HP Integrity NonStop J-Series - Manual (Page 3)

CONTENTS
PREFACE .................................................... xi
SYNTAX CONVENTIONS IN THIS MANUAL .......................... xiii
SECTION 1. INTRODUCTION TO ENABLE ......................... 1-1
What Can an ENABLE Application Do? ....................... 1-1
Typical Tasks Performed by an ENABLE Application ......... 1-4
Tandem Products and ENABLE Applications .................. 1-7
Why Use ENABLE? .......................................... 1-8
How Does ENABLE Work? .................................... 1-9
SECTION 2. GENERATING AND EXECUTING AN APPLICATION--
OVERVIEW ................................................. 2-1
Providing a Data Dictionary .............................. 2-1
Supplying Specifications ................................. 2-2
Supplying Values for Box and Application Attributes .. 2-11
Effect of the ENABLE Commands ......................... 2-13
Supplying a Data Base ................................... 2-24
What is a Data Base? .................................. 2-24
Fields ................................................ 2-24
Records ............................................... 2-25
Files ................................................. 2-25
Key Fields ............................................ 2-26
Establishing a PATHWAY System ........................... 2-27
SECTION 3. DEVELOPING, DESCRIBING, AND CREATING A
DATA BASE ................................................ 3-1
Developing a Data Base ................................... 3-1
Identifying the Classes of Information ................. 3-2
Listing the Data Items ................................. 3-3
Drawing the Relationship Between Classes of
Information .......................................... 3-4
Listing the Fields in Each File ........................ 3-8
Selecting the Appropriate File Type .................... 3-9
Choosing Key Fields ................................... 3-10
Describing a Data Base .................................. 3-11
iii