Spreadsheets Activity Based Computing 1 Appropriation 1 Artefacts 1 Average numbers 1 Business operation 1 COTS 1 Car rental systems 1 Case Study Contextual Dimensions 1 Case Study Contextual Factors 1 Case Study Research 1 Case Study in GSD 1 Change Management 1 Change Models 1 Collaboration Technologies 1 Collaboration Technologies in GSD 1 Collaborative Technologies 1 Collaborative technologies 1 Critical Incident Analysis 1 Customer demands 1 Derivative functions 1 Differential equations 1 Error messages 1 Evolution 1 Excel spreadsheets 1 Fleet operations 1 GSD Challenges 1 GSE 1 Global Requirements Engineering Challenges 1 Global Software Development 1