Case study 2: legacy systems re-engineering for university libraries
Legacy information systems are often part of an organisation’s assets. Some of them play an important role in serving the organisation. From time to time, however, there is a need to improve these information systems to produce a better performance or better interoperability with other systems. It is sometimes necessary to re-engineer these systems. Organisational semiotics and methods have been used in such applications. This chapter illustrates an organisational semiotics approach to legacy systems re-engineering in a university library in which the three key Methods for Eliciting, Analysing and Specifying Users’ Requirements methods – the problem articulation method (PAM), semantic analysis method and norm analysis method – were applied.