Introduction:
Planning is a crucial process in decision-making that involves identifying goals and objectives, determining the best course of action, and allocating resources to achieve those goals. It is a systematic approach that helps individuals or organizations to anticipate and prepare for the future. In this context, the statement "Planning is fundamentally choosing and a planning problem arises when an alternative course of action is discovered" emphasizes the essence of decision-making and the challenges that can arise during the planning process.

Choosing as an integral part of planning:
When we engage in planning, we essentially engage in the process of making choices. Planning requires us to select from various available alternatives and make decisions based on our goals and objectives. This selection process involves evaluating the pros and cons of each alternative and choosing the one that aligns best with our desired outcomes.

Discovery of alternative course of action:
During the planning process, it is not uncommon to come across new alternatives that were not initially considered. These alternative courses of action can emerge through brainstorming, research, or external factors. The statement suggests that a planning problem arises when such alternatives are discovered.

Planning problem:
A planning problem occurs when the discovery of an alternative course of action challenges the existing plan or requires a reassessment of the chosen approach. This problem arises because the newly found alternative may offer benefits or advantages that were not previously considered. It creates a dilemma where the planner needs to reevaluate the choices made and decide whether to stick with the original plan or switch to the alternative course of action.

Considerations when facing a planning problem:
When a planning problem arises due to the discovery of an alternative course of action, several considerations need to be taken into account:

1. Evaluation of the alternative: The planner must thoroughly assess the newly discovered alternative and compare it with the existing plan. This evaluation involves analyzing the potential benefits, drawbacks, feasibility, and alignment with goals.

2. Reassessing goals and objectives: The discovery of an alternative course of action may lead to a reevaluation of the initial goals and objectives. The planner needs to determine whether the alternative better serves the intended outcomes or if the original plan remains the most suitable choice.

3. Resource allocation: If the alternative course of action requires a change in the plan, the planner must reassess the allocation of resources. This includes considering the availability of resources, potential reallocation, and the impact on existing commitments.

4. Decision-making process: Ultimately, the planner needs to make a decision by considering all relevant factors, including the potential risks, benefits, and long-term implications of both the original plan and the alternative course of action.

Conclusion:
The statement highlights the interconnectedness of planning and decision-making. Planning involves making choices, and a planning problem arises when an alternative course of action is discovered, presenting a challenge to the existing plan. Effective planning requires careful evaluation, reassessment of goals, resource allocation, and a well-informed decision-making process to address the planning problem and determine the most suitable path forward.