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CASES is a software package for collecting survey data based on structured questionnaires, using telephone or face-to-face interviewing,

web surveys

, as well as self-administered procedures.  It was developed, distributed and supported by the Computer-assisted Survey Methods (CSM) Program at the University of California, Berkeley until the end of 2014. Beginning in 2015, CSM is managed and supported by the Institute for Scientific Analysis, a private non-profit organization, under an exclusive license agreement with the University of California.

CSM is a not-for-profit program that is dedicated to enhancing the use of information technology within survey-related organizations in the academic, governmental, and private sectors. CSM also produces SDA, a software package for the documentation and Web-based analysis of survey data.

For over 30 years, CASES has been one of the most frequently used systems in the United States and has been used in several countries around the World. CASES is backed by a dedicated team of specialists whose continuing activities are primarily supported by the Association for Computer-assisted Surveys (ACS), an international consortium of survey-related organizations.  


  • Can be used for telephone interviewing (CATI), personal interviewing (CAPI), self-administered questionnaires (CASAQ/Audio-CASI), Web-based interviewing (CAWI), and data entry from paper (CADE)
  • Provides options for designers to:
    • Create forms (questions/answers) in a text-based language, which are automatically converted into graphical forms
    • Create graphical forms directly in a visual Instrument Development Environment (IDE), or
    • Use a combination of both procedures in the same instrument
  • Gives the designer a high degree of flexibility in the style and format in which questions are displayed, whether they are defined by text or visually
  • Can handle very large numbers of cases, variables, and simultaneous users
  • Can read and write external files and execute programs outside CASES via external calls
  • Does not require knowledge of standard programing language
  • Is a powerful software package at a reasonable price
  • Is supported by a dedicated and responsive support staff


  • Support for complex instrument logic
  • Multi-mode data collection with one instrument
  • Flexible automatic scheduling
  • Preload sample data
  • Rostered data
  • Paradata collection
  • Randomized question and response ordering
  • Multi-language capability including Unicode support
  • Direct data entry with verification
  • Independent data coding and cleaning modes
  • Access to historic call record data
  • More

CSM Program, Institute for Scientific Analysis
725 El Cerrito Plaza
El Cerrito, CA 94530-9701
510-705-1050 or

Last modified: July 16, 2019