InfoWorld - If you curse your "tier-one" IT management solution as too cumbersome, too complex, and too expensive, you're not alone. In arecent Gartner study that declares the "Big Four" -- BMC, CA, HP, and IBM -- increasingly vulnerable to SaaS (software as a service) and open source alternatives, surveyed users gave their vendors mostly C's and D's, and a good number of incompletes.
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