COMMON KNOWLEDGE: PITTSBURGH

Oberon Login Data, For Period 09/06/93 -- 07/11/94


	1. All User[1] -- School Time Period (M-F: 7 am -- 4 pm)[2]

		Login Duration is Less Than 10 Hours[3]

	
	   Week         User#   AvgT    StdT    MaxT    TotalT
	
	06-Sep-1993       43    24.31   56.43   511       5926
	13-Sep-1993       54    32.22   68.83   509       8350
	20-Sep-1993       67    24.12   59.62   487      10971
	27-Sep-1993       71    25.21   53.11   435       9885
	04-Oct-1993      103    21.93   53.21   545      13749
	11-Oct-1993      117    23.12   55.93   537      14972
	18-Oct-1993      113    24.92   54.32   501      15702
	25-Oct-1993      115    24.42   55.93   506      16760
	01-Nov-1993      117    25.63   52.72   480      16817
	08-Nov-1993      115    24.00   52.94   442      13462
	15-Oct-1993      131    28.72   63.21   501      22004
	22-Nov-1993      119    26.32   55.93   412      12866
	29-Nov-1993      143    26.83   56.93   529      21722
	06-Dec-1993      149    26.11   60.12   556      20326
	13-Dec-1993      150    26.32   57.63   466      22502  
	20-Dec-1993      114    21.92   47.82   424       8542
	27-Dec-1993       65    22.80   34.25   195       4172
	03-Jan-1994       92    30.72   65.24   483       9307
	10-Jan-1994      139    26.98   55.14   446      17917
	17-Jan-1994      105    23.63   38.00   426       6854
	24-Jan-1994      141    25.69   55.76   447      17802
	31-Jan-1994      152    31.42   63.14   561      19353
	07-Feb-1994      136    21.09   42.14   346      11895
	14-Feb-1994      154    22.59   39.86   267      15947
	21-Feb-1994      152    23.24   43.04   405      15107
	28-Feb-1994      195    23.96   49.76   597      17632
	07-Mar-1994      197    24.75   49.15   544      20666
	14-Mar-1994      194    23.41   36.68   344      17720
	21-Mar-1994      222    21.95   34.96   376      18219
	28-Mar-1994      184    21.57   33.43   388      14644
	04-Apr-1994      104    17.01   29.16   240       6275
	11-Apr-1994      168    25.34   53.03   458      19186
	18-Apr-1994      218    24.74   47.15   441      21675
	25-Apr-1994      224    25.76   44.79   389      22180 
	02-May-1994      225    25.68   44.55   440      23603
	09-May-1994      191    24.64   44.88   508      21409
	16-May-1994      205    22.71   39.69   428      18053
	23-May-1994      214    23.28   42.87   408      19652
	30-May-1994      205    21.98   37.81   338      15606
	06-Jun-1994      184    22.55   33.43   490      18355
	13-Jun-1994      186    23.71   45.20   399      19465
	20-Jun-1994      175    24.76   47.96   517      16068
	27-Jun-1994      157    19.41   41.93   381      10425
	04-Jul-1994      111    20.56   40.72   465       7710

	User#: The number of users in a week (no duplicate user).
	AvgT: Average login duration per operation in a week (MINUTE).
	StdT: Standard deviation of login duration.
	MaxT: Maximum login duration in a week (MINITE).
	TotalT: Total login duration in a week (MINUTE).


