]: ./business-case.md
[SA-001]: ./stakeholder-analysis.md
[MIL-001]: ./milestones/mil-001-palette.md
[MIL-002]: ./milestones/mil-002-painting.md
[MIL-001 milestone]: https://git.tirsystem.com/Tirsvad-Udemy-100-days-of-code/018-hirst-painting/milestone/68
[MIL-002 milestone]: https://git.tirsystem.com/Tirsvad-Udemy-100-days-of-code/018-hirst-painting/milestone/69