TS/MP Pathsend and Server Programming Manual (G06.24+, H06.03+)

Introduction to Pathway Application Programming
NonStop TS/MP Pathsend and Server Programming Manual–132500
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Advantages of the Pathway Environment
Advantages of the Pathway Environment
NonStop TS/MP provides ease of development, manageability, and the fundamental
strengths and benefits of Tandem NonStop systems. The strengths and benefits of
Tandem systems include data integrity, fault tolerance, high performance and low cost,
system security, scalability, and distributed processing. The following paragraphs
describe how NonStop TS/MP and related products—known together as the Pathway
environment—benefit the application designer and programmer. The Introduction to
NonStop Transaction Processing provides a fuller description of how all the Tandem
fundamentals apply to transaction processing.
Ease of Development
Development costs are one of the highest expenses associated with online transaction
processing (OLTP) systems. The more sophisticated the features and safeguards that are
built into your OLTP application—for example, multiprocessing, fault tolerance, and
data integrity—the greater the costs. When you use NonStop TS/MP and related Tandem
transaction processing products to create your OLTP applications, development time and
efforts, and therefore costs, can be measurably reduced.
This cost reduction occurs because:
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NonStop TS/MP and related products provide the most complex components of an
OLTP application. NonStop TS/MP includes the transaction monitor (PATHMON),
the command interpreter for management (PATHCOM), and the means for
interprocess communication.
In addition, the NonStop Transaction Manager/MP (NonStop TM/MP) product
provides the transaction manager, and the Pathway/TS product provides a
multithreaded terminal control process (TCP) for communication with terminals,
including fault tolerance and transaction protection. (On Tandem NonStop system
models earlier than the Himalaya systems, Pathway/TS is packaged as part of the
Pathway transaction processing system.)
Used with or without NonStop TM/MP and Pathway/TS, NonStop TS/MP provides
a run-time Pathway environment to simplify your development efforts for scalable
OLTP applications on a massively parallel processor architecture.
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Tandem makes valuable application development tools and utilities available for the
Pathway environment. These development tools and utilities can significantly reduce
the amount of programming time and effort required to generate a working Pathway
application.
The Remote Server Call (RSC) product facilitates client/server computing, allowing
workstation applications to access Pathway servers. A large number of packaged
tools and utilities are commercially available for use with RSC, including Tandem’s
Pathway Open Environment Toolkit (POET).
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The Pathway environment helps you standardize program code. You can repeat and
reuse code; you do not have to write the same requester and server programs over
and over again. This ability to reuse code saves development time.