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The computer consulting industry can be broken into two major segments: supplemental staffing and project-oriented firms.  Most staffing firms provide technical services across a range of engagements and are driven to maximize billable hours.  In this role they will seldom take full responsibility for the solution to a client problem.  Exponential is not a staffing company.   At the other extreme the "Big 4" consulting firms specialize in re-engineering their clients' basic business practices.  Unlike the "Big 4" Exponential focuses on integrating technical business solutions so that they complement and enhance existing business practices which in turn leads to further business opportunities for the client organization to evaluate and act upon.   Many project-oriented firms our size concentrate on a specific vertical marketplace and often sell software and hardware along with expertise.  Exponential provides project-oriented technical services across a wide range of industries.

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Client/Server Solutions

The term client/server was first used in the 1980s in reference to personal computers (PCs) on a network. The actual client/server model started gaining acceptance in the late 1980s. The client/server software architecture is a versatile, message-based and modular infrastructure that is intended to improve usability , flexibility , interoperability , and scalability as compared to centralized, mainframe, time sharing computing. A client is defined as a requester of services and a server is defined as the provider of services. A single machine can be both a client and a server depending on the software configuration.

As a result of the limitations of file sharing architectures, the client/server architecture emerged. This approach introduced a database server to replace the file server. Using a relational database management system (DBMS), user queries could be answered directly. The client/server architecture reduced network traffic by providing a query response rather than total file transfer. It improves multi-user updating through a GUI front end to a shared database. In client/server architectures, Remote Procedure Calls (RPCs) or standard query language (SQL) statements are typically used to communicate between the client and server.

Two-Tier Architecture :: Good solution for distributed computing when work groups are defined as a dozen to 100 people interacting on a LAN simultaneously.  Limitations include: 1) performance degradation when over 100 users due to server maintaining a connection via "keep-alive" messages with each client, even when no work is being done; 2) limited flexibility in moving (repartitioning) program functionality from one server to another without manually regenerating procedural code.
Three-Tier (N-Tier) Architecture :: A middle tier (e.g. transaction processing monitor, message server, application server)  is added between the user system interface client environment and the database management server environment.   The middle tier can perform message queuing, application execution, and/or database staging. Using this approach has been shown to improve performance for groups with a large number of users (in the thousands) and improves flexibility when compared to the two tier approach.
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Which Client/Server solutions meet your needs?
Business Intelligence :: Business Intelligence Solutions open data up to your whole organization by extracting it from operational applications, converting it to a standard format, and storing it in a central location optimized for rapid delivery and more detailed query and analysis.
Rule-Based Systems :: Rule-Based Systems save time by separating business logic from procedural code. Rules are written in business terms, enabling the business experts rather than technical staff to control and automate procedures and policies.
Customer Relationship Management (CRM) :: Integrate your customer data and communication channels, better analyze their buying behaviors, and target your marketing campaigns to improve retention, acquisitions and sales.
Supply Chain Management (SCM) :: Create improved pipelines using XML and related technologies to more precisely manage inventory planning, distribution channels, and corporate production policies. 
 
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