{
  "project": "Arc",
  "capturedAt": "2026-09-13",
  "environment": "Original Arc application, running locally in an isolated development environment with a real backend and synthetic records.",
  "sourceRevision": "43dfaf6e0a548f9e382a96744aad12a8611aad43",
  "reviewedRevision": "5549bf960754130c6dfe06b0b7bab1fb6a756d7f",
  "revisionNote": "The intervening changes concern delivery, CI, documentation and test timing. The reviewed product UI and domain implementation are equivalent.",
  "fictionalData": true,
  "datasets": {
    "portfolioExplorer": "Northstar Learning: two schools, three classes and 66 fictional learners. Named learner views show a six-person sample.",
    "originalBiCaptures": "A separate synthetic reporting cohort: three schools, five classes, five instructors, 66 learners, 25 completed lesson runs and 892 submission versions (800 submitted and 92 drafts). This normal-data-path cohort exists only in the isolated SQLite capture database.",
    "originalLearningCaptures": "Earlier synthetic learning/classroom accounts remain separate from the new BI cohort. They demonstrate themes, task work, feedback and instructor panels.",
    "comparison": "The 30-day BI view includes five eligible peers; the separately captured seven-day view does not. The native comparison gate and absolute values remain visible."
  },
  "boundaries": [
    "These are original application pixels with fictional records, not a recording of the portfolio explorer.",
    "Sample counts are not production analytics. The 3,000+ audience claim elsewhere refers to Arc and Browser Coder combined.",
    "Some learning-friction denominators count learner-run pairs rather than unique people.",
    "VRI includes a fixed 0.8 stability assumption. Operational indices are modeled signals, not causal educational outcomes or measured financial return.",
    "No production accounts, private learner records or credentials are included."
  ],
  "screens": [
    {
      "id": "bi-overview",
      "title": "Inventory and activity, in context",
      "description": "The admin overview separates population inventory, period activity and lesson-run states.",
      "portal": "Admin BI",
      "src": "/media/projects/arc/portals/bi-overview.webp",
      "width": 3200,
      "height": 2000,
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      "capturedApplication": "Original Arc development build",
      "fictionalData": true,
      "processing": "Original lossless PNG capture at 3200 x 2000 exported to WebP at quality 95. No UI text or chart replacement."
    },
    {
      "id": "bi-geography",
      "title": "The program across regions and schools",
      "description": "Regional and school breakdowns retain group, learner and teaching context.",
      "portal": "Admin BI",
      "src": "/media/projects/arc/portals/bi-geography.webp",
      "width": 3200,
      "height": 2000,
      "type": "image",
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      "capturedApplication": "Original Arc development build",
      "fictionalData": true,
      "processing": "Original lossless PNG capture at 3200 x 2000 exported to WebP at quality 95. No UI text or chart replacement."
    },
    {
      "id": "bi-lessons",
      "title": "Lesson delivery becomes inspectable",
      "description": "Run statistics, duration and the actual lesson-run list appear together.",
      "portal": "Admin BI",
      "src": "/media/projects/arc/portals/bi-lessons.webp",
      "width": 3200,
      "height": 2000,
      "type": "image",
      "bytes": 245332,
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      "capturedApplication": "Original Arc development build",
      "fictionalData": true,
      "processing": "Original lossless PNG capture at 3200 x 2000 exported to WebP at quality 95. No UI text or chart replacement."
    },
    {
      "id": "bi-students",
      "title": "See participation and work separately",
      "description": "The native view distinguishes submitted versions, drafts and repeat submissions before listing learner activity.",
      "portal": "Admin BI",
      "src": "/media/projects/arc/portals/bi-students.webp",
      "width": 3200,
      "height": 2000,
      "type": "image",
      "bytes": 221528,
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      "capturedApplication": "Original Arc development build",
      "fictionalData": true,
      "processing": "Original lossless PNG capture at 3200 x 2000 exported to WebP at quality 95. No UI text or chart replacement."
    },
    {
      "id": "bi-friction",
      "title": "Nine ways to notice friction",
      "description": "The native lens cards show signals, denominators and calculation disclosures. Some denominators count learner-run pairs rather than unique learners.",
      "portal": "Admin BI",
      "src": "/media/projects/arc/portals/bi-friction.webp",
      "width": 3200,
      "height": 2000,
      "type": "image",
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      "capturedApplication": "Original Arc development build",
      "fictionalData": true,
      "processing": "Original lossless PNG capture at 3200 x 2000 exported to WebP at quality 95. No UI text or chart replacement."
