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ESP 7 Multi-Technology
Enterprise Server Procedures for GCOS 7
(ESP 7) is part of Bull's offer aimed at developing Client/Server
applications taking benefit from the outstanding Mainframe Disciplines
of GCOS 7 as a DB/TP server.
The ESP 7 Multi-Technology new
offer brings significant improvments:
- On the Client side of ESP 7, ESP 7
Java Class and ESP 7 Enterprise Java Bean (EJB) features can be
integrated within a Java environment independent of the underlying
platform,
- Capability to run within TDS
"DSA Mode" or TDS "TCP/IP Mode" applications
located on Non-DIANE or DIANE DPS 7000 platforms,
- UNIX servers are now eligible as a
platform for running the ESP 7 Client side.
Product overview
On the Bull DPS 7000 side
The TDS application services
(transactions)
- are developed using COBOL, 4GL's or
CASE tools supporting GCOS 7 as target platform,
- execute business rules and access
the UFAS, IDS/II and ORACLE databases in Read and/or Update modes.
The TDS transactions must comply with
the following profile:
- no conversation (One exchange),
- message passing for input and output
parameters (line mode, no forms handling),
- read and/or update user files.
On the Client side (Workstation or
Server)
The "Client" application is
developed with a Rapid Application Development (RAD) tool.
The Client application triggers the
GCOS 7 TDS application services (transactions) by means of the methods
available through the ESP 7 ActiveX Control, the ESP 7 Java Class or
the ESP 7 EJB.
User benefits
General Purpose
- ESP 7 Multi-Technology facilitates
building application systems spanning PC Workstations, NT Servers,
UNIX Servers and Bull DPS 7000 platforms, based on standard
architectures.
- ESP 7 Multi-Technology enables the
independent evolution of "Client" and Server parts of
the application, provided that both parts remain compliant with
the applicative interface they agreed on:
- application evolution is
facilitated for an easier and quicker response to business
changes and constraints,
- there is no need for developers of
the Client part of the application to be skilled for GCOS
environment, and vice-versa.
- ESP 7 Multi-Technology allows for
smooth evolution of applications with the capability for the
different "ESP 7 Client types" to access the same user's
TDS application.
Regarding the two-tier architecture
- ESP 7 Multi-Technology enables to
integrate the individual productivity tools located on the
end-user's Windows desktop with the Enterprise Client/Server
applications.
Regarding the three-tier architecture
- ESP 7 Multi-Technology enables
three-tier architecture suitable for e-business deployment
- thin client with standard browser
on user's workstations,
- Web/Application Server on the
middle tier,
- GCOS 7 Back-end with RAS features
for management of corporate data.
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