Business systems design and development:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | Undetermined |
| Veröffentlicht: |
New York u. a.
Prentice Hall
1990
|
| Ausgabe: | 1. publ., 1. print. |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XVIII, 205 S. |
| ISBN: | 0138808325 0138808244 |
Internformat
MARC
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| 100 | 1 | |a Cornes, Ralph |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a Business systems design and development |c Ralph Cornes |
| 250 | |a 1. publ., 1. print. | ||
| 264 | 1 | |a New York u. a. |b Prentice Hall |c 1990 | |
| 300 | |a XVIII, 205 S. | ||
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| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
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Datensatz im Suchindex
| _version_ | 1805077443177873408 |
|---|---|
| adam_text |
Contents
Preface xiii
Introduction xvii
1 WHAT THIS BOOK IS ABOUT 1
Chapter summary 1
Development methodologies 1
Non technical (cultural and organisational) factors
in development 3
Incomplete and complete concepts 4
Man machine applications 5
The man machine interface (MMI) 6
The computer kernel 6
Modelling the real world 7
Defining objects in the real world 10
The end users 13
Brainstorming 14
2 AN OVERVIEW OF DESIGN 16
Chapter summary 16
The total application 17
Strategic and tactical design 18
Design from procedures to the computer kernel 19
Manual procedures and message handling 21
Message origination, message transmission, data
capture and data entry 21
The design of the computer kernel 24
The core and the periphery 24
A new view of the periphery 25
Implications of the new view 25
Designing for windfall benefits 27
The types of user 28
vii
viii Contents
3 MANUAL PROCEDURES AND THE MESSAGE NETWORK 30
Chapter summary 30
Manual procedures 30
Starting to design the application 30
Message handling 31
Message analysis 31
Classification of data elements 32
Total application roles 36
The message flowchart 36
Simplifying the network 39
Reducing the message network 40
Placing functionality in transaction programs 41
The message origination point 42
Data capture 43
Data entry 44
4 TYPES OF USER 46
Chapter summary 46
The major categories of user 47
Obligatory and discretionary users 48
Intermittent and regular users 52
The characteristics of the application 57
Typical users 58
5 THE MAN MACHINE INTERFACE: SCREENS 60
Chapter summary 60
The function of the man machine interface 61
The users 61
Intermittent users: the keyboard barrier 61
Regular users: flexible screen management 62
Discretionary users: ease of use 63
Obligatory users: increase of status 64
Screen divisions 64
Screen header 65
Designing the screen dialogue and screen contents 65
Features affecting screen design 66
Design options 67
Common design points 68
Menu screens 68
Task mismatching 70
Legible screens 70
Transaction types: action codes 71
Contents a
Interrogation screens 71
Insertion/deletion 74
Updating 76
Mixed action codes 77
Message types 77
Object types 78
Activity and event messages 79
The deliverables 82
6 THE MAN MACHINE INTERFACE: REPORTS
AND REPORT WRITERS 83
Chapter summary 83
General considerations 83
Two kinds of report 84
Reports on activities 85
Management information reports 85
The divisions of a report 86
Page headers 86
Page footers 86
Report lines 87
Alternatives to traditional reports 91
Report writers 91
Application specific report writers 91
Print suppression on omnibus reports 91
Ad hoc reporting 92
7 CONTROLS AND VALIDATION 94
Chapter summary 94
The aims of controls and validation 94
Dealing with validation messages 95
Types of data element 96
Summary of validation techniques 97
Control totals 97
Document count 98
Numbered documents 98
Data redundancy 99
Check digits 99
The check table file 101
Range checks 101
Combination checks 102
Basis of validation 102
The validation list 103
I
x Contents
Validation in financial and logistic systems 105
A cautionary tale 107
8 KERNEL DESIGN: DESCRIBING THE REAL WORLD 109
Chapter summary 109
Why build models? 109
The standard DP model 111
Limitations of the standard DP model 112
The refined model 113
Objects 114
Subjects and actions 114
Activities and events 115
Prime, compound and document subjects 116
Individuals, groups and domains 118
Information and information constraints 119
Attributes of objects 120
The model in normal language 122
9 THE COMPUTER KERNEL: ROLE ANALYSIS OF DATA 124
Chapter summary 124
What is role analysis? 124
When is role analysis carried out? 125
The mechanics of role analysis 126
Steps in role analysis 128
