Holarch

Videos

Tours, highlights, series and tutorials

See Holarch at work, follow a whole project from concept to verification, then try a tutorial in the app (Help → Tutorials).

Tours

Feature highlights

Short clips, one feature each, on the CubeSat EO-1 demo project.

Requirements

Behavior and simulation

Architecture and interfaces

Analysis and decisions

Verification

Collaboration

AI

Building a CubeSat in Holarch

A series that builds the CubeSat EO-1 model step by step, from the mission concept to verification and the program reviews. Watch the episodes in order, or pick the step you need.

CubeSat 00: The Mission and the MethodA tour of the finished EO-1 model: one LML model behind every document, diagram and matrix, the dashboard, the schema and the SE V.CubeSat 01: Concept and NeedsCreate the project, capture the concept (OV-1) and stakeholder needs on whiteboards, and write the system requirements specification.CubeSat 02: Requirements That Hold UpRun the quality check, track TBDs and TBRs, approve and baseline the requirements, then show what changed after the baseline.CubeSat 03: Functional AnalysisWrite the top-level functional flow as text, with parallel, loop and decision constructs, and let Holarch draw the FFBD.CubeSat 04: Operations and SimulationBuild a nominal imaging pass as an action diagram with a parallel branch, a loop and a decision, plus durations, an item flow and a resource.CubeSat 05: Physical ArchitectureAdd assets and conduits, keep an interface register, generate the ICD, read N-squared views and allocate functions to components.CubeSat 06: SysML ViewsBlock definition and internal block diagrams with ports, a state machine, use cases, a requirement diagram and a parametric power check.CubeSat 07: Analysis and DecisionsMass and power budgets, TPMs, a weighted trade study with sensitivity, the recorded decision, and the risk register and burn-down.CubeSat 08: TraceabilityA traceability matrix to find gaps, spider and tree views, impact analysis before a change, suspect links after it, and model checks.CubeSat 09: VerificationTest suites and cases linked to requirements, test runs with evidence, failures that become issues, and the RVTM with its export.CubeSat 10: Running the ProgramA task board, the Gantt schedule, the dashboard, a briefing presented from model pictures, DoDAF products, baselines and review documents.

Systems Engineering with Holarch

A series that follows the ISO/IEC/IEEE 15288 technical processes on one small project, the WS-1 Weather Station, from mission analysis to the technical reviews.

SE 01: Mission Analysis: Define the Problem Before the SolutionCreate the WS-1 project, sketch the operational concept on a whiteboard, and link the mission, its MOEs and constraints in the model.SE 02: Stakeholder Needs: Who Needs What, and WhyRecord the stakeholders, turn workshop notes into stakeholder requirements traced to their source, write a scenario and record the approval.SE 03: System Requirements: Writing Requirements You Can VerifyWrite the WS-1 specification, run the quality check, fix what it flags, register an open TBD and take a baseline.SE 04: Functional Architecture: What the System Must DoExtract functions from the requirements, decompose one, write the flow as text, read the FFBD and check requirement coverage.SE 05: Physical Architecture: What the System IsBuild the component tree, allocate functions in the matrix, draw conduits, manage the Interface Register and generate an ICD.SE 06: System Analysis: Budgets, Margins and SimulationA power budget read from the components, battery autonomy as a TPM, and a simulation of frost warning delivery against its requirement.SE 07: Decision Management: Trade Studies You Can DefendA trade study for the radio link, a check of how sensitive the result is to the weights, and the decision recorded with its rationale.SE 08: Risk Management: Likelihood, Consequence and Burn-DownBuild the WS-1 risk register, link a mitigation as real work in the model, and plan the risk burn-down.SE 09: Traceability and Change: Knowing What a Change AffectsFind gaps in the traceability matrix, follow a requirement in the spider diagram, change it, review the suspect links and compare baselines.SE 10: Verification and Validation: Showing the System WorksSet verification methods, write and run test cases, raise an issue from a failure, read the RVTM and validate against the MOEs.SE 11: Technical Reviews: SRR, PDR and CDR from the ModelCheck the SRR criteria against the model, assemble and export a review package, present a briefing from the model and record the outcome.

Tutorials

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