By Chandra Yadav Subhash
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Extra info for An Introduction to Client Server Computing
In an ORACLE-based Client/Server system the workstations can be IBM – compatible PCs, Macintoshes, UNIX workstations, or any combinations of the three. In addition, they can run any of a number of operating systems such as MS-DOS, Windows, IBM’s OS/2, Apple’s System 7 etc. That is, application independence is achieved as the workstations don’t all need to use the same DBMS application software. Users can continue to use familiar software to access the database, and developers can design front-ends tailored to the workstation on which the software will run, or to the needs of the users running them.
For the organizations using Client/Server systems the environment is heterogeneous whereas the users prime concern to achieve the maximum functionality. Every Client/Server system should give equal importance to the developers’ and users’ requirements. For the users, this means the realization of a single-system-image. ” SSI makes the system appear like a single machine to the user, to applications, and to the network. With it all network resources present themselves to every user in the same way from every workstation (See the Fig.
When defining the system, we must make sure to plan for cost carefully. We should try to balance the cost carefully with the effective benefits of the system. We should also make sure to select a pilot implementation that provides immediate and tangible benefits. For example, a system that takes two years to develop and another three to generate tangible benefits is not acceptable. (iv) Management Commitment Top to bottom commitment is essential when we are dealing with the introduction of new technologies that affect the entire organization.