Learning curves do have limitations. One key caution when using a learning curves is:

• The culture of the workplace, resource availability, and changes in the process will not alter the learning curve, so there is no need to expend time revaluating learning curves within the company
• Learning curves are often based on time estimates which means they are always accurate and thus do not need to be reevaluated
• Learning curves rarely differ from company to company, so learning curve information can shared between companies
• Learning curves differ from company to company as well as Industry to industry so estimates should be developed for each organization