Explanation/Reference:
Section: Design Objectives Explanation
Explanation:
The Cisco Plan, Build, Manage (PBM) Design Lifecycle is a newer methodology designed to streamline the concepts from Cisco's older design philosophy: the Prepare, Plan, Design, Implement, Operate, and Optimize (PPDIOO) Design Lifecycle. As the name implies, the PBM Design Lifecycle is divided into three distinct phases: Plan, Build, and Manage.
The Plan phase of the PBM Design Lifecycle consists of the following three processes:
Strategy and analysis

Assessment

Design

The purpose of the strategy and analysis process is to generate proposed improvements to an existing network infrastructure with the overall goal of increasing an organization's return on investment (ROI) from the network and its support staff. The assessment process then examines the proposed improvements from the strategy and analysis process and determines whether the improvements comply with organizational goals and industry best practices. In addition, the assessment process identifies potential deficiencies that infrastructure changes might cause in operational and support facilities. Finally, the design process produces a network design that meets current organizational objectives while maintaining resiliency and scalability.
The Build phase of the PBM Design Lifecycle consists of the following three processes:
Validation

Deployment

Migration

The purpose of the validation process is to implement the infrastructure changes outlined in the design process of the Plan phase and to verify that the implementation meets the organizational needs as specified by the network design. The validation process implements the network design in a controlled environment such as in a lab or staging environment. Once the network design has been validated, the purpose of the deployment process is to implement the network design in a full-scale production environment. Finally, the purpose of the migration process is to incrementally transition users, devices, and services to the new infrastructure as necessary.
The Manage phase of the PBM Design Lifecycle consists of the following four processes:
Product support

Solution support

Optimization

Operations management

The product support process addresses support for specific hardware, software, or network products.
Cisco Smart Net is an example of a component of the product support process. By contrast, solution support is focused on the solutions that hardware, software, and network products provide for an organization. Cisco Solution Support is the primary component of the solution support process. Cisco Solution Support serves as the primary point of contact for Cisco solutions, leverages solution-focused expertise, coordinates between multiple vendors for complex solutions, and manages each case from inception to resolution. The optimization process is concerned with improving the performance, availability, and resiliency of a network implementation. It also addresses foreseeable changes and upgrades, which reduces operating costs, mitigates risk, and improves ROI. The operations management process addresses the ongoing management of the network infrastructure. It includes managed solutions for collaboration, data center, security, and general network services.
Reference:
CCDA 200-310 Official Cert Guide, Chapter 1, Cisco Design Lifecycle: Plan, Build, Manage, pp. 9-12 Cisco: Services: Portfolio