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Meeting DO-178B/C Certification with Visure Requirements
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Meeting DO-178B/C Certification with Visure Requirements

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Visure Requirements offers comprehensive and agile artifact management for the development and verification of avionic embedded systems. It provides end-to-end traceability between all the …

Visure Requirements offers comprehensive and agile artifact management for the development and verification of avionic embedded systems. It provides end-to-end traceability between all the requirements, verification, problem reporting, checklists and project artifacts in one single environment and through the integration with other tools of
the lifecycle.

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  • 1. MEETING DO-178B/C CERTIFICATION WITH VISURE REQUIREMENTSWhat is RTCA DO-178B/C?The RTCA DO-178B/C Software Considerations in Airborne Systems and Equipment Certification is the standardfor safety-critical software used in airborne systems. The standard requires a deep and rigorous traceability of theproject artifacts throughout all the stages of the development.In 2012, the standard was updated and DO-178C was published. This brought advanced techniques such asmodelling, object-oriented programming and formal methods to safety-critical software developments. Furthermore,the updated standard introduced new concepts like bi-directional traceability for all trace data.What is RTCA DO-178B/C with visure requirementsVisure Requirements offers comprehensive and agile artifact management for the development and verification ofavionic embedded systems. It provides end-to-end traceability between all the requirements, verification, problemreporting, checklists and project artifacts in one single environment and through the integration with other tools ofthe lifecycle.Visure Requirements helps enforce the process to meet the DO-178B/C objectives and create the necessarydeliverables for the design assurance level. benefits 1. One single, process-oriented solution for all requirements, verification, problem reporting, checklists and project artifacts. 2. Centralized and open repository for all artifacts, including DO-178B/C objectives. 3. End-to-end traceability between the artifacts, for full impact analysis. 4. Requirements Quality enforcement.Process Representation and EnforcementVisure Requirements allows you to standardize and streamline your organization processes related to DO-178B/C,by graphically defining the artifacts and enforcing the traceability policy between them. Figure 1. Example of DO-178 B/C process diagramwww.visuresolutions.com Copyright © 2013, Visure Solutions. All rights reserved.
  • 2. Writing good RequirementsTemplates for any DO-178B/C requirements (System,High-Level, Low-Level, Derived, etc.) can be created inthe Visure Requirements repository, help user effectivelycapture detailed requirements from the start of project.The Quality Analyzer automatically identifies poorrequirements early in to process and helps enforcerequirements standards to allow projects to safelytransition into next phases of the lifecycle while minimizingerrors and rework of requirements. Figure 2. Requirements, attributes and description Figure 3. Quality Analyzer checkStraightforward Requirements AllocationRequirements can be allocated following the defined process, so users can easily work through it. Figure 4. Example of Requirements allocationwww.visuresolutions.com Copyright © 2013, Visure Solutions. All rights reserved.
  • 3. Requirement based VerificationRequirement based verification plans can be written and traced against requirements in Visure Requirements. Testcase results and artifacts can also be stored in the same repository helping support the software verification processactivities. Users are able to review the requirements coverage, identifying missing links, failed requirements andimpact of changes. Figure 5. Test Case Management for DO-178B/CSupport for Problem ReportingProblem reports can be recorded and traced against artifacts in Visure Requirements to track any anomalousbehavior of software products.Corrective actions can now be managed and tracked appropriately. Figure 6. Problem report view with attributesWorkflowWorkflows can be created and enforced for any project activity, representing user-defined states and the transitionsbetween them.Each transition can be associated to a group of authorized roles, guaranteeing a correct approval, review andchange processes. Figure 7. Example of a graphical representation of the states and transitions of a workflowwww.visuresolutions.com Copyright © 2013, Visure Solutions. All rights reserved.
  • 4. TraceabilityOne of the key elements in DO-178B/C is requiring that project artifacts are traceable. Visure Requirements cancreate, enforce and manage many-to-many bi-directional traceability links at all level of requirements decomposition,verification plans and results, source code, problem report and changes.Traceability matrices and reports can be automatically generated, as well as traceability views across the projectdisplaying up and downstream links. Figure 8. Traceability view displaying downstream links from system to low level requirements to test cases Figure 9. Traceability Matrix displaying links between high and low level requirements.Objectives FulfillmentVisure Requirements can display in one single view the full list of DO-178B/C objectives, along with the fulfillment,to save time and effort to the teams, and help in the generation of evidence. Figure 10. Sample list of DO-178B/C Objectiveswww.visuresolutions.com Copyright © 2013, Visure Solutions. All rights reserved.
  • 5. Review ChecklistsReview checklists can be created, managed and traced to any project artifacts, helping users conducting their QAreviews. Figure 11. Example of a Review ChecklistIndependenceVisure Requirements supports role-based access and permission to the project artifacts to enforce independentchecks. Change audits can be made to ensure that users without permissions haven’t performed any activityrequiring independence.Configuration ManagementAll project artifacts are configuration managed out-of-the-box, keeping track of who modified what and when.Versions of each individual artifact are kept in the history allowing the review of a previous version, comparedifferent versions, or restore a previous one.Artifact baselines can also be created out of single specifications, groups of specifications or the complete project,allowing to compare, review, approve or roll back to previous baselines.Deliverables GenerationDO-178B/C deliverables can be generated from any project artifact and its traceability using the Visure Requirementsreporting capabilities.CONTACTVisure Solutionsinfo@visuresolutions.com+34 91 806 17 13+1 415 745 3304www.visuresolutions.comwww.visuresolutions.com Copyright © 2013, Visure Solutions. All rights reserved.

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