Pegasystems Certified Lead System Architect (CLSA) PEGACPLSA23V1 Question # 13 Topic 2 Discussion

Comprehensive and Detailed Explanation From Exact Extract:

Pega’s application layering and design principles, as outlined in Pega Academy’sApplication Design Missionand thePega Certified Lead System Architect Study Guide, recommend a modular structure with an enterprise layer for shared data and implementation layers for specific functionality. This ensures reuse and scalability, especially for applications integrating multiple external interfaces like social media platforms.

Option A (Incorrect): Creating separate insights applications for each social media interface fragments the solution, reducing reuse and increasing maintenance. A single application with modular interfaces is preferred, per theApplication Layeringmodule.

Option B (Correct): Establishing an enterprise layer for a common data model (e.g., for social media post data) and building a single insights application with distinct interfaces for each social media platform is optimal. This approach centralizes analysis while allowing interface-specific data consumption, aligning with Pega’s Center-out architecture, as documented in theEnterprise Data Modelsection of Pega Community.

Option C (Incorrect): A framework for the social media platform with distinct implementations for each interface is overly complex and typically used for reusable, cross-organization solutions. This scenario requires a single application, not a framework, per theFramework vs. Implementationguidelines.

Option D (Incorrect): Creating a global framework, an enterprise implementation, and further implementations for each interface adds unnecessary layers. It overcomplicates the structure for a single organization’s needs, as noted in theApplication Designmodule.