This anthology from the Tetradian weblog explores notions of theory in enterprise-architecture and the like, from mainstream IT-centric views to whole-enterprise architectures and beyond.

This book includes about 40 posts and 65 images from the weblog. These posts are split into four groups:

• Theory: Patterns - reviews the underlying concepts and definitions for a wide range of architecture concerns and patterns.
• Theory: Technology - assesses how problems in technology and architecture often arise from a poor grasp of underlying theory.
• Theory: Science - considers how we need to use science itself to test the science we use in our architectures and more.
• Theory: Scale - explores how theory itself can break down at different scales, and will need to be adapted to work well in those contexts.

"Theory informs practice; practice reinforms theory". This anthology from the Tetradian weblog explores how theory and practice support each other, in the transition from initial plan to real-world implementation of an architecture.

This book includes about 35 posts and 45 images from the weblog. These posts are split into two groups:

- *From Theory* - outlines some essential theory and guiding-principles for working on enterprise-architectures and more.

- *To Practice* - provides practical guidance on common issues that can arise during development for various types of architecture.

This anthology from the Tetradian weblog explores a range of topics about the kind of toolsets that we need to support the work in enterprise-architectures and the like.

It includes around 50 posts and 90 images, and is split into five sections:

• Toolsets: Integration - a set of overviews that bring it all together
• Toolsets: Why - a decade’s-worth of explorations in the ‘Why‘ behind the need
• Toolsets: How - about how this blending of toolset and platform would be used in real-world practice
• Toolsets: What - some examples of the ‘What‘ that we’d need to cover across the whole-enterprise space, in terms of notations and the like
• Toolsets: Implementation - some practical notes towards implementation, getting beyond conjecture and towards making it real

This anthology from the Tetradian weblog focuses on tools and frameworks used in IT-oriented enterprise-architecture.

This book includes about 40 posts and 35 images from the weblog. These posts are split into two groups:

• Frameworks: IT-oriented - assesses key frameworks for IT-oriented architectures, and issues arising from usages of those frameworks.
• Frameworks: Zachman - reassesses the various elements of the row-and-column Zachman framework, in particular via the series of posts on ‘Rethinking Zachman’.

This anthology from the Tetradian weblog focuses on tools and frameworks used in various forms of enterprise-architecture, typically beyond IT alone.

This book includes about 35 posts and 75 images from the weblog. These posts are split into eight small groups:

• Frameworks: SCORE and Strategy - describes the purpose and usages of the SCORE tool for high-level planning and strategic review.
• Frameworks: Change-Mapping - addresses specific aspects of the Change-mapping framework for guidance of change.
• Frameworks: NOTES - introduces the NOTES framework, a story-oriented method for architecture development and validation.
• Frameworks: The This Game - presents a game-like method for modelling the elements of an enterprise.
• Frameworks: VPEC-T - discusses applications for the VPEC-T framework (Values, Policies, Events, Content, Trust) developed by Carl Bate and Nigel Green.
• Frameworks: Spiral Dynamics - outlines a reframe for the Spiral Dynamics model of social-dynamics.
• Frameworks: Other Frameworks - provides overviews and summaries for a variety of other tools and frameworks.
• Frameworks: Related-Themes - explores a wide range of other topics related to frameworks and tools for architectures.

This anthology from the Tetradian weblog explores a range of themes relating to business-models and their background.

This book includes about 35 posts and 80 images from the weblog. These posts are split into four groups:

• Business Models: Business-Model - assesses the purpose and function of business-models in business-architecture.
• Business Models: Business Model Canvas - outlines usages for the well-known Business Model Canvas in non-profit organisations and beyond startups.
• Business Models: Business-Architecture Frameworks - summarises business-architecture frameworks that can be used in conjunction with business-models.
• Business Models: Business Concepts - shows how core business-concepts may apply in context of business-models.

This anthology from the Tetradian weblog explores why we need to expand enterprise-architecture from its IT-centric roots into a true whole-of-enterprise scope and scale, and how to do this in architecture-practice.

This book includes about 40 posts and 95 images from the weblog. These posts are split into six groups:

• Selling EA - describes how to present to potential clients the full role and value of enterprise-architecture.
• Saving EA - provides a structured review of challenges and failure-points that limit the use of mainstream enterprise-architectures beyond IT.
• Reframing EA - explores practices and themes that would need to be addressed in a whole-of-enterprise architecture.
• The No-Plan Plan - presents a summary of content required for whole-enterprise architecture.
• Whole-EA Standard - outlines the structure and content for a proposed standard for whole-enterprise architecture.
• The Big-Picture - assesses what would be needed to extend whole-enterprise architecture to a fully global scope and scale.