The knowledge of development and maintenance effort is a necessary precondition for alltypes of software management, IS-controlling, guidance of quality and effort estimation. Data collectingsystems seem to be widely used, but the data is said to be unsafe and firm-specific. This paperpresents a...

Attributes, resp. data items are one of the most elementary ressources of information management.Although source of much effort, data items are often neglegted. This paper reports a concept of naturalnaming conventions, which is founded on types of attributes. Typing allows the reuse of...