1. Classification
1.1. Source
1.1.1. External vs. Self
1.2. Subject
1.2.1. External, effect, response
1.2.2. Technical, market, managerial
2. Ambiguity
2.1. Equivocality
2.1.1. Facilitating
2.1.1.1. encourages innovation
2.1.2. Obstructing
2.1.2.1. creates misunderstandings and conflict
2.1.3. Management
2.1.3.1. Ambiguity can be reduced via communication
2.1.3.2. Selectionist Strategy
2.1.3.2.1. allow competing interpretation to co-exist until one interpretation is more favourable
2.1.3.3. Learning Strategy
2.1.3.3.1. encourage employee to continually re-evaluate taking into account new information
3. Vagueness
3.1. obstructing
3.1.1. Lack of clarity / inability to interpret
3.2. Impacts
3.2.1. Task Structure
3.2.1.1. Expansion
3.2.1.1.1. scope extends resulting in additional tasks or sub-tasks
3.2.1.2. Contraction
3.2.1.2.1. scope decreases resulting in task or sub-task removal
3.2.1.3. Substitution
3.2.1.3.1. task or sub-task swapped for another
3.2.1.4. Combination
3.2.1.4.1. merging of tasks that though formerly independent
3.2.1.5. Magnitude of changes
3.2.1.5.1. large changes need to be propagated across all inter-dependencies result in disruption
3.2.1.6. Rate of changes
3.2.1.6.1. frequent changes need to be propagated across all inter-dependencies result in disruption
3.3. Management
3.3.1. Task Structure
3.3.1.1. Minimise likelihood of change
3.3.1.2. Minimise cost of adapting to change
3.3.1.3. Knowledge management