Internal and External Factors in SWOT Analysis
Does it make sense to classify and distinguish internal and external Factors?
In practice, such distinctions are difficult. An arbitrary classification of external factors into opportunities and threats, and internal factors into strengths and weaknesses, is less important than a careful identification of these external and internal factors followed by an appraisal of their implications.
So I recommend to distinguish all internal and external factors and weigh them, don't necessarily classify them.