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Knowledge Ma.a.ement of Softwa.e Productivity a.d Development Time

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Journa. of Softwa.e Engineering a.d a.plica.ions 2011年第11期4卷 609-618页

作者： james a. rodger Pa.ka. Pa.ka. a.a.Na.oura.i MIS a.d Decision Sciences Eberly College of Business & Information Technology Indiana University of Pennsylvania

In this pa.er, we identify a.set of fa.tors tha. ma. be used to foreca.t softwa.e productivity a.d softwa.e development time. Softwa.e productivity wa. mea.ured in function points per person hours, a.d softwa.e development time wa. mea.ured in number of ela.sed da.s. Using field da.a.on over 130 field softwa.e projects from va.ious industries, we empirica.ly test the impa.t of tea. size, integra.ed computer a.ded softwa.e engineering (ICa.E) tools, softwa.e development type, softwa.e development pla.form, a.d progra.ming la.gua.e type on the softwa.e development productivity a.d development time. Our results indica.e tha. tea. size, softwa.e development type, softwa.e development pla.form, a.d progra.ming la.gua.e type significa.tly impa.t softwa.e development productivity. However, only tea. size significa.tly impa.ts softwa.e development time. Our results indica.e tha. effective ma.a.ement of softwa.e development tea.s, a.d using different ma.a.ement stra.egies for different softwa.e development type environments ma. improve softwa.e development productivity.

关键词： Softwa.e Engineering Softwa.e Metrics Fourth Genera.ion La.gua.es Ca.E Tools Field Study Tools a.d Techniques Models a.d Principles Tea. Size Vola.ility Development Pla.form a.d Type Productivity Ela.sed Development Time

P2P Business a.plica.ions: Future a.d Directions

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Communica.ions a.d Network 2012年第3期4卷 248-260页

作者： Pa.ka. Pa.ka. Micki Hyde james a. rodger MIS a.d Decision Sciences Eberly College of Business & Information Technology Indiana University of Pennsylvania Indiana USA

Since the la.nch of Na.ster in June 1999, peer-to-peer technology (P2P) ha. become synonymous with file sha.ing a.plica.ions tha. a.e the ba.e of the recording industry due to copyright infringements a.d consequent revenue losses. P2P promised a.revolution in business computing which ha. not a.rived. It ha. become synonymous with illega. file sha.ing a.d copyright viola.ions. Mea.while the informa.ion systems industry ha. undergone a.pa.a.igm cha.ge, a.d we a.e supposedly living in a.world of cloud computing a.d mobile devices. It is pertinent to exa.ine if P2P, a. a.revolutiona.y technology, is still releva.t a.d importa.t toda. a.d will be in future. One ha. to exa.ine this question in the context of the fa.t tha. P2P technologies ha.e ma.ured but ha.e however ha. limited a.option outside file sha.ing in the consumer spa.e. This pa.er provides a.deta.led a.a.ysis of P2P computing a.d offers some propositions to a.swer the question of the releva.cy of P2P. It is proposed tha. P2P is still a.releva.t technology but ma. be resha.ed in the coming yea.s in a.different form a. compa.ed to wha. exists toda..

关键词： Peer-to-Peer Business a.plica.ions P2P Cha.a.teristics Issues Business Models

a.Petri Net Pa.eto ISO 31000 Workflow Process Decision Ma.ing a.proa.h for Supply Cha.n Risk Trigger Inventory Decisions in Government Orga.iza.ions

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Intelligent Informa.ion Ma.a.ement 2014年第3期6卷 157-170页

作者： james a. rodger Pa.ka. Pa.ka. a.a.Na.oura.i MIS a.d Decision Sciences Eberly College of Business & Information Technology Indiana University of Pennsylvania Indiana USA MIS a.d Decision Sciences Eberly College of Business & Information Technology Indiana University of Pennsylvania Indiana USA

The Petri Net Pa.eto method proposed in this study ha. the a.va.ta.es of a.ting directly on computing results by a.sessment of workflow process informa.ion. Our study contributes to the litera.ure beca.se it ha. investiga.ed a. ISO 31000 workflow process a.proa.h to group decision ma.ing for reducing ba.korders in the supply cha.n, from a. integra.ed perspective utilizing Pa.eto cha.ts a.d Petri nets. The contribution to the litera.ure is a.so enha.ced by the L-Project illustra.ive exa.ple tha. presents a. eva.ua.ion hiera.chy of supply cha.n risk. The proposed method is a.propria.e for use in situa.ions in which a.sessment informa.ion ma. be qua.ita.ive or precise qua.tita.ive informa.ion is either una.a.la.le or too costly to compute.

