Working Group F

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Working Group F

Best Practices for Model Portfolio Management Workshop


Models enable the DOD Digital Engineering (DE) strategy to support engineering activities throughout the lifecycle. Some organizations have responded by defining a DE implementation plan that addresses their own DE strategy. However, the lack of a common set of best practices guidance that directly addresses managing models has created an “ad-hoc” approach. This lack of shared best practices, guidance, and standards leads to inconsistencies in defining or applying model management across organizations. The Model Portfolio Management (MPM) guide identifies goals and practices necessary to manage an organization’s portfolio of models. It defines the specific actions and work products to ensure that the collection of models meet organizational needs, are maintained, and integrated. It ensures that risk mitigation, opportunity capture, application of quality objectives, and modeling best practices are consistently applied across the portfolio.

The guide has been publicly released as an Aerospace Report (TOR-2020-01577), and is intended for organizations of all sizes as long as they have a collection of models and modeling resources to manage. The MPM guide can help acquirers manage their model libraries, encourage reuse, and provide suppliers a reference for further model development. Suppliers can use this guide to organize and communicate their model management plans to assure the acquirers that their model efforts are well-managed, trusted, and designed to meet acquisition objectives.

This guide is useful in defining the organization’s MPM Plan, establishing roles and governance, establishing model repositories, characterizing model registries, developing model artifact accession lists, and providing other useful management information to coordinate modeling efforts across the organization. The ultimate goal is to simplify and organize the management of models across a portfolio so that models are accessible, models are relevant, and the full breadth of models is known.

Contractors can organize and communicate their management plans to assure the government that their modeling efforts are well-managed, trusted, and designed to meet acquisition targets. This guide may be useful as a reference document for the pre-award acquisition process (market research through source selection), be placed in the bidder’s reference library, be a reference in the proposal preparation instructions, and used as a reference in the model contract.

The goal of this working group is to gather a collection of experiences, including lessons learned and practices for adopting and implementing Model Management for space mission ground systems. The resulting summary of practices and lessons learned will provide guidance and awareness to help organizations develop strategies and implement practices that are appropriate for different organizations pertaining to Model Management.

Proposed Format.
The format of the working group will be a combination of presentations and interactive discussion focusing on different aspects of model management for ground system development.

  • Part 1 – Introduction/Background
    • Model Management concepts
    • Key Definitions
    • Workshop Goals
    • Context
    • Rules of engagement
    • Methods
  • Part 2 – Breakout Sessions
    • Small group discussion over key topics related to Model Management
    • Summarize best practices, briefings, observations, findings, lessons learned per topic
  • Part 3 – Group discussion
    • Out brief from each breakout team
    • Group discussion on general topics pertaining to Model Management
  • Post Conference
    • Synthesize the best practices, observations, findings, lessons learned and recommendations as a deliverable report to attendees
    • Incorporate recommendations into next revision of MPM Guide
Leads Misak Zeitlyan and Jordan Howie, The Aerospace Corporation


Misak Zetilyan is a Senior Project Engineer at the Aerospace Corporation, speciating in Digital Engineering Transformation and Systems of Systems Engineering. He has over 15 years of experience in software and hardware design, development, and testing. He has led the developed software and hardware for satellites, military and commercial aircraft, as well as implantable biomedical devices.

Jordan Howie is a member of technical staff in the Agile Systems Engineering Planning & Analysis Department at The Aerospace Corporation. His current focus is on data centricity and the transitioning of processes from document-based to model-based in efforts to assist customers in achieving a digital engineering environment. Jordan is currently finishing up his Master of Science degree in Systems Engineering.


Working Group F Outbrief
Misak Zeitlyan and Jordan Howie, The Aerospace Corporation
Best Practices for Model Portfolio Management (MPM) Working Group
Misak Zetilyan and Jordan Howie, The Aerospace Corporation