CYSTEG
Our Approach

End-to-End Engineering Methodology

A structured, phased engineering methodology for delivering secure, reliable, and compliant systems and products. Our approach is applied consistently across enterprise IT environments, OT systems, and connected products, ensuring clear ownership, technical continuity, and measurable outcomes at every stage of the lifecycle.

1
Discovery1-2 weeks

Initial Assessment

We begin by understanding your system context, architecture, and operational constraints across IT and OT environments. This phase establishes a shared technical baseline.

Key Activities

  • System, product, and environment scoping (IT, OT, and interfaces)
  • Architecture and asset identification
  • Regulatory and standards context analysis
  • High-level risk and dependency identification

Deliverables

  • Assessment report
  • Initial architecture overview
  • Risk and dependency summary
2
Strategy1-2 weeks

Engagement Planning

Define scope, engineering interfaces, responsibilities, milestones, and dependencies to ensure effective collaboration and delivery.

Key Activities

  • Scope definition and engineering boundaries
  • Roles, responsibilities, and interfaces (customer, partners, suppliers)
  • Milestone and dependency planning
  • Communication and escalation model

Deliverables

  • Project plan
  • RACI and engagement model
  • Milestone and deliverable roadmap
3
Design2-4 weeks

System & Security Architecture

Engineering system and security architectures aligned with product, OT, and enterprise IT requirements.

Key Activities

  • System and product architecture design
  • Security architecture embedded into system design
  • Interface, trust boundary, and data flow definition
  • Alignment with safety, operational, and regulatory constraints

Deliverables

  • System & security architecture documentation
  • Architecture diagrams and interface models
  • Design rationale and assumptions
4
Build2-6 weeks

Implementation Support

Supporting engineering and development teams during implementation to ensure designs are realized correctly and securely.

Key Activities

  • Secure implementation guidance for IT, OT, and product teams
  • Design and configuration reviews
  • Support during development, integration, and deployment
  • Issue resolution and design adjustments

Deliverables

  • Implementation guidelines
  • Review findings and recommendations
  • Updated architecture documentation (if required)
5
Validate2-4 weeks

Verification & Validation

Verification and validation activities aligned with engineering requirements, standards, and certification needs.

Key Activities

  • Verification planning aligned with lifecycle and standards
  • Validation of implemented controls and mitigations
  • Support for certification and regulatory evidence
  • Issue tracking and resolution support

Deliverables

  • Verification & validation report
  • Test evidence and findings
  • Compliance and certification support artifacts
6
Deliver1-2 weeks

Documentation & Handoff

Engineering documentation and knowledge transfer to enable independent operation and long-term maintainability.

Key Activities

  • Engineering documentation finalization
  • Knowledge transfer and walkthrough sessions
  • Operational and maintenance guidance
  • Ownership and responsibility transition

Deliverables

  • Final engineering documentation set
  • Handover package
  • Knowledge transfer records
7
SustainContinuous

Ongoing Support

Engineering support during operation, maintenance, updates, and continuous improvement.

Key Activities

  • Engineering support during operation and change
  • Update and lifecycle support (IT, OT, products)
  • Continuous improvement and adaptation
  • Advisory support for new features or integrations

Deliverables

  • Support agreements
  • Engineering advisory outputs
  • Lifecycle and update recommendations
Resources

What You Receive

Throughout the engagement, we provide concrete engineering deliverables that enable implementation, validation, operation, and long-term ownership across IT, OT, and connected systems.

Security Assessment Template

PDF2.4 MB

TARA Methodology Guide

PDF1.8 MB

Compliance Checklist Pack

ZIP3.2 MB

Project Timeline Template

XLSX0.5 MB

Architecture & Design Artifacts

PDF1.6 MB

Requirements & Traceability Documents

PDF2.3 MB

* Sample templates available upon request during consultation

Ready to Begin?

Start with an initial engineering discussion to understand your system context, constraints, and objectives across IT and OT environments. Together, we define a clear path forward.