Excluding housekeeping data 128
Data elements and information elements 128
Discovering the objects 129
Linking information elements to documents 129
Checking and simplifying the groupings 130
Collating documents 130
Classifying the objects 130
Prime subjects 131
An example 131
Stage 1: subjects and actions 132
Stage 2: activities and events 132
Stage 3: subjects 132
Stage 4: information elements in each 133
10 DESIGNING THE COMPUTER KERNEL: THE DATABASE 136
Chapter summary 136
Why the kernel has to be designed 137
Logical files and databases 138
Contents xi
The role of the database 138
Designing for flexibility 139
Modified approach to flexible design 140
Operational characteristics of data 141
Files for all applications 142
The unit of measure (UOM) file 142
Name and address (anagraphic) files 143
Dustbin files 144
When to use special files 145
Putting in flexibility 146
Atomistic files 146
Group records 146
Action groups 147
An example 148
Relating back to the real world 150
11 THE APPLICATION PROGRAMS 152
Chapter summary 152
Program modules 152
Modules and 4GLs I53
4GL summary 154
Module structure 154
Module pipelining 156
Classes of modules 157
Screen definition 158
Processing and rules modules 158
The database machine 159
Communication modules 159
Default modules 160
Module structure 160
Macro modules 160
Duplicate data 161
Prototyping the configuration 162
Validation 162
Core and periphery 163
12 BRAIN STORMING: ADDITIONAL PAY OFFS 166
Chapter summary 166
Brainstorming 166
Design stages 167
Brainstorming the network 169
Input messages 170
xii Contents
Output messages 171
Brainstorming the man machine interface 172
Screen design and management 172
Reports 173
Brainstorming the kernel design 175
Summary 176
13 DESIGNING FOR INFORMATION MANAGEMENT 177
The concept of information management 177
The difficulties 178
Ownership of information 178
Knowing what is available 178
The ownership of information 180
Information element management 181
An application registry 183
Consequences of information management 183
APPENDICES
A Analysing existing procedures 186
The message list 186
The labour balance 188
The message flowchart 189
B Unifying messages 192
Glossary 194
Index 199 |
| any_adam_object | 1 |
| author | Cornes, Ralph |
| author_facet | Cornes, Ralph |
| author_role | aut |
| author_sort | Cornes, Ralph |
| author_variant | r c rc |
| building | Verbundindex |
| bvnumber | BV006084567 |
| classification_rvk | ST 237 |
| ctrlnum | (OCoLC)476276973 (DE-599)BVBBV006084567 |
| discipline | Informatik |
| edition | 1. publ., 1. print. |
| format | Book |
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| id | DE-604.BV006084567 |
| illustrated | Not Illustrated |
| indexdate | 2024-07-20T06:13:16Z |
| institution | BVB |
| isbn | 0138808325 0138808244 |
| language | Undetermined |
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| physical | XVIII, 205 S. |
| publishDate | 1990 |
| publishDateSearch | 1990 |
| publishDateSort | 1990 |
| publisher | Prentice Hall |
| record_format | marc |
| spelling | Cornes, Ralph Verfasser aut Business systems design and development Ralph Cornes 1. publ., 1. print. New York u. a. Prentice Hall 1990 XVIII, 205 S. txt rdacontent n rdamedia nc rdacarrier systemudvikling-edb Systementwicklung (DE-588)4126945-7 gnd rswk-swf Betriebliches Informationssystem (DE-588)4069386-7 gnd rswk-swf Betriebliches Informationssystem (DE-588)4069386-7 s Systementwicklung (DE-588)4126945-7 s DE-604 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=003841569&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Cornes, Ralph Business systems design and development systemudvikling-edb Systementwicklung (DE-588)4126945-7 gnd Betriebliches Informationssystem (DE-588)4069386-7 gnd |
| subject_GND | (DE-588)4126945-7 (DE-588)4069386-7 |
| title | Business systems design and development |
| title_auth | Business systems design and development |
| title_exact_search | Business systems design and development |
| title_full | Business systems design and development Ralph Cornes |
| title_fullStr | Business systems design and development Ralph Cornes |
| title_full_unstemmed | Business systems design and development Ralph Cornes |
| title_short | Business systems design and development |
| title_sort | business systems design and development |
| topic | systemudvikling-edb Systementwicklung (DE-588)4126945-7 gnd Betriebliches Informationssystem (DE-588)4069386-7 gnd |
| topic_facet | systemudvikling-edb Systementwicklung Betriebliches Informationssystem |
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