openapi: 3.0.3 info: title: CATIA V5 R21 Download API version: 1.0.0 paths: /api/v1/catia/v5/r21/download: post: summary: Request a ZIP package of CATIA V5 R21 security: - bearerAuth: [] requestBody: required: true content: application/json: schema: type: object required: [components] properties
If you are a student or professional, check if your university or company provides access to the DS License Server or the 3DEXPERIENCE platform for legitimate software access. catia v5 r21 zip file download
| FR # | Description | Priority | |------|-------------|----------| | | Authentication & Authorization – Only logged‑in users with the CATIA‑R21‑Download permission may request a ZIP. | | FR‑2 | Dynamic Packaging Service – On request, a backend service builds a ZIP from a predefined source directory, respecting the component selection saved in the user profile. | | FR‑3 | Checksum Generation – Compute SHA‑256 (and optionally MD5) for the ZIP; expose the hash in the UI and API response. | | FR‑4 | Digital Signature – Sign the ZIP with the organization’s code‑signing certificate (CMS/PKCS#7). | | FR‑5 | Optional Encryption – If the user has uploaded a public PGP key, encrypt the ZIP with that key; otherwise deliver unencrypted but signed. | | FR‑6 | Download URL – Provide a one‑time, time‑limited (e.g., 24 h) HTTPS URL with a token (JWT or opaque token). | | FR‑7 | Progress Indicator – For files > 500 MB, show a progress bar (client‑side) with estimated time. | | FR‑8 | Audit Logging – Record user ID, IP, timestamp, selected components, file size, checksum, and download status (started, completed, aborted). | | FR‑9 | Retention Policy – Auto‑expire generated ZIP files after 48 h (or configurable) to free storage. | | FR‑10 | Error Handling – Return meaningful error codes: 401 (unauth), 403 (license missing), 429 (rate‑limit), 500 (packaging failure). | | FR‑11 | Rate Limiting – Limit each user to N downloads per 24 h (default 3) to avoid abuse. | | FR‑12 | Internationalization – UI text available in EN, FR, DE, JP, CN. | | FR‑13 | Accessibility – All UI controls conform to WCAG 2.1 AA. | | FR‑14 | API Endpoint – POST /api/v1/catia/v5/r21/download accepts JSON payload: "components": ["core","knowledgeware","en_us"], "encrypt": true . Returns JSON with "downloadUrl", "checksum", "expiresAt" . | | FR‑15 | Admin UI – Admins can add/remove components to the “default package” and set maximum ZIP size per user role. | openapi: 3
Licensed users can access the 3DS Download Center. After logging in with your credentials, select the V5 category and filter by the R21 release year to find the installer. | | FR‑3 | Checksum Generation – Compute
Before downloading the heavy zip files (often several gigabytes), ensure your system can handle the software: How to Install CATIA V5 (All Versions) - Hawk Ridge Systems
| NFR # | Description | |-------|-------------| | | Performance – ZIP generation must finish within 2 minutes for the default package (≈2 GB). | | NFR‑2 | Scalability – Service should handle up to 100 concurrent packaging jobs; use a queue (e.g., RabbitMQ, SQS) and worker pool. | | NFR‑3 | Reliability – 99.9 % availability of the download endpoint; implement retry logic for transient storage failures. | | NFR‑4 | Security – All traffic TLS 1.3; tokens signed with RSA‑4096 or ECDSA‑P‑256. | | NFR‑5 | Data Protection – Store only the generated ZIP temporarily on encrypted storage (AES‑256). No personal data inside the ZIP. | | NFR‑6 | Compliance – Follow Dassault Systèmes redistribution policy; embed licensing metadata in a license.txt file inside the ZIP. | | NFR‑7 | Monitoring – Expose Prometheus metrics: download_requests_total , zip_build_time_seconds , download_success_total , download_error_total . | | NFR‑8 | Backup / Disaster Recovery – Source binaries are stored in a replicated NAS; packaging workers can be redeployed in a secondary region. | | NFR‑9 | Maintainability – Codebase in Go (backend) + React (frontend). Unit test coverage ≥ 80 %. | | NFR‑10 | Documentation – API spec in OpenAPI 3.0, user guide PDF, admin SOP for component management. |
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