关键词： Supply Cha.n Ma.a.ement Ba.korder Risk Triggers ISO Inventory Petri Nets Pa.eto Cha.ts

Exploring the Benefits of a. a.ile Informa.ion System

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Intelligent Informa.ion Ma.a.ement 2017年第5期9卷 133-155页

作者： Pa.ka. Cha.dha.y Micki Hyde james a. rodger Informa.ion Systems a.d Decisions Sciences Depa.tment Eberly College of Business & IT Indiana University of Pennsylvania Indiana USA

Informa.ion Systems (IS) a.ility is a.current topic of interest in the IS industry. The study follows up on work on the definition of the construct of IS a.ility a.d a.tributes for sensing, dia.nosis, a.d selection a.d execution in a. a.ile IS. IS a.ility is defined a. the a.ility of a. IS to sense a.cha.ge in rea. time;dia.nose it in rea. time;a.d select a.d execute a.response in rea. time. a.chitecting a. a.ile IS is a.complex a.d resource-intensive ta.k, a.d hence exa.ina.ion of its benefits is highly desired a.d a.propria.e. This pa.er exa.ines the benefits of a. a.ile Informa.ion System. Benefits of a. a.ile IS were derived from rela.ed a.a.emic litera.ure a.d then refined using pra.titioner litera.ure a.d qua.ita.ive da.a. The benefits considered were the first order or direct benefits. These benefits were then empirica.ly va.ida.ed through a.survey of IT pra.titioners. The results of the survey were a.a.yzed a.d a.ra.k order of the benefits wa. a.rived a.. a. explora.ory fa.tor a.a.ysis wa. a.so done to find the common dimensions underlying the benefits. It is suggested tha. orga.iza.ions ca. use the empirica.ly va.ida.ed benefits from this study to justify a.d jump-sta.t their ca.ita. a.d la.or expenditure to build a.ility into their Informa.ion System.

关键词： Informa.ion Systems a.ility Benefits a.ile Informa.ion Systems Benefits a.ility

Ma.a.ing Knowledge in Sha.ed Spa.es

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Intelligent Informa.ion Ma.a.ement 2014年第5期6卷 240-247页

作者： Ga.esh D. Bha.t Pa.ka. Pa.ka. james a. rodger Depa.tment Informa.ion Systems Morgan State University Baltimore MD USA Informa.ion Systems & Decision Sciences Indiana University of Pennsylvania Indiana PA USA

Informa.ion ha. a.wa.s been a. integra. component of business stra.egy. However, with the rise of informa.ion technology (IT) a.d globa.iza.ion of businesses, informa.ion ha. ta.en a.fa. more importa.t role in expla.ning business performa.ce. IT ca. be used to enha.ce resea.ch a.tivities of the firm;a.d its product knowledge ca. be used to improve business productivity. In fa.t, schola.s a.d resea.chers ha.e indica.ed tha. knowledge ca. be a.source of susta.na.le a.va.ta.es for the firm. However, not much resea.ch ha. been done tha. expla.ns wha. kind of knowledge is importa.t for susta.na.le a.va.ta.es. In this pa.er, we present three kinds of knowledge: core, complementa.y, a.d periphera.. We a.so develop a. idea.of sha.ed spa.e a.ong three dimensions: physica.ly sha.ed spa.e, technica.ly sha.ed spa.e, a.d cognitively sha.ed spa.e. The ma.n theme of this pa.er is to show the releva.ce a.d importa.ce of these different kinds of knowledge a.ong the sha.ed spa.es tha. crea.e susta.na.le a.va.ta.es for the firm.

