The determination of sound business plan is what it set out to achieve in both the short-term and long-term. In other words, the soundness of a business plan would reflect in its attainment of success over a specific period of time. A business plan basically, is expected to have a model for continuity that would make it to outlive the person that started it. The business should be able to stand against all odds, not the type of business that would liquidate in face of challenges.
The sound business plan must have a term of innovative thinkers behind it, so that when it matters the most, especially when there is need to introduce new ideas that would take the business to the next level, it would be able to live up to the expectations.
With this flexible innovative system in place, the business would also be able to compete favourably with its competitors and come out on top of them all. While other businesses are running out of ideas to thrive, a sound business plan would remain afloat regardless of the storm threatening to crumble it. That's what a sound business plan should entail.