Business Architecture is a discipline for describing and modeling an organization’s strategy, processes, information, and stakeholders. It provides a common understanding of the organization’s structure and the relationships between its components, and serves as a foundation for making informed decisions about change. Business Architecture enables organizations to align their capabilities and resources with their goals and to design and implement more effective business solutions.

Business Architecture is important for enterprises because it helps to:

1. Align strategy and execution: By clearly articulating the organization’s goals, processes, and information flows, Business Architecture enables enterprises to align their capabilities and resources with their strategy and ensure that their initiatives are aligned with their overall objectives.
2. Improve decision-making: Business Architecture provides a common understanding of the organization, its components, and the relationships between them, which can be used to make informed decisions about change.
3. Foster collaboration: By providing a shared language and framework for describing the organization, Business Architecture can help to break down silos and foster collaboration between different departments and stakeholders.
4. Streamline operations: Business Architecture provides a holistic view of the organization’s processes and information flows, enabling enterprises to identify and eliminate inefficiencies, improve processes, and reduce costs.
5. Facilitate innovation: Business Architecture provides a foundation for designing and implementing new business solutions and helps organizations to stay ahead of the curve by constantly innovating and adapting to changes in the business environment.

Here is an example of a L1 to L4 Business Capability Model for an enterprise in FinTech:

L1: Business Capabilities

• Customer Onboarding
• Loan Processing
• Investment Management
• Payments and Transfers

L2: Processes

• Customer Onboarding: Identity Verification, Account Creation, Documentation Collection
• Loan Processing: Loan Application, Credit Assessment, Loan Approval, Loan Disbursement
• Investment Management: Portfolio Management, Investment Recommendation, Investment Monitoring
• Payments and Transfers: Domestic Transfers, International Transfers, Bill Payments, Mobile Payments

L3: Information & Data

• Customer Information: Personal Information, Financial Information, Identity Information
• Loan Information: Loan Application Information, Credit Assessment Information, Loan Approval Information, Loan Disbursement Information
• Investment Information: Portfolio Information, Investment Recommendation Information, Investment Monitoring Information
• Payments and Transfers Information: Transfer Information, Bill Payment Information, Mobile Payment Information

L4: Technical Components

• Customer Onboarding: Customer Management System, Identity Verification System, Document Management System
• Loan Processing: Loan Management System, Credit Assessment System, Loan Approval System, Loan Disbursement System
• Investment Management: Investment Management System, Portfolio Management System, Investment Recommendation System, Investment Monitoring System
• Payments and Transfers: Payments System, Transfers System, Bill Payments System, Mobile Payments System.

Note: The above model is a high-level example and can be further detailed based on the specific requirements of the enterprise.