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Minutes from meeting on 18/10/2000.

1 Minutes of Meeting, 18/10/2000 @ 2:00pm
2 Location: UKC Computer Science Meeting Room
3
4 Present: ab11, ajm4, pjm2, tdb1
5 Absent: none
6
7 This meeting was spent producing a features list for review
8 by jc. This list can be found elsewhere. The idea behind
9 this list was to summarise what the end product was going to
10 be link, from our current plans, and to ensure that it met
11 with the initial requirements of jc.
12
13 Also produced was a revised diagram of the system, taking
14 into account the following alterations from the original
15 diagram of 05/10/2000.
16
17 - Web interface scrapped.
18 It was decided that this was no longer required, since
19 any scripting language would connect directly to the
20 database to retrieve information.
21
22 - Collector/Filter redefined.
23 The collector/filter part of the server was redefined
24 such that a hierachy of them could be arranged to
25 spread the load of incoming data. Ultimately all data
26 goes through the last (and main) one, but it does at
27 least give an extra layer of organisation for the
28 administrator. ie. machines could be grouped (by
29 site?) and have their own collector/filter which
30 reports back to a central system - almost like a proxy.
31
32 - DBI (DataBase Interface) added.
33 This interface connects directly to the database, and
34 is therefore the only part of the system that need know
35 the exact workings of the database. It can also be
36 given funtionality to decide what information will be
37 stored in the database, and how it will be done.
38
39 - Clients split to "real-time" and "historic"
40 The clients are split into two groups. Firstly the
41 "real-time" clients (on the bottom left) connect
42 directly to the system via a client interface. This
43 allows the clients to receive up-to-date information
44 directly, rather than through the database. Secondly,
45 the "historic" clients connect to the database, either
46 directly or via an interface, and allow information
47 about the history of a machine to be viewed. Both of
48 these types of clients could actually be implemented in
49 one physical application, but the distinguishment has
50 been made at this level.
51 It should also be noted that the "real-time" clients
52 have information pushed to them by the server, whilst
53 the "historic" clients pull information themselves.
54
55 This system can be seen in the following diagram;
56
57 /documentation/minutes/system-20001018.gif
58
59 The meeting was concluded at 5pm.

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