  Sketching is an important activity for understanding, designing, and
communicating different aspects of software systems such as their requirements
or architecture. Often, sketches start on paper or whiteboards, are revised,
and may evolve into a digital version. Users may then print a revised sketch,
change it on paper, and digitize it again. Existing tools focus on a paperless
workflow, i.e., archiving analog documents, or rely on special hardware - they
do not focus on integrating digital versions into the analog-focused workflow
that many users follow. In this paper, we present the conceptual design and a
prototype of LivelySketches, a tool that supports the "round-trip" lifecycle of
sketches from analog to digital and back. The proposed workflow includes
capturing both analog and digital sketches as well as relevant context
information. In addition, users can link sketches to other related sketches or
documents. They may access the linked artifacts and captured information using
digital as well as augmented analog versions of the sketches. We further
present results from a formative user study with four students and outline
possible directions for future work.