	******************************************************************


	2.  All Use -- Non Working Time Period  (M-F: 0 am -- 7 am)
						 (M-F: 4 pm -- 0 am)
						 (Sat-Sun & Holiday)

	   Week         User#   AvgT    StdT    MaxT    TotalT

	06-Sep-1993       52    20.62   40.82   445       6322
	13-Sep-1993       67    19.10   34.33   244       6765
	20-Sep-1993       57    20.52   32.63   263       6296
	27-Sep-1993       74    20.31   38.12   397       7333
	04-Oct-1993       88    20.53   41.21   410      10096
	11-Oct-1993       80    19.43   33.82   290       9717
	18-Oct-1993       96    21.72   43.22   497      11509
	25-Oct-1993       93    21.32   34.72   328      11014
	01-Nov-1993       92    20.12   30.83   321      10814
	08-Nov-1993       99    22.93   42.32   559      13671
	15-Oct-1993      114    22.51   40.11   394      20183
	22-Nov-1993      112    27.63   52.21   577      17228
	29-Nov-1993      121    26.82   46.92   374      19016
	06-Dec-1993      126    25.11   52.21   522      18747
	13-Dec-1993      128    21.72   41.21   417      16073
	20-Dec-1993      114    22.21   34.21   304      15558
	27-Dec-1993       88    22.06   32.26   216      11893
	03-Jan-1994       94    24.73   40.67   346      12092
	10-Jan-1994      115    25.18   43.28   509      17326
	17-Jan-1994      116    23.35   38.80   473      16365
	24-Jan-1994      124    23.32   41.47   511      17836
	31-Jan-1994      119    23.11   38.54   414      17725
	07-Feb-1994      125    22.08   65.24   461      17550
	14-Feb-1994      128    21.96   36.40   328      18535
	21-Feb-1994      128    21.96   36.40   328      18535
	28-Feb-1994      148    23.51   42.36   466      21844
	07-Mar-1994      148    19.44   31.87   347      19946
	14-Mar-1994      144    19.53   38.21   529      17983
	21-Mar-1994      141    19.94   33.28   387      16471
	28-Mar-1994      153    20.09   30.56   243      17295
	04-Apr-1994      154    20.13   39.77   556      22221
	11-Apr-1994      206    22.83   34.40   352      25765
	18-Apr-1994      175    22.24   34.06   398      22085
	25-Apr-1994      205    22.99   32.77   324      27387
	02-May-1994      192    23.18   36.04   370      27497
	09-May-1994      198    22.01   28.61   264      26429
	16-May-1994      190    22.47   38.13   526      21978
	23-May-1994      170    21.41   30.40   304      17645
	30-May-1994      169    23.20   37.05   446      21136
	06-Jun-1994      172    22.97   36.22   529      22397
	13-Jun-1994      166    17.98   34.76   335      17101
	20-Jun-1994      168    20.53   30.34   454      17984
	27-Jun-1994      172    21.87   41.34   458      17805
	04-Jul-1994      154    22.80   35.05   339      16528

	*****************************************************************


	3.  Teachers -- School Time Period (M-F: 7 am -- 4 pm) 

	
	   Week         User#   AvgT    StdT    MaxT    TotalT

	06-Sep-1993       18    15.12   20.21    88       1045
	13-Sep-1993       23    19.71   52.52   399       1614
	20-Sep-1993       28    23.82   56.21   400       3152
	27-Sep-1993       26    21.33   38.72   186       1787
	04-Oct-1993       33    22.11   59.83   498       3252
	11-Oct-1993       39    19.72   48.00   377       3907
	18-Oct-1993       35    31.72   68.42   492       4504
	25-Oct-1993       46    25.11   51.94   370       4984
	01-Nov-1993       35    25.83   62.83   480       4254
	08-Nov-1993       40    31.53   69.21   442       4184
	15-Oct-1993       50    31.72   68.00   501       7778
	22-Nov-1993       46    27.62   55.12   360       4305
	29-Nov-1993       59    29.21   56.32   393       7418
	06-Dec-1993       60    32.72   77.12   556       8015
	13-Dec-1993       51    27.72   67.73   466       7480
	20-Dec-1993       46    31.20   65.20   424       3410
	27-Dec-1993       32    21.40   31.05   195       2311
	03-Jan-1994       43    34.68   76.49   483       3641
	10-Jan-1994       69    32.42   67.33   446      10927
	17-Jan-1994       52    27.45   47.70   426       3843
	24-Jan-1994       70    33.58   69.72   447       9605
	31-Jan-1994       78    37.58   75.41   561      12627
	07-Feb-1994       75    23.51   48.19   346       6744
	14-Feb-1994       79    25.32   44.32   267       8382
	21-Feb-1994       82    28.12   51.29   405       9393
	28-Feb-1994       94    26.79   51.48   397      10099
	07-Mar-1994       91    28.27   59.09   544      12580
	14-Mar-1994       79    25.31   42.49   344       9770
	21-Mar-1994       99    21.87   39.92   376       8922
	28-Mar-1994       82    25.01   50.13   388       8654
	04-Apr-1994       57    46.05   26.22   240       3197
	11-Apr-1994       93    28.06   56.98   392      12348
	18-Apr-1994      106    24.57   49.99   441       9903
	25-Apr-1994      108    30.28   50.93   389      12656    
	02-May-1994      106    27.89   50.92   440      12218
	09-May-1994      116    26.60   48.80   508      12769
	16-May-1994      106    24.88   44.81   428      10299
	23-May-1994       96    25.47   47.80   408      10393
	30-May-1994      102    23.04   40.57   296       8639
	06-Jun-1994       98    23.36   46.02   490       9203
	13-Jun-1994      113    25.26   48.88   368      10257
	20-Jun-1994       97    25.30   48.07   423       7893
	27-Jun-1994       95    18.19   44.97   381       5453
	04-Jul-1994       71    15.77   24.02   170       3423

