The LIGA traveler: the use of technical and social invariants in software design

  • Authors:
  • William A. Stubblefield;Karen S. Rogers;Deborah S. Ingram

  • Affiliations:
  • Sandia National Laboratories, Albuquerque, NM;Sandia National Laboratories, Albuquerque, NM;Sandia National Laboratories, Albuquerque, NM

  • Venue:
  • Proceedings of the 2003 conference on Designing for user experiences
  • Year:
  • 2003

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Abstract

It is not enough for software to support individual interactions well. Everyone involved in the programís use, maintenance, and management must experience it and its designers as behaving meaningfully and responsively across the life cycleóin short, as situated in their community. Achieving this requires that designers understand the communityís deeper invariant structure: inherently stable patterns of activity, technology, information, and communication.The LIGA Traveler is an information-management tool for a micro-mechanical systems-fabrication process. It serves a specialized R&D group at Sandia National Laboratories. Supporting this community required that we understand both the pressures for change within it, and the technical and social invariants that counter those pressures. This paper discusses the process of interpreting field data to discover these invariants, and their use as a foundation for the design of the system. It also presents a set of software components we have built specifically to support our design process.