[LON-CAPA-cvs] cvs: nsdl /doc behavior.fig
harris41
lon-capa-cvs@mail.lon-capa.org
Sun, 05 May 2002 02:30:29 -0000
harris41 Sat May 4 22:30:29 2002 EDT
Added files:
/nsdl/doc behavior.fig
Log:
Description of general behavior....
Note that there was some initial confusion
which is reflected in this diagram.
I should emphasize that the gateway may
actively solicit the NSDL servers for whether
there be content changes (assumingly to trust
the metadata as opposed to download and checksum
content) and pass this information onto the
LON-CAPA servers. The Gateway Server is NOT a central
repository for downloaded content from NSDL.
It merely negotiates the transaction by which
NSDL content is transferred to and delivered
by a LON-CAPA server in an educational context.
Index: nsdl/doc/behavior.fig
+++ nsdl/doc/behavior.fig
#FIG 3.2
Landscape
Center
Inches
Letter
100.00
Single
-2
1200 2
6 375 6075 10125 8625
6 750 6525 3300 6975
4 0 0 50 0 17 12 0.0000 4 180 2520 750 6675 receive OAI harvesting request\001
4 0 0 50 0 17 12 0.0000 4 180 1680 750 6900 for metadata pattern\001
-6
6 3525 7425 7125 8625
6 3750 7575 6975 8400
4 0 0 50 0 18 12 0.0000 4 135 2985 3750 7725 Poll the other LON-CAPA servers\001
4 0 0 50 0 18 12 0.0000 4 180 3075 3750 7950 for responses to the availability of\001
4 0 0 50 0 18 12 0.0000 4 135 3165 3750 8175 a /res/DOMAIN/... data or metadata\001
4 0 0 50 0 18 12 0.0000 4 105 780 3750 8400 resource\001
-6
2 4 0 1 0 0 50 0 -1 0.000 0 0 12 0 0 5
7125 8625 3525 8625 3525 7425 7125 7425 7125 8625
-6
6 675 7800 3300 8175
4 0 0 50 0 17 12 0.0000 4 180 2520 675 7950 receive OAI harvesting request\001
4 0 0 50 0 17 12 0.0000 4 135 2580 675 8175 for metadata record or resource\001
-6
6 6150 6525 8625 6975
4 0 0 50 0 17 12 0.0000 4 180 2475 6150 6675 respond with OAI query result\001
4 0 0 50 0 17 12 0.0000 4 180 1215 6150 6900 (i.e. record list)\001
-6
6 6000 6900 7875 7050
6 7725 6900 7875 7050
1 2 0 1 0 0 50 0 -1 0.000 1 0.0000 7800 6975 75 75 7725 6900 7875 7050
1 2 0 1 0 0 50 0 20 0.000 1 0.0000 7797 6974 37 37 7760 6937 7835 7012
-6
2 1 0 1 0 0 50 0 20 0.000 0 0 -1 1 0 2
1 1 1.00 90.00 135.00
6000 6975 7725 6975
-6
6 7350 7800 10125 8250
4 0 0 50 0 17 12 0.0000 4 180 2475 7350 7950 respond with OAI query result\001
4 0 0 50 0 17 12 0.0000 4 180 2715 7350 8175 (i.e. metadata record or resource)\001
-6
6 7125 8250 9000 8400
6 8850 8250 9000 8400
1 2 0 1 0 0 50 0 -1 0.000 1 0.0000 8925 8325 75 75 8850 8250 9000 8400
1 2 0 1 0 0 50 0 20 0.000 1 0.0000 8922 8324 37 37 8885 8287 8960 8362
