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WEB SERVICES AND EMERGENT ORGANIZATIONS: OPPORTUNITIES AND CHALLENGES FOR IS DEVELOPMENT. Mauro Bello Maddalena Sorrentino Francesco Virili ECIS 2002, 7 June 2002. IS development goals. Emphasis on formal analysis and design User satisfaction Complete set of abstract requirements
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WEB SERVICES AND EMERGENT ORGANIZATIONS: OPPORTUNITIES AND CHALLENGES FOR IS DEVELOPMENT Mauro BelloMaddalena SorrentinoFrancesco Virili ECIS 2002, 7 June 2002
IS development goals • Emphasis on formal analysis and design • User satisfaction • Complete set of abstract requirements • Abstract requirements -> system specifications • Rigorous advance planning Assumption: Organizational stability Source: (Truex et al., 1999) Bello-Sorrentino-Virili - ECIS 2002 2
Analysis and Design Cost System replacement Maintenance Time Typical IS life cycle economy Source: (Truex et al., 1999) Bello-Sorrentino-Virili - ECIS 2002 3
Violating the stability assumption Stable systems in unstable organizations… stable systems drag The organization must adapt to both its environment and its outdated IT systems Bello-Sorrentino-Virili - ECIS 2002 4
Cost Analysis and Design Analysis and Design Cost System replacement Maintenance Maintenance Time Time IS life cycle economyin emergent organizations Web services? Source: (Truex et al., 1999) Bello-Sorrentino-Virili - ECIS 2002 5
The core ideas of Web services • Component based software • Don’t build: (re)use • Standardization for dynamic access via Web • Unique way, global search, wide choice Bello-Sorrentino-Virili - ECIS 2002 6
Extending IS functionalities:Yahoo! maps Bello-Sorrentino-Virili - ECIS 2002 7
Integration of map function:a proprietary solution Bello-Sorrentino-Virili - ECIS 2002 8
The Web Services architecture Service Registry Find Publish WSDL, UDDI WSDL, UDDI XML Service Requestor Service Provider Bind SOAP Bello-Sorrentino-Virili - ECIS 2002 9
Leveraging Web services:Expedia maps What is changed in IS development? Bello-Sorrentino-Virili - ECIS 2002 10
The research project • Objective • exploring the role of Web Services for IS development • Research questions • What is changing? What are the critical/success factors in implementation? • Focus • Banking industry • Integration of new functionalities; WS architecture • Methodology • qualitative approach, case study Bello-Sorrentino-Virili - ECIS 2002 11
Conclusion: open questions • Theoretical framework and methodology • Four-layered IS development “open” taxonomy framework by Iivari et al., (2001): is it flexible enough? • Is it powerful enough to interpret the cases and give an answer to the questions? • Alternative frameworks? • Case studies: what data to collect and how? Bello-Sorrentino-Virili - ECIS 2002 12
Emergent organizations • Truex, Baskerville and Klein (1999) “They include many of today’s commercial and governmental organizations” (no explicit characterization) • Deterministic frameworks • Organic vs/mechanistic paradigms (Burns and Stalker, 1961) • Contingency theory characterizations • (Galbraith, 1994) contextual variables • (Pugh et al., 1968) structural variables • Nondeterministic characterization: • Phenomenological perspective (Ciborra and Pugliese, 1997): “bricolage”, “second level learning” organizational design Bello-Sorrentino-Virili - ECIS 2002 16
IS development with Web Services • Building (Creating new Web Services) • Deployment (Publication on a service registry) • Running • Management Bello-Sorrentino-Virili - ECIS 2002 17
The case study • Banca del Gottardo, Lugano • 3d bank in Switzerland for private banking; 10 branches, about 80 workstations; Web browser front-ends • Selected Web Services application areas • Retail banking services (central host) • Local treasury management services (secondary host) • Exchange rate services management (gateway to an external system) • Project timing • Started in February 2002; end targeted November 2003 • First impressions • Web services development time comparable to using pure xml business logic • Higher code reusability • No care about security/performance issues Bello-Sorrentino-Virili - ECIS 2002 18