iX V6.5 (30391-90011)

Chapter 1 27

Introduction

Data Security

1 Introduction

TurboIMAGE/XL is a set of programs and procedures that you can use to deﬁne, create,

access, and maintain a database. A database is a collection of logically-related ﬁles

containing both data and structural information. Pointers within the database allow you to

gain access to related data and to index data across ﬁles.

The primary beneﬁt of the TurboIMAGE/XL database management system is time

savings. These savings are typically provided in the following areas:

• Data security

• Rapid data retrieval and formatting

• Program development

• Program maintenance

• Program ﬁle independence

• File consolidation

• Special information needs

This chapter describes each of these topics in detail.

Effective use of TurboIMAGE/XL can remove a large portion of the overhead associated

with integrated system design from application analysts and programmers.

TurboIMAGE/XL can channel system design talents into functional rather than

structurally-supportive design tasks.

Data Security

Conventional ﬁle management systems have limited data security provisions. Access to

computer readable data can only be denied to individuals with system access by providing

physical protection for the media upon which the ﬁle is stored, such as using a data vault

for storing sensitive data stored on magnetic tape or disk.

TurboIMAGE/XL, in conjunction with MPE/iX, provides security at account, group, data

item, and data set levels. Implementing security at the item level allows sensitive data to

be stored on-line under the control of TurboIMAGE/XL, a database manager or designer,

and system manager, with minimal regard for additional security provisions.

TurboIMAGE/XL security provisions can limit programmer or operator access to sensitive

information.