    },
    {
      "id": "bi-calculation",
      "title": "Open the reasoning behind a number",
      "description": "A native calculation dialog explains the no-show definition, threshold, formula and substituted values.",
      "portal": "Admin BI",
      "src": "/media/projects/arc/portals/bi-calculation.webp",
      "width": 3200,
      "height": 2000,
      "type": "image",
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      "capturedApplication": "Original Arc development build",
      "fictionalData": true,
      "processing": "Original lossless PNG capture at 3200 x 2000 exported to WebP at quality 95. No UI text or chart replacement."
    },
    {
      "id": "bi-impact",
      "title": "Inputs and peers beside the indices",
      "description": "The broader fictional cohort meets the comparison gates. VRI includes a fixed 0.8 stability assumption; these are modeled operational indices.",
      "portal": "Admin BI",
      "src": "/media/projects/arc/portals/bi-impact.webp",
      "width": 3200,
      "height": 2000,
      "type": "image",
      "bytes": 245568,
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      "capturedApplication": "Original Arc development build",
      "fictionalData": true,
      "processing": "Original lossless PNG capture at 3200 x 2000 exported to WebP at quality 95. No UI text or chart replacement."
    },
    {
      "id": "bi-comparison-gate",
      "title": "A narrower scope changes what can be concluded",
      "description": "The seven-day view has insufficient eligible peers and displays absolute values instead of a peer comparison.",
      "portal": "Admin BI",
      "src": "/media/projects/arc/portals/bi-comparison-gate.webp",
      "width": 3200,
      "height": 2000,
      "type": "image",
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      "capturedApplication": "Original Arc development build",
      "fictionalData": true,
      "processing": "Original lossless PNG capture at 3200 x 2000 exported to WebP at quality 95. No UI text or chart replacement."
    },
    {
      "id": "scoped-grading",
      "title": "Understand the review workload",
      "description": "Queue age, grade distribution and a class-by-lesson heatmap show different parts of the feedback pipeline.",
      "portal": "Scoped analytics",
      "src": "/media/projects/arc/portals/scoped-grading.webp",
      "width": 3200,
      "height": 2000,
      "type": "image",
      "bytes": 186472,
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      "capturedApplication": "Original Arc development build",
      "fictionalData": true,
      "processing": "Original lossless PNG capture at 3200 x 2000 exported to WebP at quality 95. No UI text or chart replacement."
    },
    {
      "id": "scoped-progress",
      "title": "Follow the lesson through the work",
      "description": "Started, submitted and reviewed activity remains distinct in the lesson progression and weekly reporting views.",
      "portal": "Scoped analytics",
      "src": "/media/projects/arc/portals/scoped-progress.webp",
      "width": 3200,
      "height": 2000,
      "type": "image",
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      "capturedApplication": "Original Arc development build",
      "fictionalData": true,
      "processing": "Original lossless PNG capture at 3200 x 2000 exported to WebP at quality 95. No UI text or chart replacement."
    },
    {
      "id": "instructor-workspace",
      "title": "A teacher’s starting point",
      "description": "The original instructor home opens the assigned classrooms and shows their school and content-pack context.",
      "portal": "Instructor",
      "src": "/media/projects/arc/portals/instructor-workspace.webp",
      "width": 3200,
      "height": 2000,
      "type": "image",
      "bytes": 159508,
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      "capturedApplication": "Original Arc development build",
      "fictionalData": true,
      "processing": "Original lossless PNG capture at 3200 x 2000 exported to WebP at quality 95. No UI text or chart replacement."
    },
    {
      "id": "instructor-classroom",
      "title": "A classroom hub with a lesson tree",
      "description": "The sidebar keeps classroom context, learners, grades, questionnaires and statistics beside the selected lesson panel.",
      "portal": "Instructor",
      "src": "/media/projects/arc/portals/instructor-classroom.webp",
      "width": 3200,
      "height": 2000,
      "type": "image",
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      "capturedApplication": "Original Arc development build",
      "fictionalData": true,
      "processing": "Original lossless PNG capture at 3200 x 2000 exported to WebP at quality 95. No UI text or chart replacement."
    },
    {
      "id": "instructor-learners",
      "title": "The people inside the classroom",
      "description": "The learner panel sits inside the classroom hub. All names and records in this capture are fictional.",
      "portal": "Instructor",
      "src": "/media/projects/arc/portals/instructor-learners.webp",
      "width": 3200,
      "height": 2000,
      "type": "image",
      "bytes": 389034,
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      "fictionalData": true,
      "processing": "Original lossless PNG capture at 3200 x 2000 exported to WebP at quality 95. No UI text or chart replacement."
