Seventy years of information systems development methodologies from early business computing to the Agile era: A two-part history Part 2: Later ISD to Early post ISD methodology era: Adapting to accelerated context expansion (1980–today)
本文是信息系统开发方法学历史研究第二部分，覆盖1980年至今的后期ISD和早期后ISD方法学时代，分析环境变化如何催生新的方法论创新，适合对ISD历史演变感兴趣的学者。
Information systems design (ISD) methodologies emerged soon after business computers in the 1950s. They have been a central topic of research and professional discourse in the information systems (IS) field ever since. This is Part 2 of a two-part history of ISD methodologies from the pre-methodology era that laid the foundational thinking that has been incorporated into ISD methodologies until now. We apply a historical method to follow the narrative of ISD methodology evolution in a historical context to identify central innovations and milestones that changed the environment allowing new types of ISD outcomes and processes to emerge demanding novel methodological responses. We will study what changed, what stayed the same and where the major shifts occurred. Part 2 reports on the major innovations and milestones that changed the IS environment and lead to emergence of the Later ISD (1980–1990) and Early post ISD methodology era practices (1990–today) and associated methodological innovations and principles. In Part 1, we have reported on the Pre ISD (1880–1960) and the Early ISD methodology era (1960–1980) histories.