Righting Software

Cover
Title Page
Copyright Page
Contents
Preface
About the Author
Chapter 1 The Method
	What Is The Method?
		Design Validation
		Time Crunch
		Eliminating Analysis-Paralysis
		Communication
	What The Method Is Not
Part I: System Design
	Chapter 2 Decomposition
		Avoid Functional Decomposition
			Problems with Functional Decomposition
			Reflecting on Functional Decomposition
			Avoid Domain Decomposition
			Faulty Motivation
			Testability and Design
			Example: Functional Trading System
		Volatility-Based Decomposition
			Decomposition, Maintenance, and Development
			Universal Principle
			Volatility-Based Decomposition and Testing
			The Volatility Challenge
		Identifying Volatility
			Volatile versus Variable
			Axes of Volatility
			Solutions Masquerading as Requirements
			Volatilities List
			Example: Volatility-Based Trading System
			Resist the Siren Song
			Volatility and the Business
			Design for Your Competitors
			Volatility and Longevity
			The Importance of Practicing
	Chapter 3 Structure
		Use Cases and Requirements
			Required Behaviors
		Layered Approach
			Using Services
		Typical Layers
			The Client Layer
			The Business Logic Layer
			The ResourceAccess Layer
			The Resource Layer
			Utilities Bar
		Classification Guidelines
			What’s in a Name
			The Four Questions
			Managers-to-Engines Ratio
			Key Observations
		Subsystems and Services
			Incremental Construction
			About Microservices
		Open and Closed Architectures
			Open Architecture
			Closed Architecture
			Semi-Closed/Semi-Open Architecture
			Relaxing the Rules
			Design "Don’ts"
			Strive for Symmetry
	Chapter 4 Composition
		Requirements and Changes
			Resenting Change
			Design Prime Directive
		Composable  Design
			Core Use Cases
			The Architect’s Mission
		There Is No Feature
		Handling Change
			Containing the Change
	Chapter 5 System Design Example
		System Overview
			Legacy System
			New System
			The Company
			Use Cases
		The Anti-Design Effort
			The Monolith
			Granular Building Blocks
			Domain Decomposition
		Business Alignment
			The Vision
			The Business Objectives
			Mission Statement
		The Architecture
			TradeMe Glossary
			TradeMe Areas of Volatility
			Static Architecture
			Operational Concepts
			Workflow Manager
		Design Validation
			Add Tradesman/Contractor Use Case
			Request Tradesman Use Case
			Match Tradesman Use Case
			Assign Tradesman Use Case
			Terminate Tradesman Use Case
			Pay Tradesman Use Case
			Create Project Use Case
			Close Project Use Case
		What’s Next?
Part II: Project Design
	Chapter 6 Motivation
		Why Project Design?
			Project Design and Project Sanity
			Assembly Instructions
			Hierarchy of Needs
	Chapter 7 Project Design Overview
		Defining Success
			Reporting Success
		Project Initial Staffing
			Architect, Not Architects
			The Core Team
		Educated Decisions
			Plans, Not Plan
			Software Development Plan Review
		Services and Developers
			Design and Team Efficiency
			Task Continuity
		Effort Estimations
			Classic Mistakes
			Estimation Techniques
			Overall Project Estimation
			Activity Estimations
		Critical Path Analysis
			Project Network
			The Critical Path
			Assigning Resources
		Scheduling Activities
			Staffing Distribution
		Project Cost
			Project Efficiency
		Earned Value Planning
			Classic Mistakes
			The Shallow S Curve
		Roles and Responsibilities
	Chapter 8 Network and Float
		The Network Diagram
			The Node Diagram
			The Arrow Diagram
			Arrow versus Node Diagrams
		Floats
			Total Float
			Free Float
			Calculating Floats
			Visualizing Floats
		Floats-Based Scheduling
			Float and Risk
	Chapter 9 Time and Cost
		Accelerating Software Projects
		Schedule Compression
			Working with Better Resources
			Working in Parallel
			Parallel Work and Cost
		Time–Cost Curve
			Points on Time–Cost Curve
			Discrete Modeling
			Avoiding Classic Mistakes
			Project Feasibility
			Finding Normal Solutions
		Project Cost Elements
			Direct Cost
			Indirect Cost
			Accounting versus Value
			Total, Direct, and Indirect Costs
			Compression and Cost Elements
			Staffing and Cost Elements
			Fixed Cost
		Network Compression
			Compression Flow
	Chapter 10 Risk
		Choosing Options
		Time–Risk Curve
			Actual Time–Risk Curve
		Risk Modeling
