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MBSE Usability Activity Team Model-based Systems Engineering (MBSE) Initiative

MBSE Usability Activity Team Model-based Systems Engineering (MBSE) Initiative. Outbrief MBSE Workshop Breakout Session 31 January 2011. MBSE Usability Activity Team – Breakout Session. Approach: Create a set of use cases: Story & Use case details

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MBSE Usability Activity Team Model-based Systems Engineering (MBSE) Initiative

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  1. MBSE Usability Activity TeamModel-based Systems Engineering (MBSE) Initiative Outbrief MBSE Workshop Breakout Session 31 January 2011

  2. MBSE Usability Activity Team – Breakout Session • Approach: • Create a set of use cases: Story & Use case details • Rank the use cases in order starting with the use case that has the most potential to generate findings (hypothesis) • High Value Use Case Dimension • Usability measures of success • Identify usability levels • Identify method to communicate usability issues • Conduct a root cause analysis for each usability issues • Goals: • Usability - "The extent to which a product can be used by specified users to achieve specified goals with effectiveness, efficiency, and satisfaction in a specified context of use.“ ISO • To identify how SysML and supporting tools can be made easier to learn and use and to promote usability improvements. • Results/High Value Usability Use Cases: • Conduct a Design Review using MBSE Environment • Assemble components and associated behaviors for library • Make assertions on current design • Define System architecture and conduct architectural analysis • Breakout Session Participation • 24 participants • 3 Groups – each one focused upon one of the three proposed high value use case dimensions • Open Issues: • Define usability that is non-specific to a tool vendor • Approaches to quantify value added (so for Potential Value (PV) and Frequency of occurrence of a use case • Ease of determining differences between model elements and model variants IW 2010 2 Technical Operations

  3. High Value Use Case Dimensions SysML Diagram Type Requirement Use Case Activity Sequence State Chart IBD BDD Parametric Package Cross Cutting Customizations (Profile) Requirements – 50% of the problems are introduced in requirements - SEI Designs are 50-70% correct going into testing – Reynolds Validation Verification Integration Prototype Implementation Collaboration Design / Trades Analysis & Simulation Req / Agreement Trace & Impact analysis Op Con Generate (Artifacts / Documents) Configuration Management Process Step Tool Type

  4. MBSE Usability Working Group High Value Use Case Results - Draft

  5. MBSE Usability Activity Team Next Steps

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