Bill
4d6f81d1e5
Apply the J27 (5/6/2026) Stern specialization sheet: - Add Healthcare (HCR) as the 15th specialization, with HCR cross-listings on spr2-health-medical, spr3-analytics-ml, sum2-social-media (renamed), and fall1-managing-change. 10 credits available, no required-course gate. - Rename sum2-social-media to "Digital Marketing Strategy in Practice"; replace its description with new MSKCC-anchored content; clear instructor pending confirmation of new lead. - Switch from delete-and-replace to the previously-unused cancelled flag (Approach B): mark spr5-customer-insights cancelled, add Managing Growing Companies back to Summer Set 2 as a cancelled placeholder per the printed sheet. - Update data integrity tests: course count 46 -> 47, spec count 14 -> 15; per-spec "across sets" helper now filters cancelled courses so future cancellations trigger an obvious assertion failure (BRM 6 -> 5, MKT 7 -> 6, HCR 4 new). - Replace hardcoded 14 in optimizer.test.ts with SPECIALIZATIONS.length.
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Changelog
v1.2.2 — 2026-05-09
Changes
- Healthcare specialization (HCR) — added 15th specialization, Healthcare; qualifies via The Business of Health & Medical Care (Spring Set 2), Analytics & Machine Learning for Managers (Spring Set 3), Digital Marketing Strategy in Practice (Summer Set 2), and Managing Change (Fall Set 1); 10 total credits available, no required course gate
- Course rename — "Social Media and Mobile Technology" renamed to "Digital Marketing Strategy in Practice"; description replaced with new MSKCC-anchored content covering digital strategy and agentic AI; instructor cleared pending confirmation
- Cancellations (Approach B) — switched from delete-and-replace to flagging cancelled courses with
cancelled: true. "Customer Insights" (Spring Set 5) is now marked cancelled. "Managing Growing Companies" reappears in Summer Set 2 as a cancelled placeholder per the J27 sheet - Reachability test —
data.test.tsnow excludes cancelled courses when counting per-spec set reachability, so future cancellations are caught by an obvious assertion failure
v1.2.1 — 2026-03-27
Bug Fixes
- Achievable status accuracy — specializations marked "Achievable" are now verified via LP feasibility check against already-achieved specs; previously, a specialization could show "Achievable" based on raw credit potential while actually being infeasible due to credit sharing with higher-priority achieved specializations
v1.2.0 — 2026-03-27
Changes
- Course info popovers — each course now has an info icon that opens a popover showing the course description, instructor(s), and specialization tags, extracted from the J27 Electives PDF; opens on hover (desktop) or tap (mobile), with smart positioning that flips above when near the bottom of the viewport
- Page title and favicon — updated browser tab from "app" with Vite icon to "EMBA Specialization Solver" with a graduation cap favicon in NYU Stern purple
- Viewport-fitted layout — desktop layout now fits within the viewable area without page-level scrolling; each pane scrolls independently
v1.1.1 — 2026-03-27
Changes
- Course replacement — replaced cancelled "Managing Growing Companies" with new course "Innovation and Design" in Summer Elective Set 2; qualifies for Brand Management, Entrepreneurship and Innovation, Marketing, and Strategy (S2)
v1.1.0 — 2026-03-13
Changes
- Cancelled course support — "Managing Growing Companies" (Summer Elective Set 2) is marked as cancelled and rendered with strikethrough, greyed-out styling, and a "(Cancelled)" label; it is excluded from solver computations and decision tree enumeration
- Duplicate course prevention — courses that appear in multiple elective sets (e.g., "Global Immersion Experience II" in Spring Set 1 and Summer Set 1, "The Financial Services Industry" in Spring Set 2 and Fall Set 4) are now linked; selecting one automatically disables and excludes its duplicate from selection and solver calculations, shown with an "(Already selected)" label
- Credit bar tick marks — specialization progress bars now display light vertical tick marks at 2.5-credit intervals for visual scale reference, layered above bar fills with the 9.0 threshold marker remaining visually distinct
v1.0.0 — 2026-02-28
Initial release of the EMBA Specialization Solver.
Features
- Optimization engine — LP-based credit allocation solver with two modes:
- Maximize Count — finds the largest feasible set of specializations, using ranking as tiebreaker
- Priority Order — greedily adds specializations in user-ranked order
- Course selection UI — select one course per elective set across 12 sets (Spring, Summer, Fall terms)
- Drag-and-drop specialization ranking — reorder the 14 specializations by priority with touch and keyboard support
- Decision tree analysis — Web Worker enumerates remaining course combinations to compute ceiling outcomes per choice
- Status tracking — each specialization classified as achieved, achievable, missing required course, or unreachable
- Mode comparison — displays what the alternative optimization mode would produce
- Credit bars and allocation breakdowns — visual progress toward the 9-credit threshold with expandable per-course detail
- Credit legend — collapsible explainer for bars, badges, and limits
- Required course labels — courses that are prerequisites for a specialization show "Required for ..." labels
- Algorithm explanations — clear descriptions of how each optimization mode works
- Skeleton loading — placeholder UI while decision tree analysis runs
- Auto-expand achieved specializations — achieved specs show their credit breakdown by default
- Responsive layout — two-panel grid on desktop/tablet, single-column on mobile
- Mobile floating banners — top banner summarizes specialization statuses, bottom banner shows selection progress (N/12); both appear via IntersectionObserver and scroll to their sections on tap
- CSS transitions and animations — cross-fade course pin/unpin, credit bar width changes, status badge color transitions, expand/collapse panels, mode toggle switching, flash on status changes; all respect
prefers-reduced-motion - State persistence — rankings and selections saved to localStorage
- Docker deployment — multi-stage Dockerfile (Node 22 build → Nginx Alpine serve) with Docker Compose, gzip compression, SPA fallback routing, immutable cache headers for hashed assets, configurable port (default 8080)
- Full test suite — data integrity, feasibility solver, optimizer, and decision tree tests via Vitest
Constraints Modeled
- Credit non-duplication (2.5 credits per course shared across specializations)
- Maximum 3 specializations (30 total credits, 9 required each)
- Required course prerequisites for 4 specializations
- Strategy S1/S2 tier system (at most 1 S2 course contributes to Strategy)
- Mutual exclusion from same-set conflicts