THE IMPACT OF THE DEVELOPMENT OF IT TECHNOLOGIES ON OVERCOMING THE PROBLEMS OF LEGACY INFORMATION SYSTEMS
Keywords:
information systems, information and communications technology, legacy systemsAbstract
After the information system is put into use, the process of maintaining it begins. Long-term maintenance of the system leads to disruption of its initially designed structure and performance decline. This causes the information system once fully usable, unable to respond to changes, ie. becomes a legacy system. The cost of maintaining legacy systems is high and there is a high risk of removing them from use. On the other hand, they are very important in conducting business operations, but due to their problems, organizations see them as barriers to business. Their inflexibility is especially pronounced in the modern world, which is characterized by constant changes, which make legacy systems a serious factor limiting growth and progress. The constant development of IT technologies in all its forms gives certain possibilities to overcome the problems of legacy systems. To what extent this will be possible, in addition to the application of technology itself, determines the adoption and application of new knowledge and concepts related to the design and restructuring of the existing legacy system.
Downloads
References
Bonser, P. (2005). Understanding and Programming for the AppServer. Преузето са http://download.psdn.com/media/exch_audio/2005/DEV/DEV-14_Bonser.ppt (20.10.2016.)
Chun, M., Mooney, J. (2009). CIO roles and responsibilities: Twenty-five years of evolution and change. Information & Management, 46(6), 323-334.
Gorton, I. (2011). Essential Software Architecture (2nd ed.). Berlin Heidelberg: Springer.
Grubb, P., Takang, A. (2003). Software Maintenance: Concepts and Practice (2nd ed.). Singapore, Singapore: World Scientific Publishing Co. Pte. Ltd.
Jovanović, B. (2007). Problemi softverskog nasleđa u našem okruženju. SYM-OP-IS 2007, XXXIV Simpozijum o operacionim istraživanjima (311-314). Zlatibor: Fakultet organizacionih nauka.
Knoche, H., Hasselbring, W. (2018). Using Microservices for Legacy Software Modernization. IEEE Software, 35(3), 44-49.
Kuldell, H. 10 Government Legacy Systems Cost Taxpayers $337 Million Every Year. Преузето са: https://www.nextgov.com/it-modernization/2019/06/10-governmentlegacy-systems-cost-taxpayers-337-million-every-year/157682/ (14.06.2019.)
Lazarević, B., Marjanović, Z., Aničić, N., Babarogić, S. (2016). Baze podataka (7. изд.). Beograd: Fakultet Organizacionih Nauka.
Parnas, D. (1994). Software aging. ICSE94: 16th International Conference on Software Engineering (279-287). Sorrento, Italy: IEEE Computer Society Press.
Pressman, R., Maxim, B. (2014). Software Engineering: A Practitioner's Approach (8th ed.). New York: McGraw-Hill Education.
Ross, J., Feeny, D. (1999). The Evolving Role of the CIO. Cambridge: Massachusetts Institute of Technology. Преузето са https://dspace.mit.edu/bitstream/handle/1721.1/2758/SWP-4089-43797710-CISR-308.pdf
Somerville, I. (2010). Software Engineering (9th ed.). Boston, USA: Pearson.
Somerville, I. Legacy systems. Преузето са https://ifs.host.cs.standrews.ac.uk/Books/SE9/Web/LegacySys/index.html (16.08.2017)
Stair, R., Reynolds, G. (2017). Principles of Information Systems (13 ed.). Boston, Massachusetts, USA: Cengage Learning.
Tromp, H., Hoffman, G. (2003). Evolution of legacy systems, strategic and technological issues, based on a case study. Proceedings of ELISA, International Workshop on Evolution of Large-scale Industrial Software Applications (147-153). Amsterdam: Royal Netherlands Academy of Arts and Sciences
Ulrich, W. A Model-driven Approach to Modernizing Existing Systems. Преузето са https://www.omg.org/news/meetings/workshops/ADM2004%20Workshop%20CD/03_Tutorial_Ulrich.pdf (22.03.2018.)
Ulrich, W., Newcomb, P. (2010). Information Systems Transformation: ArchitectureDriven Modernization Case Studies. Burlington, Massachusetts, USA: Morgan Kaufmann Publishers.
United States Government Accountability Office. (2019). GAO-19-471 - Agencies Need to Develop Modernization Plans for Critical Legacy Systems. Report to Congressional Requesters - Information Technology, GAO. Преузето са https://www.gao.gov/assets/700/699616.pdf (14.06.2019.)
