Future-State Conceptual Architecture Diagram

**Description**

Develop a Future-State Conceptual Architecture Diagram that illustrates the target architecture vision following Mainframe entities migration. The diagram will provide a high-level, strategic view of the desired future environment in the modernized system, including business capabilities, data services, integration capabilities, and key architectural principles.

The diagram should focus on the desired end state rather than implementation details.

**Target audience**

- Executives
- Leadership
- Business team
- Product Owners
- Modernization teams

**Business Value**

A future-state architecture provides a clear vision of the desired target environment and helps align modernization initiatives with business objectives. It enables to understand how current systems and capabilities will evolve, supports investment and planning decisions, and serves as a guide for transformation activities.

**Scope**

Document and visualize:

- [ ] Business users and stakeholder groups
- [ ] Future service delivery channels
- [ ] Strategic business capabilities
- [ ] Modernized application ecosystems
- [ ] Target technology platforms
- [ ] API, integration, and service capabilities
- [ ] Enterprise data domains and platforms
- [ ] External partner interactions
- [ ] High-level relationships between business and technology domains
- [ ] Key architectural principles and modernization objectives

Start with the issue scope and define the future-state view for the listed audiences, keeping the diagram conceptual rather than implementation-focused. Done means the diagram covers each requested business, application, platform, integration, data, partner, relationship, and architectural-principle item.

Written by the indexing model from the issue text.