Capabilities
Cryptographic, cybersecurity, software, and systems engineering form the technical foundation. How they are applied is covered in How We Work; what they produce is covered in What We Deliver.
The model
ExistX separates engineering knowledge, engineering methods, and mission-system outputs so each can be understood on its own terms.
What ExistX knows
Four connected bodies of engineering knowledge, each with a defined scope.
How ExistX works
Engineering approaches that connect the disciplines across the lifecycle. See How We Work.
What ExistX delivers
High-Assurance Software-Enabled Mission Systems, supported by engineering, assurance, and sustainment artifacts. See What We Deliver.
The disciplines
Discipline 01
Connects algorithm and key-management decisions to implementation, assurance, agility, embedded constraints, and lifecycle transition.
Scope
Discipline 02
Integrates threat, architecture, software, components, evidence, and lifecycle decisions within a defined system boundary.
Scope
Discipline 03
Mission-software and lifecycle engineering: architecture, modernization, DevSecOps, automated testing, assurance, migration, and incremental delivery.
Scope
Discipline 04
Connects mission needs to architecture, embedded systems, interfaces, digital models, hardware-software integration, test, and lifecycle decisions.
Scope
Relationship model
The map shows how the four disciplines connect through named engineering relationships and a shared mission-system outcome.
Discipline A
Connects algorithm and key-management decisions to implementation, assurance, agility, embedded constraints, and lifecycle transition.
Discipline B
Integrates threat, architecture, software, components, evidence, and lifecycle decisions within a defined system boundary.
Discipline C
Mission-software and lifecycle engineering: architecture, modernization, DevSecOps, automated testing, assurance, migration, and incremental delivery.
Discipline D
Connects mission needs to architecture, embedded systems, interfaces, digital models, hardware-software integration, test, and lifecycle decisions.
Pairwise relationships
Every pair of disciplines has an explicit relationship. The model is shown as a network so no relationship disappears because of diagram geometry.
A + B
Applied Cryptographic Assurance
A + C
Cryptographic Modernization
A + D
Embedded & Crypto-Agile Systems
B + C
Secure Software Modernization
B + D
Cyber-Resilient System Architecture
C + D
Modular Open Systems Integration
Combined outcome
The combined delivery category produced when the four disciplines work as one system. It is a system outcome — not a fifth discipline, a certification, or proof of deployment.
Work and evidence
Specific results are recorded separately with attribution, environment, result, and limitations.
Next step
Start with the discipline closest to your technical need, then follow it into the methods, relationships, and evidence that matter to the mission.
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