Final answer:
The future logical system in a DFD typically involves changes to internal entities, activities, and data stores, but not control activities as they are not system components.
Step-by-step explanation:
When a development team is working on the logical design phase of a new system, they will seek to propose logical design alternatives that include modifications and refinements to various components of the system's architecture. These modifications typically involve changes to internal entities, which are the fundamental parts that make up the system; activities, which are the processes or functions that the system performs; and data stores, which are repositories that hold data used by the system. However, control activities are not generally considered derivatives to be proposed for logical design alternatives because they pertain to the management, monitoring, and regulation of the design process itself, rather than system-level components within the logical Data Flow Diagram (DFD).
During this phase, the detailed design is developed, including the assignments of functional elements to physical components, determining shapes and dimensions, selecting materials, and identifying suppliers for components. The design team may go through several iterations of design, prototyping, testing, and refinement to ensure that the most effective solutions are identified and that the design can be manufactured. It's essential that alternative solutions for the design problem are brainstormed and then narrowed down through a structured process to select the best design that meets all requirements and constraints.