Bound.
System requirements and Interface Control Documents (ICDs) that resolve boundary conflicts between competing subcontractors.
When a prime contractor divides a complex system among mechanical, electrical, firmware, and software suppliers, the risk concentrates at the seams. If connector pinouts, bus timing budgets, thermal dissipation envelopes, or hydraulic flow limits are documented inconsistently, system integration fails during physical assembly.
Kelvorina specializes in establishing rigorous system boundaries and authoring enforceable Interface Control Documents. Our consultation is billed at $150 to $250 per hour, structured around 55-minute interface reconciliation sessions led by Maria Ivanova from our Denver office.
Every interface boundary is defined by three inseparable parametric records:
Engagements typically begin with one to three discovery interviews to collect vendor cadences and ICD assumptions, with initial technical evaluations delivered in one to three working days.
| Interface Aspect | Practice Standard |
|---|---|
| Consultation Rate | $150–250 USD / hr |
| Review Session Unit | 55 min milestone block |
| Discovery Structure | 1–3 discovery interviews |
| Evaluation Turnaround | 1–3 working days |
| Core Deliverable | Enforceable ICD + Verification Matrix |
| Operator Verification | 12 completed capital systems |
Arbitrate.
How Kelvorina structures multi-subcontractor Interface Control Documents (ICDs).
When two independent engineering companies supply mating subsystems, both naturally write specifications favoring their own internal architectures. Our practice acts as the neutral technical authority. We establish unambiguous boundaries where tolerances and verification obligations are mathematically apportioned.
| Interface ID | Subsystem A (Source) | Subsystem B (Sink) | Interface Envelope & Tolerance | Verification Method |
|---|---|---|---|---|
| ICD-MEC-012 | Hydraulic Manifold Enclosure | Chassis Mounting Bay | Fastener pitch 120.0 ± 0.05 mm; Surface flatness ≤ 0.02 mm | Inspection (Coordinate Measuring Machine) |
| ICD-PWR-004 | Main Distribution Unit | Auxiliary Sensor Node | 24.0 VDC ± 0.4 V; Max ripple ≤ 50 mVpp at 10 A load | Test (Oscilloscope bench routine TR-08) |
| ICD-DAT-019 | Telemetry Transmitter | Mission Flight Computer | CAN 2.0B at 500 kbps; Termination 120 Ω ± 1%; Max latency 5 ms | Demonstration (Bus analyzer loop back) |
Every ICD produced under our consultation is entered directly into your systems engineering repository (Jama, DOORS, or Git-managed Markdown) with bilateral sign-off blocks for each vendor lead.
Protect.
Pre-empting acceptance disputes through formal verification cross-reference matrices.
When capital projects approach stage-gate deadlines, vendors often attempt to negotiate relaxed test criteria or point fingers at adjacent interfaces. A Kelvorina Verification Cross-Reference Matrix (VCRM) eliminates wiggle room.
We tie every requirement to a specific verification protocol before the contract is awarded. If a supplier questions an acceptance threshold, the signed VCRM proves exactly what was agreed, the calibrated instruments required, and the pass/fail boundary.
System Requirements Desk
Conducted by Maria Ivanova. Available for in-person working sessions at 1371 Cherokee Street in Denver, or secure remote collaboration across North American teams.
Initial evaluations take 1 to 3 days. Standard sessions are 55 minutes.