Although exploring alternatives is fundamental to creating better interface designs, current processes for creating alternatives are generally manual, limiting the alternatives a designer can explore. We present Scout, a system that helps designers rapidly explore alternatives through mixed-initiative interaction with high-level constraints and design feedback. Prior constraint-based layout systems use low-level spatial constraints and generally produce a single design. Tosupport designer exploration of alternatives, Scout introduces high-level constraints based on design concepts (e.g.,~semantic structure, emphasis, order) and formalizes them into low-level spatial constraints that a solver uses to generate potential layouts. In an evaluation with 18 interface designers, we found that Scout: (1) helps designers create more spatially diverse layouts with similar quality to those created with a baseline tool and (2) can help designers avoid a linear design process and quickly ideate layouts they do not believe they would have thought of on their own.

中文翻译：

---

Scout：通过高级设计约束快速探索界面布局替代方案

尽管探索替代方案是创建更好界面设计的基础，但当前创建替代方案的过程通常是手动的，这限制了设计人员可以探索的替代方案。我们展示了 Scout，这是一个系统，通过与高级约束和设计反馈的混合主动交互，帮助设计师快速探索替代方案。先前基于约束的布局系统使用低级空间约束并且通常产生单一设计。为了支持设计师探索替代方案，Scout 引入了基于设计概念（例如，语义结构、重点、顺序）的高级约束，并将它们形式化为求解器用于生成潜在布局的低级空间约束。在对 18 位界面设计师的评估中，我们发现 Scout：