-6
2 1 0 1 0 0 50 0 20 0.000 0 0 -1 1 0 2
1 1 1.00 90.00 135.00
7125 8325 8850 8325
-6
6 3600 6675 6000 7125
4 0 0 50 0 18 12 0.0000 4 135 1500 3600 6825 Search the other\001
4 0 0 50 0 18 12 0.0000 4 180 2370 3600 7050 LON-CAPA library servers\001
-6
1 2 0 1 0 0 50 0 20 0.000 1 0.0000 450 6975 75 75 375 6900 525 7050
1 2 0 1 0 0 50 0 20 0.000 1 0.0000 450 8250 75 75 375 8175 525 8325
2 1 0 1 0 0 50 0 -1 0.000 0 0 -1 1 0 2
1 1 1.00 90.00 135.00
450 6975 3525 6975
2 1 0 1 0 0 50 0 -1 0.000 0 0 -1 1 0 2
1 1 1.00 90.00 135.00
450 8250 3525 8250
2 4 0 1 0 7 50 0 -1 0.000 0 0 12 0 0 5
6005 7200 3525 7200 3525 6600 6005 6600 6005 7200
4 0 0 50 0 18 12 0.0000 4 180 4320 375 6225 GATEWAY FEATURE: Provide for OAI harvesting\001
-6
6 375 4650 7500 5700
6 675 5025 2850 5400
4 0 0 50 0 17 12 0.0000 4 180 1965 675 5175 receive resource request\001
4 0 0 50 0 17 12 0.0000 4 135 2130 675 5400 from LON-CAPA network\001
-6
6 3375 5175 5400 5550
4 0 0 50 0 18 12 0.0000 4 135 1965 3375 5325 Access internal mirror\001
4 0 0 50 0 18 12 0.0000 4 135 1575 3375 5550 of NSDL archives\001
-6
6 5625 5400 7500 5550
6 7350 5400 7500 5550
1 2 0 1 0 0 50 0 -1 0.000 1 0.0000 7425 5475 75 75 7350 5400 7500 5550
1 2 0 1 0 0 50 0 20 0.000 1 0.0000 7422 5474 37 37 7385 5437 7460 5512
-6
2 1 0 1 0 0 50 0 20 0.000 0 0 -1 1 0 2
1 1 1.00 90.00 135.00
5625 5475 7350 5475
-6
1 2 0 1 0 0 50 0 20 0.000 1 0.0000 450 5475 75 75 375 5400 525 5550
2 1 0 1 0 0 50 0 20 0.000 0 0 -1 1 0 2
1 1 1.00 90.00 135.00
450 5475 3225 5475
2 4 0 1 0 7 50 0 -1 0.000 0 0 12 0 0 5
5625 5700 3225 5700 3225 5100 5625 5100 5625 5700
4 0 0 50 0 18 12 0.0000 4 135 5565 375 4800 GATEWAY FEATURE: Allow for use within educational network\001
4 0 0 50 0 17 12 0.0000 4 180 1245 5775 5400 answer request\001
-6
6 375 750 8625 4125
6 450 1050 2625 1725
4 0 0 50 0 17 12 0.0000 4 180 2085 450 1200 to be potentially replaced\001
4 0 0 50 0 17 12 0.0000 4 180 1875 450 1425 in the future by Cornell\001
4 0 0 50 0 17 12 0.0000 4 180 2145 450 1650 central repository strategy\001
-6
6 3000 1050 8625 3450
6 4800 1125 7050 1500
4 0 0 50 0 18 12 0.0000 4 135 2175 4800 1500 mirror of NSDL archives\001
4 0 0 50 0 18 12 0.0000 4 180 2190 4800 1275 Update gateway internal\001
-6
6 3150 1800 8475 3300
6 5700 1875 7650 2175
2 4 0 1 0 0 50 0 -1 0.000 0 0 7 0 0 5
7650 2175 7650 1875 5700 1875 5700 2175 7650 2175
4 0 0 50 0 18 12 0.0000 4 135 1815 5775 2100 OAI server available\001
-6
6 3300 2250 5625 2550
2 4 0 1 0 0 50 0 -1 0.000 0 0 7 0 0 5
