There is no specific tool for IR. You should understand the paradigms shift on IR with tech savvy, freedom loving, job hopping, job enrichment and more entrepreneurial modern workforce, which does not believe in continuity of service, reflecting a negative culture of the organisation. Workforce is so active on social media and 'whats app' employer branding etc. It is a very sensitive issue and your approach may not be same for the similar situation in another culture. It various from industry to industry, and depends on the social, monitory and psychological needs of individual and group / cultural needs. Every problem has solutions. Try to use four 'W' one 'H' concept (Why, Where, When, What & How) Every grievance if you look at it , whether individual or group, it circumvent around the employer's / employer's team / managers / supervisors interactions. You have to play a mentor/safe role on expectations of the Employer vis-a-vis Employee, to achieve organisational goal.