For the vast majority of users, the viable SAP R/3 platform choices through 2001 will be limited to Windows NT (on Intel) and Unix (Hewlett-Packard, Sun Microsystems, IBM and Seimens Nixdorf), while OS/390 Open Edition and OS/400 will be available for current users whose platform loyalty outweighs other considerations (0.8 probability). The chart above summarizes our major findings regarding three critical differentiators for SAP R/3 platform selection: Market share (a current snapshot -- expect improvements for Windows NT and Sun), Performance and scaling (determined by current high water s) and High availability (failover and clustering functionality). By the time a platform decision must be made, most users have already contracted with an external service provider or system integrator for the R/3 implementation assistance required, so system vendors' R/3 professional service expertise may be an irrelevant differentiator. The timeliness and quality of system vendors' hardware and software maintenance can be a differentiator, but only if verified by "local" references. System vendors that propose a heterogeneous solution (e.g., Windows NT application servers running against a Unix RDBMS server) introduce another level of management and problem resolution complexity and management cost into the picture.Action Item: We recommend that users always check vendors local references for hardware maintenance, due to extreme quality variations we have seen on a geographic basis.
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