Terry WiegmannCBAP, CSQE, PSPO, ACGDirector, Quick Solutions, Inc.

Matrix

Model

Magi

c

Matrices and Models

• Complement Rather than Choice• Technical Credit vs Shelfware• Satisfies both sides of your Brain• Answers “How do you know?”• Validate with your team; design for your users

Model

Entity Relationship Model

Swimlanes

CRM Status Transition Diagram

Self-Defense

JIRA/Confluence Traceability

It’s All About Perspective

Periodic Table of Visualization Methods

Tips

• Start with pencil, post-its• Use mnemonics• Use a legend• Pre-answer questions• Seed with notes and comments

Matrix

Matrices

• Xs are the controlled values; Ys are the values that follow.

• Xs are usually nouns, people, roles• Ys over time or geography, adjectives or

characteristics

Rene Descartes, 1596 - 1650

• 'Father of Modern Philosophy‘• Perhaps best known for "Cogito ergo sum"

I think, therefore I am

Most Frequent Birth Dates

Jefferson’s Cypher for Lewis

Time-Based

Tips

• Don’t Use X to indicate Yes• Nouns/objects in rows, time/stages/variables

in columns• Fill NA column to eliminate concerns about

oversight

What Relationship?

Does This Status Apply to This Type?

T Shaped

Y Shaped/3-WayShows the relationships between customer requirements,

internal process metrics and the departments involved

X ShapedManufacturing Sites—Products—Customers—Freight Lines

Roof Shaped

Show one group of items relating to itself

Reports

Regression Test Coverage

Lists by Role

List Attributes by Type

Whole Matrix Customer and List Attributes

Platform/Feature Matrix

Not Greenfield Status Transition Matrix

Matrix

Model

Magi

c

Message Actions and Actors

Requirements Roadmap

Status TransitionsBacklog (Stories, Task, Bugs)New OpenNew Closed

Progression for Stories (Stories)Open ClosedOpen BlockedBlocked OpenBlocked Closed

Progression for QA TaskNew OpenOpen ClosedClosed Open

Progression for Development (Tasks and Bugs)Open In DevelopmentOpen ClosedIn Development TestingIn Development ClosedTesting Show & TellShow & Tell Ready for ProductionReady for Production In ProductionReady for Production In DevelopmentShow & Tell In DevelopmentTesting In Development

Initial Matrix

Development Tasks & Bugs

Defect Status Transitions

Defect Transition Status Transitions

Matrices and Models

• Complement Rather than Choice• Technical Credit vs Shelfware• Satisfies both sides of your Brain• Answers “How do you know?”• Matrix can be a Model• Validate with your team; design for your users

Matrix

Model

Magi

c

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