When establishing a new shared services model or expanding on an existing one, business, finance and shared services leaders may seek examples of shared services models. Some examples show work retained in-house because they require direct customer or investor interaction, specific business or product knowledge, or because they have the potential to put sensitive information at risk. In-house work may include legal, investor relations, tax, treasury as well as planning and analysis. Other examples of shared services models show work outsourced because the work is process-driven, routine and easy to teach. Outsourced work may include accounts payable, T&E reimbursement and payroll. Before adapting your approach based on examples of shared services models, it is important to evaluate your current processes with regards to their level of complexity and their degree of commonality across multiple business units. Key questions you should ask yourself are: How well understood and documented are the management and operational activities associated with each process? How mature is each process and how much will the organisation benefit from process improvements? Is there any resistance from business units and local IT?