Submitted on: 30 July 2001.
Revised on: 05 October 2001.
Accepted on: 24 October 2001.
___________________Design Science---CAMBRIDGE UNIV PRESS
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Submitted on: 11 October 2021.
Revised on: 05 January 2022.
Accepted on: 04 February 2022.
___________________Design Science---CAMBRIDGE UNIV PRESS
Submitted on: 14 April 2020.
Revised on: 07 July 2020.
Accepted on: 02 August 2020.
___________________Design Science---CAMBRIDGE UNIV PRESS
Submitted on: 22 June 1999.
Revised on: 08 September 1999.
Accepted on: 05 October 1999.
___________________Design Science---CAMBRIDGE UNIV PRESS
Submitted on: 18 October 2005.
Revised on: 22 December 2005.
Accepted on: 20 January 2006.
___________________Design Science---CAMBRIDGE UNIV PRESS
Submitted on: 02 August 2014.
Revised on: 28 October 2014.
Accepted on: 29 November 2014.
___________________Design Science---CAMBRIDGE UNIV PRESS
Submitted on: 07 November 2021.
Revised on: 25 January 2022.
Accepted on: 25 March 2022.
___________________Design Science---CAMBRIDGE UNIV PRESS