Colin Tully

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This paper aims at identifying some of the key factors in adopting or running a company-wide software reuse program. Key factors are derived from empirical evidence of reuse practices, as emerged from a survey of projects for the introduction of reuse in European companies: 24 such projects performed from 1994 to 1997 were analysed using structured(More)
This working group report defines the need for a discipline devoted to engineering of computer-based systems, identifies current practice and needed research, and suggests improvements that are achievable today. uring the past decade, advances in microprocessor and network technology have led to the proliferation of complex systems with distributed ,:(More)
We report observation of the electroweak production of single top quarks in pp[over ] collisions at sqrt[s]=1.96 TeV based on 2.3 fb(-1) of data collected by the D0 detector at the Fermilab Tevatron Collider. Using events containing an isolated electron or muon and missing transverse energy, together with jets originating from the fragmentation of b quarks,(More)
dealing with reuse. In detail the steps followed are the following. This paper presents the initial results of the Surprise project. Surprise is an EspritIEssi project. aimed at identifying key factors in adopting or running a company wide reuse program. Key factors are derived from empirical evidence of best reuse practices, as emerged from an extensive(More)
During a panel at the Fifth International Conference on Software Engineering in San Diego, Fred Brooks told a story that has stayed with me ever since. He said he'd been running the same project over and over again as part of his UNC laboratory course on software development. Each of the projects had the same deliverable, same schedule and same team size.(More)
A search for associated production of charginos and neutralinos is performed using data recorded with the D0 detector at a pp center-of-mass energy of 1.96 TeV at the Fermilab Tevatron Collider. This analysis considers final states with missing transverse energy and three charged leptons, of which at least two are electrons or muons. No evidence for(More)
We measure the mass of the top quark using top-quark pair candidate events in the lepton+jets channel from data corresponding to 1 fb;{-1} of integrated luminosity collected by the D0 experiment at the Fermilab Tevatron collider. We use a likelihood technique that reduces the jet energy scale uncertainty by combining an in situ jet energy calibration with(More)