	****************************************************************


	4. Teachers -- Non Working Time Period  (M-F: 0 am -- 7 am)
						 (M-F: 4 pm -- 0 am)
						 (Sat-Sun & Holiday)


	   Week         User#   AvgT    StdT    MaxT    TotalT

	06-Sep-1993       24    22.61   31.55   246       1719
	13-Sep-1993       36    18.42   33.62   267       3878
	20-Sep-1993       32    18.21   27.22   179       2816
	27-Sep-1993       34    21.71   45.92   397       3076
	04-Oct-1993       37    16.52   27.61   225       3126
	11-Oct-1993       35    19.21   34.62   278       4176
	18-Oct-1993       42    24.82   49.81   362       5312
	25-Oct-1993       41    25.51   40.21   279       5168
	01-Nov-1993       36    17.31   31.12   248       4069
	08-Nov-1993       46    20.72   31.22   248       4069
	15-Oct-1993       42    28.21   43.92   268       7595
	22-Nov-1993       46    29.92   55.41   577       8129
	29-Nov-1993       54    33.92   52.72   370       9763
	06-Dec-1993       63    26.70   46.42   359       9537
	13-Dec-1993       61    19.42   34.33   336       6644
	20-Dec-1993       49    22.71   40.92   179       6325
	27=Dec-1993       50    25.01   45.99   216       7829
	03-Jan-1994       53    25.94   32.04   346       8120
	10-Jan-1994       69    26.90   47.66   509      11969
	17-Jan-1994       66    24.54   48.72   473      10601
	24-Jan-1994       65    26.32   48.45   511      11898
	31-Jan-1994       67    23.82   43.18   481      10601
	07-Feb-1994       66    22.92   42.41   461      10863
	14-Feb-1994       73    23.39   38.35   366      10946
	21-Feb-1994       78    21.96   37.99   328      11989
	28-Feb-1994       84    25.76   47.82   466      15664
	07-Mar-1994       89    20.13   29.24   313      13165
	14-Mar-1994       88    17.29   25.06   226       9616
	21-Mar-1994       84    21.88   36.71   387      11727
	28-Mar-1994       96    22.33   33.71   231      11523
	04-Apr-1994       91    21.49   45.61   556      14227
	11-Apr-1994      140    25.29   38.56   352      19575
	18-Apr-1994      112    23.94   37.01   398      16569
	25-Apr-1994      139    24.44   35.11   324      21288
	02-May-1994      121    25.56   38.07   335      19197
	09-May-1994      134    23.57   30.36   264      19661
	16-May-1994      117    21.42   34.56   370      14284
	23-May-1994      106    22.31   30.50   220      12358
	30-May-1994      108    23.54   36.22   289      15159
	06-Jun-1994      111    22.11   35.17   529      14594
	13-Jun-1994      111    18.05   29.52   256      11735
	20-Jun-1994      106    20.83   35.12   454      11748
	27-Jun-1994      113    20.84   31.60   394      12128
	04-Jul-1994      100    24.33   33.26   250      10707

	***************************************************************


	5.  Students -- School Time Period (M-F: 7 am -- 4 pm) 

	
	   Week         User#   AvgT    StdT    MaxT    TotalT

	06-Sep-1993        2    30.01   19.02    49         60
	13-Sep-1993        0     0       0        0          0
	20-Sep-1993        1    10.30    5.81    18         31
	27-Sep-1993        2    23.01   16.74    50        161
	04-Oct-1993        1    18.33   10.92    36        202
	11-Oct-1993        3    20.72   32.32   104        166
	18-Oct-1993        9    13.73   18.11    82        247    
	25-Oct-1993        3    18.33   17.81    67        256
	01-Nov-1993        5    20.91   59.81   333        629
	08-Nov-1993        4     7.11    6.93    25        163
	15-Oct-1993        4    13.51   15.31    54        135
	22-Nov-1993        5    28.92   62.92   315        724
	29-Nov-1993        4    26.62   59.82   248        399
	06-Dec-1993        7    26.82   49.31   212        805
	13-Dec-1993       14    12.41   14.12    78        919
	20-Dec-1993        6    11.51    9.12    37        370
	27-Dec-1993        3    43.67   64.86   145        454
	03-Jan-1994       13    13.61   13.66   138        498
	10-Jan-1994       22    16.26   18.33    92       1301
	17-Jan-1994        7    20.13   14.03    54        483
	24-Jan-1994       18    17.13   34.70   376       2484
	31-Jan-1994       21    26.96   49.74   338       2211
	07-Feb-1994       15    18.13   22.40   117       1088
	14-Feb-1994       16    25.28   41.52   223       2831
	21-Feb-1994       13    22.78   46.70   324       1162
	28-Feb-1994       44    15.76   22.69   205       2333
	07-Mar-1994       48    26.09   38.64   336       3496
	14-Mar-1994       62    26.32   23.14   119       3580
	21-Mar-1994       62    26.89   27.27   132       4249
	28-Mar-1994       52    22.17   19.48   100       2549
	04-Apr-1994        5    26.82   38.36   152        456
	11-Apr-1994       21    20.47   39.96   357       2047
	18-Apr-1994       49    28.46   44.21   312       6147
	25-Apr-1994       54    22.92   33.34   254       3920
	02-May-1994       55    19.81   26.00   185       4696
	09-May-1994       16    21.87   25.07   146       2121
	16-May-1994       38    18.02   25.79   142       2451
	23-May-1994       49    27.21   42.73   264       4734
	30-May-1994       44    20.96   25.00   172       2348
	06-Jun-1994       31    20.62   34.93   223       2949
	13-Jun-1994       17    23.06   33.21   215       3413
	20-Jun-1994        9    33.77   32.51   130       2026
	27-Jun-1994        6    31.42   42.76   169       1194
	04-Jul-1994        5    23.15   29.62   139        926

