official strike - where the employees do not enter their workplace and do not do their work - involves a secret ballot, proper notifcation to the employer and sanction by ICTU
work-to-rule - where employees only undertake the exact jobs written in their job description or contract of employment - no flexibility is provided by staff to meet urgent or unforeseen requirements - workers follow the rules of employment contracts to the 'letter of the law'
overtime ban - where workers refuse to do overtime - can cause major disruption, leading to lost orders and lost sales, especially at peak trading times
token stoppage - a brief stoppage of work intended to carry the threat of further, more serious action if agreement is not reached