Selecting software products can be underestimated. You face two sets of complexity - internal complexity from the business, stakeholders or requirements, combined with external complexity from the set of candidate products. A successful selection involves a mix of specialisms including change management, technical, commercial, contractual and due diligence skills.
Most organisations execute such projects infrequently, so don't carry this knowledge and expertise. This systematic method to evaluate, select and procure off-the-shelf solutions augments (with highly specific and relevant techniques and philosophies) your normal approaches to project sponsorship and management, decision-making, technology management, due diligence, procurement and change management. The method is sector-agnostic and was first applied to cloud providers in 2002.