Pegasystems Certified Lead System Architect (CLSA) PEGACPLSA23V1 Question # 8 Topic 1 Discussion

Comprehensive and Detailed Explanation From Exact Extract:

Pega’s application layering, as taught in Pega Academy’sApplication Design Missionand thePega Certified Lead System Architect Study Guide, promotes a modular, reusable architecture using framework and implementation applications. This structure is ideal for organizations with multiple divisions requiring shared and specialized functionality.

Option A (Correct): Creating an enterprise application as a framework defines reusable components (e.g., common processes, data models) for all divisions. Division and unit applications are built as implementation applications on top, inheriting and specializing the framework. This promotes reuse and modularity, as documented in theApplication Layeringsection of Pega Community.

Option B (Incorrect): An enterprise application as an implementation structure lacks the reusable framework layer, leading to duplicated effort across divisions. Framework applications are needed for shared components, per theFramework Designmodule.

Option C (Incorrect): Combining framework and implementation structures in the enterprise application is redundant and violates Pega’s layering principles. The enterprise layer should be a framework, with implementations below it, as noted in theApplication Architectureguidelines.

Option D (Incorrect): Separate implementation applications communicating via DX APIs are siloed and reduce reuse. A framework-implementation structure is more efficient for shared processes, per theModular Designmodule.