Using Flow Maps to Visualize Product Attributes during Feature Configuration

During product configuration one of the main challenges is to understand the available options and the consequences of decisions, e.g., in terms of functionality (features) and other characteristics (attributes) of the product. In this paper, we aim to provide support for understanding consequences of configuration decisions, focussing in particular on numerical product attributes resulting from these decisions. To address this challenge, we introduce “Feature Flow Maps”, an interactive visualization technique, which combines treeoriented feature models and flow map visualizations. The technique allows the application engineer to simultaneously (1) perform product configuration and (2) to visually understand the resulting numerical product attributes as well as their calculation. We discuss (i) the underlying meta-model including calculation rules, and (ii) the adaptation of flow map visualizations for application in feature models including the mapping of values to visual attributes. Keywords-flow maps; feature modeling; product configuration; product line visualization;