In the field"Corporate diagnosis is a process that involves the three steps of publicly entering a human system, collecting valid data about experiences, and feeding back to the system toward promoting corporate performance(Zarei et al.(2014))".
The effective diagnosis of organizational culture, and structural and operational strengths and weaknesses are fundamental to any successful organizational development intervention. As Beckhard said in the preface to his seminal work
... in our rapidly changing environment, new organization forms must be developed; more effective goal-setting and planning processes must be learned, and practiced teams of independent people must spend real time improving their methods of working, decision-making and communicating. Competing or conflicting groups must move towards a collaborative way of work. In order for these changes to occur and be maintained, a planned, managed change effort is necessary - a program of organizational development.
This was written in 1969 and while much has been learnt it is just as true today.
Since the beginnings of organizational development as a profession, diagnosis has moved from the purely behavioral towards a strategic and holistic business diagnostic approach. Moving away from looking at human interventions in isolation, to exploring the interactions of people in the context in which they operate. equally as organizations are increasingly collaborative in nature, the traditional silo approach to diagnostics is becoming increasingly rare. Organizational development and in particular the diagnostic phase of activities is spreading from the occupational psychologists towards main stream business. This is important for OD practitioners as the role is increasingly holistic
The organizational diagnosis models
Until now, the following models are introduced for organizational diagnosis: 1. Force Field Analysis (1951) 2. Leavitt’s model (1965) 3. Likert system analysis (1967) 4. Open system theory (1966) 5. Weisbord’s six-box model (1976) 6. Congruence model for organization analysis (1977) 7. Mckinsey 7s framework (1981-1982) 8. Tichy’s technical political cultural (TPC) framework (1983) 9. High-performance programming (1984) 10. Diagnosing individual and group behavior (1987) 11. Burke–Litwin model of organizational performance and change (1992) 12. Falletta’s organizational intelligence model (2008) 13. Semantic Network Analysis (2014)(by Zarei, Chaghouee and Ghapanchi)
The Consulting Process
The organizational Diagnostic phase is often integrated within an overall OD process, commonly called 'a consulting process'. An example of such a process is:
Entry --> Diagnosis --> Action Planning --> Implementation --> Termination 
As the second phase in the consulting cycle, it is also the first fully operational phase of the consulting process or cycle. The purpose of the diagnosis is to examine the problem faced by the organization in detail, to identify factors and forces that are causing the problem and to prepare the collected information to decide how to implement possible solutions to the identified problems.
The diagnosis of the problem is a separate phase from the solutions themselves.
- Organizational Development: strategies and models - Beckhard 1969
- Management Consulting - Kubr
- Cameron & Quinn; Diagnosing and Changing Organizational Culture, 1999
- Harrison, Michael I. Diagnosing Organizations: Methods, Models, and Processes, 2005
- Levinson, Harry; Organizational Diagnosis, 1972
- Organizational Diagnosis - A practical approach to company problem solving and growth, 1988
- Weisbord, Marvin R; Organizational Diagnosis - A workbook of theory and Practice, 1978
- Zarei,B.,Chaghouee,Y. and Ghapanchi, F.(2014)- Organizational Diagnosis in Project-Based Companies: Challenges and Directions, Sage open,4(2), PP.1-7,DOI: 10.1177/2158244014537498.
- Managing change
- Organizational Communication
- Organizational culture
- Organizational Development
- Organizational learning
- Organizational performance
- Performance improvement
- SWOT Analysis