			Normalizing Risk
			Risk and Floats
			Risk and Direct Cost
			Criticality Risk
			Fibonacci Risk
			Activity Risk
			Criticality versus Activity Risk
		Compression and Risk
			Execution Risk
		Risk Decompression
			How to Decompress
			Decompression Target
		Risk Metrics
	Chapter 11 Project Design in Action
		The Mission
			The Static Architecture
			The Call Chains
			List of Activities
			Network Diagram
			Planning Assumptions
		Finding the Normal Solution
			Unlimited Resources (Iteration 1)
			Network and Resource Problems
			Infrastructure First (Iteration 2)
			Limited Resources
			Going Subcritical (Iteration 7)
			Choosing the Normal Solution
		Network Compression
			Compression Using Better Resources
			Introducing Parallel Work
			End of Compression Iterations
			Throughput Analysis
		Efficiency Analysis
		Time–Cost Curve
			Time–Cost Correlation Models
			The Death Zone
		Planning and Risk
			Risk Decompression
			Rebuilding the Time–Cost Curve
			Modeling Risk
			Risk Inclusion and Exclusion
		SDP Review
			Presenting the Options
	Chapter 12 Advanced Techniques
		God Activities
			Handling God Activities
		Risk Crossover Point
			Deriving the Crossover Point
		Finding the Decompression Target
		Geometric Risk
			Geometric Criticality Risk
			Geometric Fibonacci Risk
			Geometric Activity Risk
			Geometric Risk Behavior
		Execution Complexity
			Cyclomatic Complexity
			Project Type and Complexity
			Compression and Complexity
		Very Large Projects
			Complex Systems and Fragility
			Network of Networks
			Designing a Network of Networks
		Small Projects
		Design by Layers
			Pros and Cons
			Layers and Construction
	Chapter 13 Project Design Example
		Estimations
			Individual Activity Estimations
			Overall Project Estimation
		Dependencies and Project Network
			Behavioral Dependencies
			Nonbehavioral Dependencies
			Overriding Some Dependencies
			Sanity Checks
		The Normal Solution
			Network Diagram
			Planned Progress
			Planned Staffing Distribution
			Cost and Efficiency
			Results Summary
		Compressed Solution
			Adding Enabling Activities
			Assigning Resources
			Planned Progress
			Planned Staffing Distribution
			Cost and Efficiency
			Results Summary
		Design by Layers
			Design by Layers and Risk
			Staffing Distribution
			Results Summary
		Subcritical Solution
			Duration, Planned Progress, and Risk
			Cost and Efficiency
			Results Summary
		Comparing the Options
		Planning and Risk
			Risk Decompression
			Recalculating Cost
		Preparing for the SDP Review
	Chapter 14 Concluding Thoughts
		When to Design a Project
			The Real Answer
			Getting Ahead in Life
		General Guidelines
			Architecture versus Estimations
			Design Stance
			Optionality
			Compression
			Planning and Risk
		Design of Project Design
		In Perspective
			Subsystems and the Timeline
		The Hand-Off
			Junior Hand-Off
			Senior Hand-Off
			Senior Developers as Junior Architects
		In Practice
		Debriefing Project Design
		About Quality
			Quality-Control Activities
			Quality-Assurance Activities
			Quality and Culture
Appendix A: Project Tracking
	Activity Life Cycle and Status
		Phase Exit Criteria
		Phase Weight
		Activity Status
	Project Status
		Progress and Earned Value
		Accumulated Effort
		Accumulated Indirect Cost
	Tracking Progress and Effort
	Projections
	Projections and Corrective Actions
		All Is Well
		Underestimating
		Resource Leak
		Overestimating
	More on Projections
		The Essence of a Project
		Handling Scope Creep
		Building Trust
Appendix B: Service Contract Design
	Is This a Good Design?
	Modularity and Cost
		Cost per Service
		Integration Cost
		Area of Minimum Cost
	Services and Contracts
		Contracts as Facets
		From Service Design to Contract Design
		Attributes of Good Contracts
	Factoring Contracts
		Design Example
		Factoring Down
		Factoring Sideways
		Factoring Up
	Contract Design Metrics
		Measuring Contracts
		Size Metrics
		Avoid Properties
		Limit the Number of Contracts
		Using Metrics
	The Contract Design Challenge
Appendix C: Design Standard
	The Prime Directive
	Directives
	System Design Guidelines
	Project Design Guidelines
	Project Tracking Guidelines
	Service Contract Design Guidelines
Index
	A
	B
	C
	D
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