GECO 3
The requirements for the GECO system are unique in two respects. First, GECO is a distributed system with point-of-sale systems at GSA stores worldwide. Hence the architecture needs to be developed such that each location can work during wide-area network outages. Second, GECO currently utilizes an end-of-life module - RMS - that is functionally-mature and is end-of-life. This too has architectural impacts plus increases the time pressure on the overall effort.
Introduction
One of GSA's responsibility is to manage retail stores for government use across the US. Outside GSA manages retail stores in Alaska and Hawaii, as well as in Japan, South Korea, and Guam. In the US, GSA manages retail stores for all military services ranging from Curtis Bay, MD, to Southern California, and many states in between. The GSA Enhanced Check-out (GECO) Application has been developed to provide point-of-sale operations to these stores.
Conceptual Architecture
GECO 3, representing the third generation of GECO, is intended to reduce vendor dependence and technical debt and is represented at a high-level with this Conceptual Architecture
Solution Architecture (Modernized)
The Solution Architecture was developed to support GECO 3's independent of other GSS systems (such as OMS) and its distributed world-wide nature and interacts with the balance of GSA via systems interfaces.
Network Architecture
The Network Architecture was designed to support world-wide connectivity 24 x 7.
