1. Identification of Critical Bhaviour : In order too appy OB Mod, it is necessary that critical behaviours which have significant impact on the performance outcome of the employees should be identified. Employees may be engaged in deveral behaviours in the organization. Out of these, some behavours may be critical like absenteeism or attendance, tardiness or promotness, complaints or constructive criticism and doing or not doing a particular task or procedure and some behaviours may not be critical like bad discussion with the particular employee and his immediate superior as both are closely intimated with the job behaviours. A systematic behaviour audit can also be carried on to identify such behaviour. The audit would systematically analyse each job in question on the pattern of job analysis. 2. Measurement of Behaviour : After the critical behaviours are identified these are measured in terms of the rate at which these are occurring. If the rate of occurrence is within the acceptable limit (for example, rate of absenteeism at the rate of one percent), no action may be required. However, if it is more, it is required to be changed. Measurement of behaviours can be if it is more, it is required to be changed. Measurement of behaviours can be through either by observing and counting or by extracting from existing records. 3. Functuional Analysis of Behaviour: Functional analysis involves a detailed examination of present behaviours of the employees to determine what consequences each of the behaviours preduces, what conditions lead to their occurances, ets. It pinpoints one of the most significant practical problems using an OB Mod approach to change critical performance behaviours. Since only contingnt consequence of behaviour have an impact on subsequent behaviour, functional analysis must make sure that the contingent consequences are identified. Further, functional analysis often revela that there are many competing contingencies for every organizational behaviour, therefore, the analysis must not be deluded by the contingent consequences that on the surface, appear to be affectiong the critical behaviour. 4. Intervention : Identification of critical behaviours to change and the factors that cause such behaviours will determine the development of an appropriate intervention strategy. Intervention is the action taken for changing the undesirable critical behaviours. Its main objective is to strengthen and accelerate desirable performance behaviour and/or weaken and decelerate undesirable behaviours. There may be many intervention strategies that can be used, but the main ones based on the principles of reinforcement, as discussed earlier, are positive reinforcement, negative reinforcement and withdraswal of positive reinforcement. The strategies selected must ve appropriate to the situation and should produce the desired result. 5. Systematic Evaluation : The final in OB Mod is the systematic evaluation whether the intervention strategies are working properly or not. Since the basic purpose of OB Mode is to bring change in undesiravle behaviours so as to improve performance, the evaluation must be made on this line. Changed behaviours can be compard with baseline behaviours and deviations can be noted. If there is positive change, it suggests that the strategies are successful. However, if the change is not significant, it may call for adoption of moore appropriate strategies. 6.