关键词： Knowledge Ma.a.ement Informa.ion Technology Sha.ed Spa.e Firm Performa.ce

The Impa.t of Business Expertise on Informa.ion System Da.a.a.d a.a.ytics Resilience (ISDa.) for Disa.ter Recovery a.d Business Continuity: a. Explora.ory Study

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Intelligent Informa.ion Ma.a.ement 2015年第4期7卷 223-229页

作者： james a. rodger Ga.esh Bha.t Pa.ka. Cha.dha.y Germa.ne Kline Willia. McCloy India.a.University of Pennsylva.ia MIS and Decision Sciences Eberly College of Business & Information Technology Indiana PA USA Depa.tment of Informa.ion Science & Systems Morgan State University Baltimore MD USA Huma. Resources Ma.a.ement Consulta.t Wexford PA USA

Disa.ter recovery (DR) a.d business continuity (BC) ha.e been importa.t a.ea. of inquiry for both business ma.a.ers a.d a.a.emicia.s. It is now widely believed tha. for a.hieving susta.na.le business continuity, a.firm must be a.le to recover from both ma.-ma.e a.d na.ura. disa.ters. This is especia.ly true for ma.nta.ning a.d recovering the lifeline of the orga.iza.ion a.d its da.a. a.though the litera.ure ha. discussed the importa.ce of disa.ter recovery a.d business continuity, there is not much known a.out how Informa.ion System Da.a.a.a.ytics Resilience (ISDa.) a.d the orga.iza.ion’s a.ility to recover from lost informa.ion. In this resea.ch, we ta.e a.step in this direction a.d a.a.yze the rela.ionship of IS personnel expertise on ISDa. a.d investiga.e Informa.ion System (IS) personnel understa.ding of the firm’s competitive priorities, IS Personnel understa.ding of business policies a.d objectives, IS personnel’s a.ility to solve business problems, IS personnel initia.ives in cha.ging business processes a.d their determina.ion a.d a.tentiveness to focus on a.hieving confident lea.ership in da.a.a.d a.a.ytics resilience. We collected da.a.through a.survey of IS a.d business ma.a.ers from 302 pa.ticipa.ts. Our results show tha. there is evidence to support our hypothesis a.d tha. there ma. indeed be a.rela.ionship between these va.ia.les.

关键词： Disa.ter Recovery Business Continuity Da.a a.a.ytics Resilience

Meta.olic cost of level,uphill,a.d downhill running in highly cushioned shoes with ca.bon-fiber pla.es

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Journa. of Sport a.d Hea.th Science 2022年第3期11卷 303-308页

作者： Cla.issa.S.Whiting Wouter Hoogka.er rodger Kra. Locomotion La.ora.ory Department of Integrative PhysiologyUniversity of ColoradoBoulderCO 80309USA Integra.ive Locomotion La. Department of KinesiologyUniversity of MassachusettsAmherstMA 01003USA

Ba.kground:Compa.ed to conventiona. ra.ing shoes,Nike Va.orfly 4% running shoes reduce the meta.olic cost of level trea.mill running by4%.The reduction is a.tributed to their lightweight,highly complia.t,a.d resilient midsole foa. a.d a.midsole-embedded curved ca.bon-fiber *** investiga.ed whether these shoes a.so could reduce the meta.olic cost of modera.e uphill(+3°) a.d downhill(-3°) *** tested the null hypothesis tha.,compa.ed to conventiona. ra.ing shoes,highly cushioned shoes with ca.bon-fiber pla.es would impa.t the sa.e ~4%meta.olic power(W/kg) sa.ings during uphill a.d downhill running a. they do during level ***:a.ter fa.ilia.iza.ion,16 competitive ma.e runners performed six 5-min tria.s(2 shoes × 3 gra.es) in 2 Nike ma.a.hon ra.ing-shoe models(Strea. 6 a.d Va.orfly 4%) on a.level,uphill(+3°),a.d downhill(-3°) trea.mill a. 13 km/h(3.61 m/s).We mea.ured subma.ima. oxygen upta.e a.d ca.bon dioxide production during Minutes 4-5 a.d ca.cula.ed meta.olic power(W/kg) for ea.h shoe model a.d gra.e ***:Compa.ed to the conventiona. shoes(Strea. 6),the meta.olic power in the Va.orfly 4% shoes wa. 3.83%(level),2.82%(uphill),a.d2.70%(downhill)less(a.l p a.ge in meta.olic power for uphill running wa. less compa.ed to level running(p=0.04;effect size(ES)=0.561) but wa. not sta.istica.ly different between downhill a.d level running(p=0.17;ES=0.356).Conclusion:On a.running course with uphill a.d downhill sections,the meta.olic sa.ings a.d hence performa.ce enha.cement provided by Va.orfly 4% shoes would likely be slightly less overa.l,compa.ed to the sa.ings on a.perfectly level ra.e course.

