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OpenWin - a GUI 4GL Front End
The release of the new Windows systems, increase in the
availability of networking, decrease in the cost of computing,
and the down sizing of current equipment makes the database and
front-end tools market ready for OpenWin - a joined
development of OpenWin Inc. and IBM.
The product
OpenWin; An Open GUI 4GL, Multiple Data Bases and Multiple
platform front end which applies a Client-Server paradigm has
unique, exclusive technological advantages that no other front
end can offer.
OpenWin Concepts
Open System
OpenWin ia a truly Open System; It interfaces Graphical User
Interfaces - GUI such as MS-Windows, OS/2, Motif etc. while
adapting their best. The users can use 3rd generation
languages and software packages. OpenWin enables portability
of applications across platforms by working with LAN servers
on different operating systems and computers and interfacing
simultaneously range of DBMS and RDBMS as well as SQL servers
products using local and global data dictionary. OpenWin
preserves software investment even as hardware technology
progresses and changes rapidly. Using OpenWin the user is
free to select the most cost effective vendor on project by
project basis.
Graphical User Interface (GUI)
OpenWin's open architecture enables it interfacing Graphical
User Interfaces (MS-Windows, OS/2-PM, Motif etc.) while
adapting their best. OpenWin is a truly GUI 4GL. The
developer is working within a GUI environment with all it
advantages like working simultaneously in many windows,
selecting options using radio buttons, choosing commands from
lists etc. An application developed with OpenWin is a GUI
application. It's windows can be easily designed in many
styles, applying to the end-user the GUI advantages.
Furthermore, though OpenWin is committed to the GUI standards,
an OpenWin GUI application can have features not supported by
the GUI environment, like in-line data updating and more.
Down sizing
The availability of cost effective networking makes it
possible to build systems capable of handling large mainframe
class applications by partitioning the task across a group of
cooperating computers that are networked together on a Local
Area Network (LAN). OpenWin is the ideal tool for that task
as it can interface simultaneously range of DBMS and RDBMS on
the network or the mainframe. Furthermore, by enabling
synchronized and un-synchronized access to the mainframe data
OpenWin enables an effective cooperative processing.
Client-Server Paradigm
Networking and Microcomputer to mainframe links are only part
of the solution. Using a Client-Server paradigm to access
database engines (back-end or Server) simultaneously as well
as User Defined Servers makes OpenWin a truly Client-Server
tool facilitating ease-of-use, reduced cost and modular
growth.
Multiple Data Bases
OpenWin is a DBMS-Independent User-Interface Management System
tool. OpenWin is targeted to help developers design
the front-end, user interface components such as screens and
windows, flow-control and field edits. Not like other tools,
OpenWin is not coupled to the database back-end, the operating
system and hardware platform. OpenWin is designed to be
portable across a range of DBMS products, making it possible
for a developer who learns one UIMS to be capable of
development on a number of different DBMS platforms. While
declaring a table, the user chooses the DBMS or RDBMS which
will manage the tables. From that moment on, the user relates
to the tables in the same way through OpenWin commands or ANSI
SQL Queries, regardless what server is managing the tables
physically. Furthermore, If the chosen server dose not
support all the features offered by OpenWin (back courser -
for example), OpenWin can emulates this feature. The
possibility of interfacing simultaneously to DBMS and RDBMS
enables users to build applications using RDBMS-SQL tables and
Index files for quick look up tables.
Multiple Platforms
OpenWin's unique architecture makes it a truly multi-platform
product which runs on IBM PC/PS and IBM RS/6000 as well as
other computers using OS/2 AIX and MS-DOS operating systems.
When moving an OpenWin application from one environment to
another, OpenWin adapts the best of each environment, giving
the application new qualities. Recognizing a Multi tasking
environment, OpenWin immediately uses its advantages for its
internal use. Nevertheless, OpenWin application can set a
task to be a background process. For an example, The user can
operate a complex report in the background and continue data
entering. By working with LAN servers on different operating
systems and a variety of peripheral equipment, OpenWin enables
the user to use an heterogeneous environment for it's
software.