Opportunities for bandwidth adaptation in microsoft office documents

  • Authors:
  • Eyal de Lara;Dan S. Wallach;Willy Zwaenepoel

  • Affiliations:
  • Department of Electrical and Computer Engineering, Rice University;Department of Computer Science, Rice University;Department of Computer Science, Rice University

  • Venue:
  • WSS'00 Proceedings of the 4th conference on USENIX Windows Systems Symposium - Volume 4
  • Year:
  • 2000

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Abstract

Microsoft Office, the most popular office productivity suite, produces large documents that can result in long download latencies for platforms with limited bandwidth. To reduce latency and improve the user's experience, these documents need to be adapted for transmission on a limited-bandwidth network. To identify opportunities for adaptation, we characterize documents created by three popular applications from the Microsoft Office suite: Word, PowerPoint, and Excel. Our study encompasses over 12,500 documents retrieved from 935 different Web sites. Our main conclusions are: 1) Microsoft Office documents are large and require adaptation on bandwidth-limited clients; 2) embedded objects and images account for the majority of the data in these documents, with image types being the most popular non-text, content, suggesting that adaptation efforts should focus on these elements; 3) compression considerably reduces the sized of these documents; and 4) the internal structure of these documents (pages, slides, or sheets) can be used to download elements on demand and reduce user-perceived latency.