5625 2550 5625 2250 3300 2250 3300 2550 5625 2550
4 0 0 50 0 18 12 0.0000 4 135 2220 3375 2475 Mirror has list of records\001
-6
6 5700 2625 8475 2925
2 4 0 1 0 0 50 0 -1 0.000 0 0 7 0 0 5
8475 2925 8475 2625 5700 2625 5700 2925 8475 2925
4 0 0 50 0 18 12 0.0000 4 135 2610 5775 2850 Mirror has a metadata record\001
-6
6 3675 3000 5700 3300
2 4 0 1 0 0 50 0 -1 0.000 0 0 7 0 0 5
5700 3300 5700 3000 3675 3000 3675 3300 5700 3300
4 0 0 50 0 18 12 0.0000 4 135 1920 3750 3225 Mirror has a resource\001
-6
6 3150 3075 3300 3225
1 2 0 1 0 0 50 0 -1 0.000 1 0.0000 3225 3150 75 75 3150 3075 3300 3225
1 2 0 1 0 0 50 0 20 0.000 1 0.0000 3222 3149 37 37 3185 3112 3260 3187
-6
1 2 0 1 0 0 50 0 20 0.000 1 0.0000 3750 2025 75 75 3675 1950 3825 2100
2 1 0 1 0 0 50 0 -1 0.000 0 0 -1 1 0 2
1 1 1.00 90.00 135.00
3750 2025 5700 2025
2 1 0 1 0 0 50 0 -1 0.000 0 0 -1 1 0 4
1 1 1.00 90.00 135.00
7650 2025 8475 2025 8475 2475 5625 2475
2 1 0 1 0 0 50 0 -1 0.000 0 0 -1 1 0 4
1 1 1.00 90.00 135.00
3300 2475 3225 2475 3225 2850 5700 2850
2 1 0 1 0 0 50 0 -1 0.000 0 0 -1 1 0 3
1 1 1.00 90.00 135.00
7200 2925 7200 3225 5700 3225
2 1 0 1 0 0 50 0 -1 0.000 0 0 -1 1 0 2
1 1 1.00 90.00 135.00
3675 3150 3300 3150
4 0 0 50 0 17 12 0.0000 4 180 2595 5775 2400 request list of metadata records\001
4 0 0 50 0 17 12 0.0000 4 180 1170 4425 2775 request record\001
4 0 0 50 0 17 12 0.0000 4 180 1350 5775 3150 request resource\001
4 0 0 50 0 17 12 0.0000 4 135 1545 3975 1950 contact OAI server\001
-6
2 4 0 1 0 0 50 0 -1 0.000 0 0 7 0 0 5
8625 3450 8625 1050 3000 1050 3000 3450 8625 3450
2 1 0 1 0 0 50 0 -1 0.000 0 0 -1 0 0 2
3000 1650 8625 1650
4 0 0 50 0 17 12 0.0000 4 135 1050 7350 1275 with relevant\001
4 0 0 50 0 17 12 0.0000 4 180 615 7500 1500 looping\001
-6
6 4425 3600 7425 4050
4 0 0 50 0 17 12 0.0000 4 180 2955 4425 3750 notify all subscribing access servers\001
4 0 0 50 0 17 12 0.0000 4 180 870 4425 3975 of updates\001
-6
6 7500 3975 7650 4125
1 2 0 1 0 0 50 0 -1 0.000 1 0.0000 7575 4050 75 75 7500 3975 7650 4125
1 2 0 1 0 0 50 0 20 0.000 1 0.0000 7572 4049 37 37 7535 4012 7610 4087
-6
1 2 0 1 0 0 50 0 20 0.000 1 0.0000 450 2175 75 75 375 2100 525 2250
2 1 0 1 0 0 50 0 -1 0.000 0 0 -1 1 0 2
1 1 1.00 90.00 135.00
450 2175 3000 2175
2 1 0 1 0 0 50 0 -1 0.000 0 0 -1 1 0 3
1 1 1.00 90.00 135.00
4350 3450 4350 4050 7500 4050
4 0 0 50 0 18 12 0.0000 4 135 4245 450 900 GATEWAY FEATURE: Web crawl NSDL archives\001
4 0 0 50 0 17 12 0.0000 4 180 2010 675 2025 periodic (daily) updating\001
-6