How to Write Embedded Project Requirements: RK3588 Pre-Project Checklist (2026)

Key takeaway: the biggest hidden cost in embedded customization is unclear requirements. "Build a vision inspection device" versus a complete 10-item requirement sheet can produce quotes that differ by 2x and timelines that differ by 2x — vendors can only price their assumptions. Spending one or two days completing the checklist below is the highest-ROI investment in the whole project.

1. Why a requirement checklist matters so much

• Accurate quotes: vendors select platforms and estimate effort against defined requirements — only then are quotes comparable;
• Shorter timelines: email ping-pong clarifying requirements often takes longer than the development itself;
• Lower risk: assumptions left in vague requirements always become acceptance disputes;
• Right platform choice: RK3588 or RK3576? Android or Linux? The platform is derived from requirements — with missing requirements, vendors over-provision and cost goes up.

2. The 10-item pre-project checklist

#	Item	What to specify	Example
1	Use case	Where deployed, who uses it, environment	Inline defect inspection on a factory line, 3 shifts
2	Core functions	The 3~5 things the device must do	Capture, model inference, NG-signal output
3	Performance metrics	Quantified: fps, channels, latency, concurrency	4x 1080p@30fps input, <100ms per-frame inference
4	Interfaces & peripherals	Which ports, what devices	2x MIPI CSI cameras, 2x RS485, GbE, USB printer
5	Display & interaction	Screen size/count/touch, LEDs, buttons	10.1" MIPI + capacitive touch, dual display
6	OS & ecosystem	Android or Linux, app form, cloud/MES integration	Android 12, Kiosk single-app, customer MES API
7	Enclosure & power	Form factor, cooling, power supply, mounting	Fanless, DC 12~24V, wall-mounted
8	Certification	Market-entry requirements	3C, CE, local data storage
9	Production plan	Annual volume, first batch size, timing	First batch 100 units in 3 months, ~2000 units/year
10	Budget & timeline	Development budget, expected sample/production dates	Samples within 8 weeks, production this year

You don't need it perfect on day one — fill in what's decided, mark the rest "TBD", and the vendor's review will complete it. An annotated half-finished sheet is far better than a blank page.

3. Three most common mistakes

• Conclusions instead of scenarios: "Use RK3588" is not a requirement — "4x 1080p input + local inference + web preview" is. The platform should be derived from requirements; locking it first risks the wrong chip;
• Unquantified metrics: "runs smoothly" and "fast recognition" cannot be accepted or rejected — convert them to fps, latency and accuracy numbers;
• Forgetting the environment: temperature, humidity, dust and EMC conditions determine hardware grade and enclosure design — the most common cause of rework.

4. What happens after you send the checklist

The standard flow: requirement review (vendor asks back and completes) → platform selection & solution proposal → quotation & schedule → sample development. Hongyin Technology offers free requirement review: send your sheet (even items 1~5 only) and receive platform selection advice, feasibility feedback and tiered quotes within 48 hours. No sheet yet? Just describe your use case — our engineers will walk through this table with you item by item.

5. FAQ

• Q1: Must all 10 items be complete before starting?No. Items 1~5 (use case, functions, metrics, interfaces, interaction) are the core; the rest can be completed during review. The more complete it is, the more accurate the quote.
• Q2: I don't know which chip platform to pick.That is exactly what the checklist solves. Write down metrics and interfaces, and the vendor can derive whether RK3588/RK3576/RK3568 fits — avoiding paying for over-provisioning.
• Q3: Does the checklist become contractual?The finalized requirement specification after review is the basis for quote, schedule and acceptance, effective once signed by both sides; later changes go through an ECN process.
• Q4: Will our requirements be kept confidential?Hongyin Technology signs an NDA at the review stage; the sheet and all technical materials are used only for this project.
• Q5: Anything else to prepare besides the checklist?If available: reference product photos, integration docs for existing systems (MES/cloud APIs), enclosure sketches — optional, can follow later.

6. Related Solutions & Contact

Related solutions: find your scenario directly: Industrial Vision Inspection, Smart Retail Kiosk, Security NVR Recording, Camera Module Customization. Further reading: SoM Customization Cost & Timeline, MOQ & Low-Volume Production.

Shenzhen Hongyin Technology Co., Ltd. (HONGYIN TECH) provides embedded project customization on RK3588/RK3576/RK3568 platforms — free requirement review, engineer-direct communication and low-volume ordering. Send your checklist and receive selection advice and quotes within 48 hours.
phone +86 13728726926 | email sales@hoyin-tech.com | website www.hoyin-tech.com | address: Room 301, Building A, Fanrong Science Park, Sanwei Community, Hangcheng Street, Bao'an District, Shenzhen, China.