Heat mapping is an analysis technique used to provide a visual representation of data, often to show performance against a set of criteria. In the context of business capabilities, heat maps can be used to represent various dimensions such as maturity levels, investment priorities, risk levels, etc., on the same set of business capabilities. This allows different stakeholders to quickly grasp where attention is needed or how capabilities align with strategic priorities.

According to the TOGAF Series Guide: Business Capabilities, after documenting all of the business capabilities, the next step is to organize them in a logical manner1. This can be done by using techniques such as layering, sorting, mapping, and leveling1. These techniques can help to classify, group, and align capabilities into categories for a deeper understanding of how they support the business goals and objectives1. Organizing the business capabilities can also help to identify dependencies, gaps, overlaps, or redundancies among them1.

A business model describes how an organization creates, delivers, and captures value for its stakeholders3. A business architecture breaks a business model down into the core functional elements that describe how the business works, such as the value proposition, the customer segments, the channels, the revenue streams, the cost structure, the key resources, the key activities, and the key partnerships3.
The relationship between business models and business architecture is that while business models provide a high-level description of business elements such as customers, markets, and the economic rationale of the business, the business architecture takes this model and breaks it down into more detailed descriptions. It identifies the core functional components and their relationships, which describe how the business operates, the roles involved, the information flowing through the business, and the technology supporting business activities.

In developing an Architecture Vision within TOGAF, the architect should examine and search for foundational Business Architecture concepts to ensure that the enterprise architecture is aligned with the organization's strategy and delivers value to stakeholders. Here's a detailed breakdown of the relevant Business Architecture concepts that need to be examined in this context:
* Business CapabilitiesBusiness Capabilities represent the core abilities or capacities of an organization that allow it to achieve specific purposes or outcomes. In TOGAF, identifying and analyzing Business Capabilities helps architects understand the organization's functional strengths and gaps. This examination provides insight into which capabilities are critical for achieving strategic goals and how they may need to evolve to support the target architecture.
* Value StreamsValue Streams depict the end-to-end processes that deliver value to customers, stakeholders, or end users. By identifying Value Streams, the architect can understand how value is created and delivered, ensuring that architecture decisions support these value-generating processes.
Value Streams in TOGAF are integral to identifying areas where improvements, efficiencies, or innovations can be applied, enhancing the organization's ability to meet its strategic objectives.
* Organization MapsOrganization Maps outline the relationships between various entities within the enterprise, including internal departments, partners, and stakeholders. These maps provide a structural overview, showing the formal and informal relationships that influence how work is conducted across the organization. In the Architecture Vision phase, Organization Maps help architects understand organizational dependencies, stakeholder concerns, and potential alignment issues between business units.
Application in the Architecture Vision Phase:By examining these concepts-Business Capabilities, Value Streams, and Organization Maps-the architect can gain a comprehensive understanding of the current state of the business and how it is structured to deliver value. This analysis is essential for setting a realistic and strategically aligned vision that addresses core business needs and prepares the organization for future growth and transformation.
TOGAF References:
* TOGAF Standard, Architecture Vision Phase
* TOGAF Business Architecture guidelines on Business Capabilities, Value Streams, and Organization Mapping