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I'm currently undertaking research into the ecology of the IT market place.
Some of the preliminary work I have done using SNA on data mined from
textul sources on alliance partnerships has given me a preliminary view of
the market place that conceptually matches my perceptions (I have worked in
this marketplace for nearly 30 years!). Basically the major systems
integrators like IBM, EDS, CSC, Accenture etc.. are quite central, as you
would expect. An interesting group made up of companies like Microsoft,
SAP, Siebel, Cisco are also central based on their connections to multiple
"integrators". They also have had strong sharemarket performances (a key
aspect of my studies).
I now have access to a larger data with 10+ years of transacton data from
which I have been able to build a map of clients, vendors and sub contract
vendors. The problem I'm having is that the "closeness" measures that I
thought would identify the SAPs, Microsofts etc...i.e. those companies
that are "linked" to the "high degree" nodes like IBM, CSC, EDS etc.., does
not appear to be all that discriminating as my initial work. The closeness
measures seem to cluster together (in fact are identical) with big jumps
from one range to the next.
I'm pretty much a novice in the area of SNA metrics so would welcome any
advice on alternate measures or finessing the measures I am using. I'm
using UCINET...latest version.
Laurence Lock Lee
(Part-time) PhD Student
University of Sydney
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