TOGAF defines four core architecture domains: Business, Data, Application, and Technology. These domains collectively represent the key areas covered in enterprise architecture, where the Business Architecture defines business strategy and organizational goals; Data Architecture addresses data management and structure; Application Architecture focuses on system and software applications; and Technology Architecture outlines the IT infrastructure.
References: TOGAF Standard, Architecture Domains (Chapter 3).
TOGAF, as a comprehensive Enterprise Architecture framework, divides the architecture landscape into four interrelated domains:
* Business Architecture:This domain focuses on the organization's strategic goals, business processes, and organizational structure. It defines how the business operates and creates value.
* Data Architecture:This domain deals with the structure, organization, and management of data assets within the enterprise. It includes logical and physical data models, data storage, and data security.
* Application Architecture:This domain describes the applications used to support the business, their interactions, and their alignment with business processes. It provides a blueprint for the application portfolio.
* Technology Architecture:This domain covers the technology infrastructure that supports the applications and data. It includes hardware, software, networks, and IT services.
These four domains provide a holistic view of the enterprise and how its different components work together.

The diagram provided illustrates a Capability Map. Here's why:
Focus on "what" the organization does: The diagram depicts various functions and activities that the organization performs, such as "Program/Human Resource Matching," "Employee Supply and Demand Mgmt," "Benefits Management," etc. These represent the capabilities of the organization, or what it is able to do.
Hierarchical structure: The capabilities are organized hierarchically, with broader functions like
"HR Mgmt." encompassing more specific capabilities like "Position Advertising" and "Skills Assessment." This shows how different capabilities relate to each other and contribute to higher- level functions. No specific process flow: Unlike a process map or value stream map, this diagram doesn't show a sequence of steps or flow of activities. It focuses on the capabilities themselves, not how they are executed

When creating value streams, it is recommended to start with customer-based value streams. Here's a detailed explanation:
* Value Streams:
* Definition: Value streams represent the end-to-end activities that create value for customers or stakeholders. They provide a high-level view of how value is delivered within the organization.
* Starting with Customer-Based Value Streams:
* Customer Focus: Starting with customer-based value streams ensures that the architecture is aligned with the needs and expectations of the customers. This approach helps in identifying the most critical value-creating activities and aligning them with business goals.
* Value Delivery: Customer-based value streams provide a clear understanding of how value is delivered from the customer's perspective. This helps in designing processes and capabilities that enhance customer satisfaction and business performance.
* TOGAF References:
* Phase B: Business Architecture: In this phase, value streams are identified and modeled to ensure that the architecture supports the delivery of value to customers. Starting with customer-based value streams is a key activity in this phase.
* Capability-Based Planning: TOGAF emphasizes the importance of aligning business capabilities with value streams to ensure that the architecture supports value creation and delivery.
* Benefits:
* Customer-Centric Design: Starting with customer-based value streams ensures that the architecture is designed with a focus on customer needs and value delivery.
* Strategic Alignment: Aligning value streams with customer needs helps in ensuring that the architecture supports the strategic goals of the organization and enhances customer satisfaction.
In summary, when creating value streams, starting with customer-based value streams ensures a customer-centric design, aligning the architecture with the needs and expectations of the customers and supporting strategic goals.

Organization mapping is a technique used to represent the structure and relationships within an organization.
Here's a detailed explanation of its benefits, particularly for strategic planning:
* Organization Mapping:
* Organization maps visually represent the hierarchical structure of an organization, including departments, teams, and reporting relationships. They provide insights into how the organization is structured and how different parts interact.
* Benefits for Strategic Planning:
* Alignment with Strategy: An organization map helps in aligning organizational structure with strategic goals. By understanding how the organization is structured, leaders can ensure that resources are allocated efficiently and that the organizational design supports the strategic objectives.
* Identifying Gaps and Overlaps: Organization maps highlight areas where there might be gaps or overlaps in roles and responsibilities. This information is crucial for making strategic decisions about restructuring or reallocating resources.
* Improving Communication: By clearly depicting the organizational structure, these maps improve communication and collaboration within the organization. This is particularly important for strategic planning, as it ensures that all parts of the organization are aligned and working towards the same goals.
* TOGAF References:
* Phase B: Business Architecture: Organization mapping is a key activity in this phase, where the current organizational structure is analyzed to ensure it supports the business strategy and architecture vision.
* Strategic Planning: TOGAF emphasizes the importance of aligning the business architecture with strategic planning. Organization maps are tools that facilitate this alignment by providing a clear representation of the organizational structure.
In summary, organization mapping improves strategic planning by providing a clear, visual representation of the organizational structure, helping to align resources and design with strategic goals.

The process used to decompose a set of business capabilities to communicate more detail is leveling. Leveling is a technique that can be used to break down a business capability into sub- capabilities at lower levels of granularity. Leveling can help to provide more clarity and specificity about what a business capability entails and how it supports the business goals and objectives.
Leveling can also help to identify dependencies, gaps, overlaps, or redundancies among business capabilities6.