	***************************************************************


	6. Students -- Non Working Time Period  (M-F: 0 am -- 7 am)
						 (M-F: 4 pm -- 0 am)
						 (Sat-Sun & Holiday)


	   Week         User#   AvgT    StdT    MaxT    TotalT

	06-Sep-1993        1     2.00    0        2          2
	13-Sep-1993        0     0       0        0          0
	20-Sep-1993        0     0       0        0          0
	27-Sep-1993        0     0       0        0          0
	04-Oct-1993        2     0       0        0          0
	11-Oct-1993        2     6.91    8.53    23         30
	18-Oct-1993        4    24.91   25.73    88        249
	25-Oct-1993        3     7.52   11.21    41        112
	01-Nov-1993        3    13.11   17.12    75        263
	08-Nov-1993        4    10.12   10.31    34        221
	15-Oct-1993        4    10.12    8.71    35        221
	22-Nov-1993        3     9.51    9.53    28        124
	29-Nov-1993        1     9.31    8.42    34        176
	06-Dec-1993        3     4.92    4.00    15         99
	13-Dec-1993        3     6.82   10.30    44        144
	20-Dec-1993        3     8.31    5.11    19         75
	27-Dec-1993        3    15.66   33.15   145        454
	03-Jan-1994        5    35.57   43.17   138        498
	10-Jan-1994        5    34.79   46.54   235       1148
	17-Jan-1994        6    20.38   28.87   162       1386
	24-Jan-1994        7    23.74   39.45   162       1472
	31-Jan-1994        6    29.29   39.05   188       1816
	07-Feb-1994        7    22.91   22.42   102       1512
	14-Feb-1994        7    24.46   30.93   186       1370
	21-Feb-1994        4    19.71   26.72   126       1222
	28-Feb-1994       11    18.43   21.78   105       1235
	07-Mar-1994        9    19.25   31.55   200        924
	14-Mar-1994        7    18.77   23.60   145       1239
	21-Mar-1994        8    16.45   19.50    84        543
	28-Mar-1994        8    18.17   21.72    85       1163
	04-Apr-1994        7    26.49   31.53   152       1139
	11-Apr-1994        9    14.65   16.07    79        967
	18-Apr-1994        8    18.21   32.51   193        874
	25-Apr-1994        7    15.40   15.27    55        847
	02-May-1994        7    28.71   28.32   121       2641
	09-May-1994        7    16.86   22.06   117       1248
	16-May-1994       11    29.24   41.82   202       1725
	23-May-1994        6    32.31   48.60   304       1971
	30-May-1994        7    41.27   68.00   446       2600
	06-Jun-1994        6    40.63   70.82   488       3535
	13-Jun-1994        5    26.42   34.05   141       1691
	20-Jun-1994        6    42.47   50.70   225       2166
	27-Jun-1994        5    42.10   76.09   458       2021
	04-Jul-1994        7    33.71   52.81   339       2562

	***************************************************************

Notes to Tables: 


[1]  "All users" includes PPS teachers, librarians, aides, 
     administrators, support personnel, staff, students and a few 
     "guests", and excludes CK:P staff accounts.

[2]  Usage was divided by school hours and non-hours to show the
     extent to which users access their accounts on their own time
     versus during working hours.

[3]  Logins greater than 10 hours were excluded because these
     were rare and usually represented user error (e.g., faulty
     setup of communications software) or system error.  A check 
     of logins which is great than 10 hours for a six-month period
     (Jan. - July, 1994) showed 42 users with the following breakdown:
     teachers - 26, students - 5, PPS staff - 4, CK:P staff - 3,
     PPS administrators - 3, other - 1.


	****************************************************************


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