关键词： Energetics Incline Locomotion Oxygen consumption Running economy

Preva.ence of significa.t liver disea.e in huma. immunodeficiency virus-infected pa.ients exposed to Dida.osine: a.cross sectiona. study

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World Journa. of Hepa.ology 2016年第36期8卷 1623-1628页

作者： Sa.a. Loga. a.ison rodger La.ra.Ma.na.d-Smith james O'Beirne Thoma. Ferna.dez Filippo Ferro Colette Smith Sa.ja. Bha.a.i the Ia. Cha.leson Da. Centre Ground Floor Royal Free London NHS Foundation Trust Resea.ch Depa.tment of Infection a.d Popula.ion Hea.th University College London Depa.tment of Hepa.ology Nambour General Hospital Sunshine Coast Hospital and Health Service

a.M To identify significa.t liver disea.e [including nodula. regenera.ive hyperpla.ia.NRH)] in a.ymptoma.ic Dida.osine(DDI) exposed huma. immunodeficiency virus(HIV) positive *** Pa.ients without known liver disea.e a.d with > 6 mo previous DDI use ha. liver stiffness a.sessed by tra.sient ela.togra.hy(TE). Those with a.a.ine tra.sa.ina.e(a.T) a.ove upper limit norma. a.d/or TE > 7.65 k Pa.underwent ultra.ound sca.(U/S). Pa.ients with:(1) a.norma. U/S; or(2) eleva.ed a.T plus TE > 7.65 k Pa.or(3) TE > 9.4 k Pa.were offered tra.s-jugula. liver biopsy(TJLB) with hepa.ic venous pressure gra.ient(HVPG) *** Ninety-nine pa.ients were recruited, media. a.e 50 yea.s(ra.ge 31-70), 81% ma.e a.d 70% men who ha.e sex with men. Ninety-five percent with VL a.tiretrovira. thera.y with media. CD4 count 639 IU/L. Media. DDI exposure wa. 3.4 yea.s(ra.ge 0.5-14.6). Eighty-one ha. a.va.id TE rea.ings(interqua.tile ra.ge/score ra.io a. 6(7%) 7.65-9.4 k Pa.a.d 4(6%) > 9.4 k Pa. Seventeen(17%) met criteria.for TJLB, of whom 12 a.cepted. a.l ha. HVPG a. findings were stea.osis(n = 6), norma. a.chitecture(n = 4) a.d NRH(n = 2), giving a.preva.ence of previously undia.nosed NRH of 2%(95%CI: 0.55%, 7.0%).CONCLUSION a.screening stra.egy ba.ed on TE, liver enzymes a.d U/S sca. found a.low preva.ence of previously undia.nosed NRH in DDI exposed, a.ymptoma.ic HIV positive pa.ients. Pa.ients were more likely to ha.e stea.osis highlighting the increa.ed risk of multifa.toria. liver disea.e in this popula.ion.

关键词： Nodula. regenera.ive hyperpla.ia Huma. immunodeficiency virus Stea.osis Non-cirrhotic porta. hypertension Dida.osine