Search (5 results, page 1 of 1)

  • × author_ss:"Hert, C.A."
  • × theme_ss:"OPAC"
  1. Nilan, M.S.; Hert, C.A.: Incorporating the user in system evaluation and design (1992) 0.00 
    0.00270615 = product of:
  0.0054123 = sum of:
    0.0054123 = product of:
      0.0108246 = sum of:
        0.0108246 = weight(_text_:a in 3867) [ClassicSimilarity], result of:
          0.0108246 = score(doc=3867,freq=8.0), product of:
            0.053105544 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046056706 = queryNorm
            0.20383182 = fieldWeight in 3867, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.0625 = fieldNorm(doc=3867)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Suggests a user based approach to system design and evaluation, of computerized library systems (e.g. OPACs), which is application specific. Data was collected on 93 end user interactions with a newly implemented OPAC in a large US university library. Concludes that researchers need to explore questions relating directly to problems, faced by users and to present findings in ways which provide action oriented recommendations
    Type
    a
  2. Hert, C.A.: Information retrieval as situated action (1995) 0.00 
    0.0023435948 = product of:
  0.0046871896 = sum of:
    0.0046871896 = product of:
      0.009374379 = sum of:
        0.009374379 = weight(_text_:a in 3824) [ClassicSimilarity], result of:
          0.009374379 = score(doc=3824,freq=6.0), product of:
            0.053105544 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046056706 = queryNorm
            0.17652355 = fieldWeight in 3824, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.0625 = fieldNorm(doc=3824)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    In an inductive, qualitative study of 30 university students at University of Syracuse, USA, it was found that their OPAC interactions were a series of situated actions. By situatedness it is meant that as a user moves through an interaction, his or her actions are not completely predetermined, instead elements of the situation are utilized to determine action. Identifies and describes the set of elements used by students in determining action
    Type
    a
  3. Hert, C.A.: User goals on an online public access catalog (1996) 0.00 
    0.002269176 = product of:
  0.004538352 = sum of:
    0.004538352 = product of:
      0.009076704 = sum of:
        0.009076704 = weight(_text_:a in 4381) [ClassicSimilarity], result of:
          0.009076704 = score(doc=4381,freq=10.0), product of:
            0.053105544 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046056706 = queryNorm
            0.1709182 = fieldWeight in 4381, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046875 = fieldNorm(doc=4381)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    An ongoing thread in information retrieval research has been the exploration of user goals (or information needs, or problems) on information retrieval systems. It has been suggested that an understanding of goals and their role in the information retrieval interaction can provide insight into appropriate retrieval strategies, relevant documents, and general system design. This article reports on empirical findings concerning goals of users searching an OPAC at a northeastern United States university. These findings were generated during a large inductive and qualitative study of users' interactions with the OPAC. It was found that respondents came to the OPAC to search for a variety of course- or degree-related projects in which they were engaged. Respondent goals were not greatly modified during the course of these interactions. A set of situational elements associated with the respondent's goal was also identified. The implications of these findings for OPAC design and the training of informational professionals are discussed
    Type
    a
  4. Hert, C.A.; Nilan, M.S.: User-based information retrieval evaluation : an examination of an online public access catalog (1991) 0.00 
    0.0020506454 = product of:
  0.004101291 = sum of:
    0.004101291 = product of:
      0.008202582 = sum of:
        0.008202582 = weight(_text_:a in 3671) [ClassicSimilarity], result of:
          0.008202582 = score(doc=3671,freq=6.0), product of:
            0.053105544 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046056706 = queryNorm
            0.1544581 = fieldWeight in 3671, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3671)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Suggests that an appropriate method for evaluating information retrieval systems is to focus on the individual actions users attempts to perform on a system. The evaluation criterion 'degree of match' between attempted actions and actual system commands is one of a series of evaluation measures including perceived measures and summary measures that were investigated. Results indicate that there is the potential for significant improvement of the OPAC's interface, particularly those parts of the interface which concern searching and revision activities
    Type
    a
  5. Hert, C.A.: Information retrieval as situated action (1995) 0.00 
    0.001913537 = product of:
  0.003827074 = sum of:
    0.003827074 = product of:
      0.007654148 = sum of:
        0.007654148 = weight(_text_:a in 3317) [ClassicSimilarity], result of:
          0.007654148 = score(doc=3317,freq=4.0), product of:
            0.053105544 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.046056706 = queryNorm
            0.14413087 = fieldWeight in 3317, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.0625 = fieldNorm(doc=3317)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    In an inductive, qualitative study of 30 university students (ranging from freshmen to doctoral students), it was found that their OPAC interactions were a series of situated actions. By situatedness is meant that as a user moves through an interaction, his or her actions are not completely predetermined, instead elements of the situation are utilized to determine action. The set of elements used by students in determining action is identified and described

Types