UML Components: A Simple Process for Specifying Component-Based Software Book

	Foreword	xi
	Preface	xiii
Chapter 1	Component Systems	1
1.1	Component Goals	1
1.2	Component Principles	2
1.3	Component Forms	4
1.3.1	Example: Microsoft Word	6
1.3.2	What a Component Isn't	7
1.4	Component and System Architectures	9
1.4.1	System Architectures	10
1.4.2	Component Architectures	13
1.5	Specifying Contracts	16
1.5.1	Usage Contracts	18
1.5.2	Realization Contracts	20
1.5.3	Interfaces versus Component Specifications	21
1.6	Model Levels	22
1.7	Summary	23
Chapter 2	The Development Process	25
2.1	Workflows	26
2.2	The Impact of the Management Process	28
2.2.1	The Evolution of Software Processes	28
2.2.2	Accommodating Change	29
2.3	Workflow Artifacts	31
2.4	The Specification Workflow	33
2.4.1	Component Identification	33
2.4.2	Component Interaction	35
2.4.3	Component Specification	35
2.5	Summary	36
Chapter 3	Applying UML	37
3.1	Why Do We Need This Chapter at All?	37
3.1.1	Tools	38
3.2	Extending UML with Stereotypes	39
3.3	Precision, Accuracy, and Completeness	39
3.4	UML Modeling Techniques	40
3.5	Business Concept Model	43
3.6	Use Case Model	44
3.6.1	Use Case Diagrams	45
3.6.2	Use Case Descriptions	45
3.6.3	Use Case Instances	47
3.6.4	Inclusions, Extensions, and Variations	47
3.7	Business Type Model	48
3.7.1	Types	49
3.7.2	Structured Data Types	51
3.7.3	Interface Type	52
3.7.4	Invariants	54
3.8	Interface Specification	55
3.8.1	Interface Specification Package	55
3.8.2	Information Model	57
3.8.3	Operation Specification	57
3.9	Component Specification	59
3.9.1	Component Object Interaction	61
3.9.2	Specification, Not Implementation	62
3.10	Component Architectures	63
3.11	Summary	64
Chapter 4	Requirements Definition	67
4.1	Business Processes	68
4.2	Business Concept Model	69
4.3	System Envisioning	71
4.4	Use Cases	71
4.4.1	Actors and Roles	72
4.4.2	Use Case Identification	73
4.4.3	Use Case Descriptions	77
4.4.4	Quality of Service	80
4.5	Summary	81
Chapter 5	Component Identification	83
5.1	Identifying Interfaces	84
5.2	Identifying System Interfaces and Operations	86
5.2.1	Make a Reservation	86
5.2.2	Take Up Reservation	87
5.3	Identifying Business Interfaces	88
5.3.1	Create the Business Type Model	88
5.3.2	Refine the Business Type Model	89
5.3.3	Define Business Rules	90
5.3.4	Identify Core Types	92
5.3.5	Create Business Interfaces and Assign Responsibilities	92
5.3.6	Allocating Responsibility for Associations	94
5.4	Creating Initial Interface Specifications	96
5.5	Existing Interfaces and Systems	97
5.6	Component Specification Architecture	98
5.6.1	System Component Specifications	99
5.6.2	Business Component Specifications	99
5.6.3	An Initial Architecture	100
5.7	Summary	101
Chapter 6	Component Interaction	103
6.1	Discovering Business Operations	104
6.1.1	Some Simple Interactions	106
6.1.2	Breaking Dependencies	109
6.2	Maintaining Referential Integrity	112
6.2.1	Component Object Architecture	112
6.2.2	Controlling Intercomponent References	113
6.3	Completing the Picture	115
6.4	Refining the Interfaces	116
6.4.1	Factoring Interfaces and Operations	119
6.5	Summary	119
Chapter 7	Component Specification	121
7.1	Specifying Interfaces	121
7.1.1	Operation Specification	123
7.1.2	Interface Information Models	123
7.1.3	Pre- and Postconditions	125
7.2	A Systematic Process	128
7.2.1	From Business Type Model to Interface Information Model	129
7.2.2	Invariants	131
7.2.3	Snapshots	132
7.2.4	Exactly What Does a Postcondition Guarantee?	134
7.3	Specifying System Interfaces	135
7.3.1	Business Rule Location	136
7.4	Specifying Components	137
7.4.1	Offered and Used Interfaces	138
7.4.2	Component Interaction Constraints	139
7.4.3	Inter-Interface Constraints	141
7.5	Factoring Interfaces	142
7.6	Summary	144
Chapter 8	Provisioning and Assembly	147
8.1	What Do We Mean by Target Technology?	147
8.2	Components Realize Component Specifications	149
8.3	Realization Mappings and Restrictions	150
8.3.1	Operation Parameters	150
8.3.2	Error and Exception Handling Mechanisms	151
8.3.3	Interface Inheritance and Interface Support	154
8.3.4	Operation Sequence	155
8.3.5	Interface Properties	155
8.3.6	Object Creation	155
8.3.7	Raising Events	156
8.4	Application Architecture Correspondence	157
8.4.1	Business Components	158
8.5	Subcomponents	160
8.6	Integrating Existing Systems	162
8.7	Purchasing Components	163
8.8	Assembly	164
8.9	Summary	165
8.10	A Final Thought	166
	References	167
	Index	169