GCA Technology Services provides course-oriented development services and is most widely known for creating Sun Microsystems’ curriculum for their Portal Server, Identity Manager, Sun Java Caps [SOA], Web Server and Application Server classes. Their aim is to produce curriculum content based on experience by combining consulting and training as one practice. When in the classroom, the consultative approach is practiced by bringing in real-life experiences. When in the customer field, knowledge is implemented through training approach. Areas of focus by GCA are Learning Services such as custom courses, training and certification, Infrastructure and Support Services such as storage and virtualization and Software and Professional Services for identity management. GCA archive files [.GCA] are compressed files which are the predecessors of .GCA compression format that creates DGC files.