Browse Prior Art Database

Mechanism for Dynamically Connecting Input Sources to Programs

IP.com Disclosure Number: IPCOM000078735D
Original Publication Date: 1973-Feb-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 3 page(s) / 53K

Publishing Venue

IBM

Related People

Boggs, JK: AUTHOR [+3]

Abstract

The method described herein distinguishes four identifiable processes involved with terminal connection to an application system. Major emphasis is placed upon the distinction between the process of connection and the process of logon. This distinction provides for a simpler and and more flexible implementation of the connection and logon processes than has been heretofore accomplished. Definitions: 1) Message Switching Control Program - A system program which controls teleprocessing message traffic by queuing and/or routing these messages. Also a teleprocessing access method. 2) Application Program - A problem program which processes user input from a terminal; such as a subsystem like time-sharing option (TSO).

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 54% of the total text.

Page 1 of 3

Mechanism for Dynamically Connecting Input Sources to Programs

The method described herein distinguishes four identifiable processes involved with terminal connection to an application system. Major emphasis is placed upon the distinction between the process of connection and the process of logon. This distinction provides for a simpler and and more flexible implementation of the connection and logon processes than has been heretofore accomplished.

Definitions:
1) Message Switching Control Program - A system program which

controls teleprocessing message traffic by queuing and/or

routing these messages. Also a teleprocessing access method.
2) Application Program - A problem program which processes user

input from a terminal; such as a subsystem like time-sharing

option (TSO).
3) Port - The interface through which application programs send and

receive messages from some particular user.
4) Line - The physical mechanism by which a terminal is connected

to the computer and its operating system.
5) System Connection - The physical process of connecting a

terminal to the system. Associates a terminal and line.
6) System Logon - Process of identifying the user at a terminal

and validating his use of various system facilities.
7) Application Connection - The process of connecting a terminal

to some application program, so that the terminal users input

can be processed. Associates a line with a port.
8) Application Logon - Process of validating the users access to

various facilities of the application program.

Contrast between Static and Dynamic Connection:

This chart emphasizes the distinction between logon and connection. Function Static Connection Hardware System Logon None System verifies user
i.d and function Application System Generated Dynamic, as a result of Connection (static) system logon Application Application Application Logon Defined Defined

Another way of expressing the contrast is shown by the diagram...