What are HLD and LLD
HLD describes the high-level target architecture: contours, systems, zones, and principles. LLD details components, settings, integrations, flows, addressing, rules, and implementation requirements.
When needed
Before implementing information security systems, upgrading infrastructure, protecting ISPD/CII/GIS, launching new systems, creating SOC, DevSecOps or AI environment.
Scope of work
Gathering requirements, survey, threat model, selection of solution classes, architecture, diagrams, infrastructure requirements, implementation plan, acceptance criteria.
Artifacts
HLD, LLD, schemes, access matrices, data flows, requirements for information security, implementation plan, list of risks, operating recommendations.
Value
Good design reduces the risk of expensive rework, system conflicts, incomplete implementations, and technical debt.
Link to implementation
After design, you can proceed to implementation, configuration, testing, documentation and commissioning.
Risks and limitations
Before launch, the boundaries of the environment, data sources, information security requirements, access roles, integrations, process owners and operational restrictions are fixed. This reduces the risk of a formal implementation that does not work in the customer's actual architecture.
Result Artifacts
- description of the business problem and success criteria;
- target architecture or process design;
- integration and data requirements plan;
- list of risks, restrictions and control points;
- roadmap of implementation, pilot or development.
Frequently asked questions
When should the solution be launched?
When a task is repetitive, impacts risk or money, and requires linking multiple systems, data, or teams.
Is it possible to start with the pilot?
Yes. The pilot helps test the hypothesis, data, integrations and constraints before production implementation.
What restrictions are fixed in advance?
Access, data, regulation, timing, integration, operation, process owners and acceptance criteria.
Let's discuss your environment
Describe the task, current systems, constraints, and expected results. We will offer a practical first step: diagnostics, pilot, audit, roadmap or project team.
