ABSTRACT
Being in control implies a knowledge not only of the current position and ultimate target, but also of the route to be taken to achieve that target. The target will be to complete the work within time and budget, while the current position will be described in terms of progress achieved and cost or time expended. By monitoring past performance on a project it is possible to forecast future results. From these forecasts it may be evident that the achievement of the target is not possible without making changes in the project strategy. It should be noted that these changes may have an effect on both time and cost; due consideration needs to be taken of both. It is also necessary when reviewing past performance to understand the factors that influenced that performance; a judgement has to be taken when forecasting future results as to whether these factors will still apply or indeed whether new factors may come into play and influence the future outcome.
