Guidelines for Software Development Estimation Effort / IEEE Computer
An analysis of 32 factors that influence the software development estimation accuracy can be found in Computer’s October issue (Dirk Basten, Ali Sunyaev, pp. 88-90).
In my opinion, these are the most important results:
- Try to exclude candidates with a high general degree of optimism as well as optimism in the estimation process
- Split larger tasks into smaller ones, which can usually be estimated more precisely
- Communicate frequently with the client to obtain direct feedback
- Estimator experience is one of the most important factors in archiving development effort estimation accuracy, although it’s impractical to appoint the highest-qualified estimator on every project