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User Manual Line Computer UNIX 4 Data Management Software Version 501.xx 01/99 Issue 4.1 Introduction 4 - 3 4.1. 2.1 M odules of t he DNC Sy stem - Data Ma nager User Interf ace The user interface of the Da ta Manager (s…

4 Data Management User Manual Line Computer UNIX

4.1 Introduction Software Version 501.xx 01/99 Issue

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CAUTION !

The line computer software makes it possible to modify existing master and job data, or to create new

ones. It is strongly recommended that the user, with the aid of the Data Manager (see section 4.3) make

backup copies of the data to magnetic tape at regular intervals due to the possibility of accidental loss (e.g.

grave operator mistakes, infection by viruses or external damage to the computer system).

4.1.2 Structure and Function of the DNC System (Data Administration)

The DNC system is designed to hierarchically store and maintain the user data.

Moreover, it provides the possibility to output files on printers or I/O-devices (tape and diskette drives) upon

request by a user.

Fig. 4.1.1 Structure "DNC System"

User Manual Line Computer UNIX 4 Data Management

Software Version 501.xx 01/99 Issue 4.1 Introduction

4 - 3

4.1.2.1 Modules of the DNC System

- Data Manager User Interface

The user interface of the Data Manager (see section 4.3) enables the manipulation of files and

directoriies.

- Print and Update Server User Interface

The user interface of the Print and Update Server (see section 4.4) enables the devices which are

physically available in the LC system, such as printers, diskette and tape drives, to be logged on to

(activated) or logged off (deactivated) the user system and to prepare data carriers for data saving

procededures.

- Print Server

Upon the request by a user (e.g. the Data Manager), the Print Server outputs files, directories and

directory structures on the printer.

- Update Server

Upon the request by a user (e.g. the Data Manager) the Update Server enables files and directories

to be copied to external data carriers such as diskettes and streaming tapes.

- Master Data Storage

The Master Data Storage manages data, attributes and user-specific information. Upon request it

makes available stored data, or receives new data.

4 Data Management User Manual Line Computer UNIX

4.1 Introduction Software Version 501.xx 01/99 Issue

4 - 4