NonStop Systems Introduction for H-Series RVUs

Glossary
NonStop Systems Introduction for H-Series RVUs—540083-001
Glossary-4
EJB
EJB. See Enterprise JavaBeans (EJB).
EJB container. A container that provides a runtime environment for enterprise beans that
includes security, currency, life cycle management, transaction, deployment, and other
services, according to the component contract of the J2EE architecture.
Enterprise Application Integration (EAI). Technology employed by a ZLE framework to
transmit information between business applications and the real-time data store.
enterprise bean. A software component that implements a business task or business entity
and resides in an EJB container.
Enterprise JavaBeans (EJB). A standard component model for a Java server-side
framework for application servers. These servers provide services that include
transactions, security, and naming.
Enterprise Toolkit - NonStop Edition (ETK). An PC-based application development utility
with a graphical user interface. ETK is an extension package to
Microsoft Visual Studio .NET.
ETK. See Enterprise Toolkit - NonStop Edition (ETK).
Expand. An HP communications software product used to connect NonStop servers in a
network. The Expand product extends the concept of fault-tolerant operation to
networks of geographically distributed NonStop servers.
expandability. See scalability.
fabric. See ServerNet fabric.
fault tolerance. The ability of a computer system to continue processing despite the failure
of any single software or hardware component within the system.
file recovery. A database recovery procedure in which the after-images of all committed
transactions are reapplied to the archive copy of the database. The database is
returned to the consistent state it was in just prior to failure.
file system. (1) In the Guardian environment, the application programming interface (API)
for communication between a process and a file. A file can be a disk file, a device other
than a disk, or another process. (2) In the Open System Services environment, a
collection of files and file attributes. A file system provides the namespace for the file
serial numbers that uniquely identify its files.
graphical user interface (GUI). A type of screen interface that typically includes pull-down
menus, icons, dialog boxes, and online help.
Guardian environment. An environment available for interactive or programmatic use with
the NonStop operating system. The Guardian environment consists of an application
programming interface (API), tools, and utilities.