Sun Microsystems

Diyatech provided expertise in architecture and implementation of an object oriented Quality Support System (QSS). QSS helps the Quality group to manage and track SUN's hardware components and issues associated with them.

Quality Support System (QSS)

System developed as a three-tier solution using Java in the client-tier and middle-tier, and Oracle for the database tier. All development done on SUN Solaris using Java, JDK, AWT, and Oracle. Below is description of some of the major subsystems:

Graphical User Interface Client Tier

Designed and developed a multi-threaded Java GUI Applet to provide forms for adding and changing issues, corrective actions and failure analysis; a flexible search mechanism; comprehensive administration for adding and modifying component companies, contacts, products and part numbers. Also designed the client to register itself to a messaging server to minimize access to the database and help improve performance dramatically.

Environment: Java, Netscape Navigator (browser), and KLG Java Widgets.

Java Server Middle Tier

Designed and developed the middle tier around the architecture provided by a Java Servlets. The Servlets help to provide access to RMI servers such as Print, Email, Messaging and Notification, and the QSS server – without having to name machines that are required by RMI. Each server was designed as an independent RMI server. The QSS server made use of JDBC to access the database.

Environment: Java Servlets, Java (RMI, JDBC), Java native methods.

Database Tier

The database tier provided persistent repository for QSS data.

Environment: Oracle.