1. Compare between the following models of change: Grundy , Tushman et al, and Dunphy and Stace.
1- Grundy:
Grundy’s 3 varieties of change (based on observation):
Bumpy incremental: is portrayed by times of relative tranquility punctuated by quickening in the pace of progress and change.
Smooth incremental: develops gradually, in a methodical and unsurprising way.
Discontinuous change: The changes which is set apart by fast moves in procedure, culture and structure or in every one of the three.
2- Tushman et al:
Depends on :
- Manage the transition.
- Motivate.
- Build in stability of processes and structures.
- Shape the political dynamics of change.
3- Dunphy and Stace:
Dunphy and Stace, set forth a situational or possibility model of change, which accentuated on the way that organizations ought to shift their change methodologies as per the natural changes. It additionally talked about that organizations vary as far as structure, procedures and key esteems which they embrace, and it is because of these distinctions; the organizations may not be affected by the comparable situational factors.
As indicated by them, change can be sorted into four types: modular transformation, fine tuning, corporate transformation and incremental adjustment.

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2. Does organizational culture support or hinder change management?
It 's important for support change management, because the organizational culture enables organization 's ' administrators to lead their organization