8

Software Estimation Tools, Techniques and Models

8.1 Introduction

Various types of estimation techniques are available for software engineers and project managers which help them to do the software estimation precisely and accurately. Some of the estimation techniques are expert judgements, top-down estimation, bottom-up estimation, analogous estimation and parametric estimation. Various types of models are available for the estimations which can be used directly while estimating the cost of softwares. In particular, cost estimation models are of bigger help for the estimators and those are being used predominantly. Metrics are of no use if they are not analysed properly and due to this we need to understand various tools which are helpful ...

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