6.6 Estimating by analogy
The function point approach (and, indeed, the more generic approach of size driver and productivity rate) is based on the assumption that there exists a structured record of the details of past projects. Often, however, such a record does not exist. For smaller organizations, particularly, the IT projects that have been previously implemented may all seem to have their own peculiarities. For example, some may have involved the installation of off-the-shelf packages; others may have required specially written software, some a mixture of the two, and so on. This may seem to imply that previous experience is not a stable basis for estimating the effort for new projects. However, in this kind of situation the analogy or ...
Get Project Management for IT-Related Projects now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
