The ORION project is developing a decision support tool prototype called COACH (an acronym for Component Option Analysis in Cooperation with Humans), where the different research results of the project are integrated and validated, including different decision processes, estimation methods, and context models.

The software is available as open source on GitHub (

A public instance of COACH was setup to allow other researchers and practitioners to experiment with the tool without having to install any software, but this instance is no longer maintained.

The GRADE taxonomy, developed within the project, provides a structured way of characterising decisions for software-intensive systems through the lenses of five top-level elements, namely Goals (G), Roles (R), Assets (A), Decision methods and criteria (D) and Environment (E). These five elements are refined in detail to provide a common terminology that can be used by researchers and practitioners to document decisions and identify appropriate elements that could affect decisions during the decision-making process.

Try out describing your architectural design decision cases using the GRADE canvas, available for download in: 1) MS Word, 2) PDF.

PROMOpedia is an online encyclopedia of software PROperty MOdels based on a web-content management system, offering a central point where software qualities and their evaluation methods are collected.

More information is available at the PROMOpedia website (

Findings from ORION are primarily reported through scientific publications, but we also share our results at workshops and dedicated industry days. Furthemore, we develop COACH under an open source licence.