explain why legacy system can causes difficulties for companies that wish to reorganise their business processes?
Business plans should focus on who, what, why, when and how. Learn more here
Business plans should focus on who, what, why, when and how. Learn more here
on Feb 14th, 2009 at 2:37 pm
In addition to the answer below, check out ERP systems.
Legacy systems often run on obsolete (and usually slow) hardware, and sometimes spare parts for such computers become increasingly difficult to obtain. These systems are often hard to maintain, improve, and expand because there is a general lack of understanding of the system (as the staff who were experts on it have retired or forgotten what they knew about it, and staff who entered the field after it became “legacy” never learned about it in the first place), which can be worsened by lack or loss of documentation. Integration with newer systems may also be difficult because new software may use completely different technologies. The kind of bridge hardware and software that becomes widely available for different technologies that are widely popular at the same time does usually not get developed for differing technologies in different times, because of the lack of a large demand for it and the lack of associated reward of a large market economies of scale, though some of this “glue” does get developed by nice vendors and enthusiasts of particular legacy technologies (often called “retrocomputing” communities.)