Servigistics InService Deployment > Architecture Overview > Multi-Tier Architecture
  
Multi-Tier Architecture
Servigistics InService is a multi-tier architecture that can be deployed in a configuration small enough to run on a single server (for small workgroup teams) as well as in a configuration as large and complex as a highly redundant clustered system that spans multiple data centers and serves thousands of end users on a global scale. The architecture is commonly represented in three tiers:
Client Tier – Contains the products that people use to access Servigistics InService. (web browser)
Application Tier – Contains the application servers which contain the presentation and business logic. The application tier is typically placed in a protected zone for applications (often within corporate data centers) and, in highly-secured environments, user traffic is routed through a demilitarized zone (DMZ).
Database Tier – The database or data tier is typically where the metadata and published content are stored. The metadata is managed within a Relational Database Management System (RDBMS) such as Oracle or SQL Server. The published content is accessed by the proprietary core servers and stored within the E3C storage locations.
The Servigistics InService multi-tier architecture offers the flexibility and options to be deployed with an infrastructure that can support the most demanding service level agreements The architecture can support users from various departments within an enterprise, as well as external dealer and customer communities.