    },
    {
      "id": "instructor-gradebook",
      "title": "A grade matrix with different work states",
      "description": "Scores, feedback-only work, work awaiting review and unfinished activity have distinct treatments in the native matrix.",
      "portal": "Instructor",
      "src": "/media/projects/arc/portals/instructor-gradebook.webp",
      "width": 3200,
      "height": 2000,
      "type": "image",
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      "capturedApplication": "Original Arc development build",
      "fictionalData": true,
      "processing": "Original lossless PNG capture at 3200 x 2000 exported to WebP at quality 95. No UI text or chart replacement."
    },
    {
      "id": "instructor-statistics",
      "title": "Learning activity with multiple perspectives",
      "description": "Data lenses and filters connect participation, submitted work, feedback and revision patterns over time.",
      "portal": "Instructor",
      "src": "/media/projects/arc/portals/instructor-statistics.webp",
      "width": 3200,
      "height": 2000,
      "type": "image",
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      "processing": "Original lossless PNG capture at 3200 x 2000 exported to WebP at quality 95. No UI text or chart replacement."
    }
  ],
  "films": [
    {
      "id": "admin-bi-exploration",
      "title": "The program behind the classroom.",
      "description": "Explore the original admin and scoped school analytics: inventory, nine friction lenses, an open calculation, modeled indices, a comparison gate and the work behind the numbers.",
      "src": "/media/projects/arc/portals/admin-bi-exploration.mp4",
      "poster": "/media/projects/arc/portals/admin-bi-exploration-poster.webp",
      "captions": "/media/projects/arc/portals/admin-bi-exploration.vtt",
      "width": 1920,
      "height": 1080,
      "duration": 45.5,
      "chapters": [
        {
          "at": 0,
          "title": "Inventory and activity",
          "description": "The original BI view separates all-time inventory from activity within the selected period. Every figure comes from fictional local fixtures."
        },
        {
          "at": 6,
          "title": "Nine friction lenses",
          "description": "Nine distinct lenses show different participation and workflow patterns. Labels and calculation controls remain visible in the original interface."
        },
        {
          "at": 12,
          "title": "Open the calculation",
          "description": "The native No-Show explanation opens. A close-up retains its formula, variables and concrete substitution: one qualifying run out of 25 gives 4%."
        },
        {
          "at": 20,
          "title": "Read modeled indices carefully",
          "description": "The 30-day modeled-index view includes five eligible peers. Its VRI calculation includes a fixed 0.8 assumption; these indices are not validated causal measurements of teaching quality."
        },
        {
          "at": 25,
          "title": "Respect the comparison gate",
          "description": "A separately loaded seven-day slice has no eligible peers. Arc retains absolute values and explicitly withholds a fair peer comparison; this differs from the 30-day view shown before it."
        },
        {
          "at": 31.5,
          "title": "Review queues and grade context",
          "description": "The scoped school analytics view displays review age, score distribution and a class-by-lesson grade matrix. A detail insert makes the matrix values readable."
        },
        {
          "at": 38.5,
          "title": "Follow lesson progression",
          "description": "Started, submitted and reviewed counts stay separate along the lesson sequence, followed by a weekly trend view. This is fictional history, not reported live program impact."
        }
      ],
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      },
      "edit": "Uniform source-pixel crops and Lanczos scaling, calm hard cuts, frame holds/time stretching, two detail inserts, and editorial captions outside the original UI. Every frame contains original interface pixels. No generated replacement UI, invented provider result, synthetic interaction or audio.",
      "caveats": [
        "Different date windows are separate original views, not a filmed filter-change interaction.",
        "Modeled indices contain assumptions and should not be treated as validated causal measurements.",
        "Original fixture inventory is distinct from the code-native explorer fixture.",
        "Native interface wording and incidental source display limitations are preserved."
      ],
      "codec": "H.264",
      "pixelFormat": "yuv420p",
      "fps": 30,
      "fastStart": true
    }
  ],
  "earlierCaptureManifests": [
    "/media/projects/arc/capture-manifest.json"
  ],
  "earlierCaptureReview": "/media/projects/arc/depth/research.md",
  "review": "/media/projects/arc/portals/research.md",
  "capabilityMap": "/media/projects/arc/portals/capability-map.json"
}