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poems's Introduction

OpenMDAO POEM Process

The POEM process is the official mechanism for proposing, discussing, revising, and ultimately approving or rejecting all changes to the OpenMDAO project which effect its user interaction. The process involves writing, reading, and discussing documents called POEMs (proposal for OpenMDAO enhancement).

This process governs all API changes, feature additions, and feature removals to the OpenMDAO project. It is also recursive because it governs any changes to itself.

The process serves two primary and equally important purposes:

  1. Announce all changes to the user interface of OpenMDAO to users of the framework before they are added to the main repository

  2. Provide a mechanism for external users to propose changes to the user interface for OpenMDAO

How does it work?

The rules are described in the POEM_000.md document in this repository. The OpenMDAO POEMs repository (i.e. this repo) contains a full record of all POEMs submitted, starting November 1st, 2019. Both the core development team and external users participate, and input on any POEM is welcome from any user at any time.

How can I keep up to date on POEMs?

All POEM activity is managed within this repository, via PRs and comments to those PRs. The best way to track that activity is to star and watch this repository. That way, github's built in notification system to get emails when things are changing. Github has lots of great docs on this!

List of POEMs

POEM ID Title Author Status
000 POEM Purpose and Guidelines Justin S. Gray integrated
001 Units update for better astrodynamics support Rob Falck integrated
002 New capability for user to send a termination signal to an OpenMDAO process so that SNOPT in pyoptsparse can terminate cleanly. Kenneth-T-Moore integrated
003 Allowing addition of I/O during Configure Anil Yildirim; Justin Gray; Rob Falck integrated
004 Creating Interpolant Class For 1D Splines DKilkenny integrated
005 An OpenMDAO Plugin System naylor-b integrated
006 Re-work the user experience in the N2 diagram Herb Schilling integrated
007 String Compatibility for ExternalCodeComp and ExternalCodeImplicitComp Command Options Danny Kilkenny integrated
008 Nonlinear Solver Refactor Danny Kilkenny integrated
009 setup/configure API Changes Rob Falck rejected
010 add argument recordable to options.declare Rob Falck integrated
011 Expand problem recording options Rob Falck; Herb Schilling integrated
012 Give the user the option to select the LAPACK driver for use in the SVD used in KrigingSurrogate Herb Schilling integrated
013 Unit conversion enhancements Rob Falck integrated
014 Removal of XDSM viewer to be replaced by third-party plugin Rob Falck integrated
015 Automatic creation of IndepVarComp outputs for all unconnected inputs justingray integrated
016 Linear algebra components can perform multiple calculations. Rob Falck integrated
017 User can specify units when adding design variables, constraints, and objectives. Kenneth-T-Moore integrated
018 indices and src_indices can contain slices Kenneth-T-Moore integrated
019 Random Vectors in Directional Derivatives Kevin Jacobson integrated
020 KSComp option to automatically add corresponding constraint Rob Falck integrated
021 _post_configure moved to public API Rob Falck rejected
022 POEM 022: Shape inputs/outputs by connection or copy from another component variable Josh Anibal requesting decision
023 Remove reconfigure code from the current code base Bret Naylor integrated
024 Calculating ExecComp Jacobian with symbolic derivatives Péter Onódi rejected
025 allow GA to seek pareto frontier Kenneth-T-Moore accepted
026 Remove support for factorial function in ExecComp swryan accepted
027 Approximation flag and state tracking johnjasa accepted
029 Retrieval of IO Variable Metadata Bret Naylor integrated
031 Improved Aitken Relaxation justinsgray integrated
033 Linear Constraints in Check Totals justinsgray accepted

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