A Cost–Benefit Evaluation Server for decision support in e-business

Approaching information system evaluation methodology and techniques: a comprehensive review

“…Techniques for evaluating IT/IS investment opportunities can be broadly categorised as either financial or qualitative (Bannister and Remenyi, 2000). Theoretical contributors to the IT/IS evaluation literature such as Gunasekaran et al (2001), Lin and Pervan (2003), Liu et al (2003), Ragowsky et al (2000) and Irani and Love (2002) have a tendency to move from the traditional evaluation methods due to the intangible aspects of IS benefits as well as the tangible ones (Al-Yaseen et al, 2010). Irani et al (2006) argue that traditional evaluation techniques are appropriate when the purpose of the investment is to reduce the operational cost, while a newer approach such as the balanced scorecard is more suitable if the purpose is to achieve strategic benefits.…”

Approaching information system evaluation methodology and techniques: a comprehensive review

“…Ex-post evaluation is performed when the system is live and functioning, using real rather than anticipated data. It can be used to justify investment (Al-Yaseen et al, 2010;Love and Irani, 2001;Irani and Love, 2002), to assess how well an IS project has met stakeholder expectations (Irani et al, 2005b), to measure the extent of IT use and user satisfaction (Sarosa and Zowghi, 2003), to estimate the direct cost of the system, to assess the tangible benefits of the system (Liu et al, 2003), to evaluate the actual impact of a system (Smithson and Hirschheim, 1998), to ensure that the system meets requirements (Irani, 2002), to measure the system's effectiveness and efficiency (Poon and Wagner, 2001), to assess the quality of programmes, to estimate indirect and other costs (Love and Irani, 2001) and to measure the quality of programmes (Eldabi et al, 2003). Ex-post evaluation provides the organisation with an assessment technique serving as a foundation of comparison with predicted ex-ante performance; the consequent organisational learning and feedback contribute to enhanced future decision making and benefit realisation (Al-Shehab et al, 2005;Gwillim et al, 2005).…”

Constraint-based brokering (CBB) for publishing and discovery of web services

“…Otherwise, the list of providers in the answer gives the possible candidates. If multiple providers satisfy a request, a cost-benefit evaluation is performed on these combinations by a Cost Benefit Evaluation Server [6,7] to determine the best one.…”

“…The Publish Coordinator separates the UDDI information from the submitted request <definitions> <constraints> <constraint operation_name="Buy"> <input_constraint> <name>item</name> <type>string</type> <keyword>ENUM</keyword> <valueList>{"Printer", "Computer", "Scanner"}</valueList> </input_constraint> <input_constraint> <name>price</name> <type>float</type> <keyword>RANGE</keyword> <valueList>[100.00..5000.00]</valueList> </input_constraint> <output_constraint> <name>orderno</name> <type>string</type> <keyword/> <valueList/> </output_constraint> <operation_constraint> <name>cost</name> <type>float</type> <keyword>LESSEQUAL</keyword> <valueList>3</valueList> </operation_constraint> </constraint> <service_constraints> <service_constraint> <name>basecost</name> <type>float</type> <keyword>EQUAL</keyword> <valueList>4</valueList> </service_constraint> </service_constraints> <interattribute_constraints> <interattribute_constraint> <name>IC1</name> <antecedence>Buy_in_item="Computer"</antecedence> <consequence>Buy_in_price>800</consequence> </interattribute_constraint> </interattribute_constraint> <name>IC2</name> <antecedence>Buy_in_priceprice>=3000.00</antecedence> <consequence>Buy_op_cost=1</consequence> </interattribute_constraint> </interattribute_constraints> </constraints> </definitions> After the publish operation is done, the provider receives an acknowledgement from the Publish Coordinator. Optionally, a service provider may use the user interface facility of a Cost Benefit Evaluation Server (CBES [7]) to register her preferences with respect to different values and value ranges of all the attributes specified in the The Registration Process Fig. 9 Information flow during the registration process service interface and implementation documents, and to provide cost information if it is available.…”