355 citations · 414 across the 6 of their papers we have counts for
6 papers
Responsibility Modeling for the Sociotechnical Risk Analysis of Coalitions of Systems
David Greenwood, Ian Sommerville
Society is challenging systems engineers by demanding ever more complex and integrated systems. With the rise of cloud computing and systems-of-systems (including cyber-physical sy…
Expectations and Reality: Why an enterprise software system didn't work as planned
David Greenwood, Ian Sommerville
Over two decades, we and other research groups have found that ethnographic and social analyses of work settings can provide insights useful to the process of system analysis and d…
The Cloud Adoption Toolkit: Supporting Cloud Adoption Decisions in the Enterprise
Ali Khajeh-Hosseini, David Greenwood, James W. Smith +1
Cloud computing promises a radical shift in the provisioning of computing resource within the enterprise. This paper describes the challenges that decision makers face when assessi…
Lessons from the Failure and Subsequent Success of a Complex Healthcare Sector IT Project
David Greenwood, Ali Khajeh-Hosseini, Ian Sommerville
This paper argues that IT failures diagnosed as errors at the technical or project management level are often mistakenly pointing to symptoms of failure rather than a project's und…
The Cloud Adoption Toolkit: Addressing the Challenges of Cloud Adoption in Enterprise
Ali Khajeh-Hosseini, David Greenwood, James W. Smith +1
Cloud computing promises a radical shift in the provisioning of computing resource within the enterprise. This paper: i) describes the challenges that decision makers face when att…
Cloud Migration: A Case Study of Migrating an Enterprise IT System to IaaS
Ali Khajeh-Hosseini, David Greenwood, Ian Sommerville
This case study illustrates the potential benefits and risks associated with the migration of an IT system in the oil & gas industry from an in-house data center to Amazon EC2 from…