Information system (IS) procurement in the public sector is a strictly legislated process where different worries and concerns emerge already in its early phases. They may later lead to hazardous and unwanted outcomes when procuring, acquiring, or implementing the IS. To reduce unsatisfactory outcomes and fears and improve public IS procurement, we thus need to understand different concerns and their effects. In this paper, we present a qualitative single case study where different concerns emerge in the market consultation documentation of a public IS procurement. We identify and analyze the concerns by using the grounded theory approach. We then reflect them with the public IS procurement challenges and the European Union (EU) procurement legislation to understand their influence in public procurement. This provides twofold outcomes: a list of concerns and a model that illustrates their interrelations and a long impact chain within the procurement documentations. The model underlines the impacts of different concerns on IS procurement in general, and on system requirements and vendor selection in particular. Especially the role of requirement specifications is emphasized as it largely defines the vendor selection and the contract.

This research did not receive any grant from funding agencies in the public, commercial, or not-for-profit sectors.

公共部门的信息系统 (IS) 采购是一个严格立法的过程，在其早期阶段就已经出现了不同的担忧和担忧。之后在采购、获取或实施 IS 时，它们可能会导致危险和意外的结果。为了减少不满意的结果和恐惧并改善公共信息系统采购，我们需要了解不同的关注点及其影响。在本文中，我们提出了一个定性的单一案例研究，其中在公共信息系统采购的市场咨询文件中出现了不同的问题。我们使用扎根理论方法识别和分析关注点。然后，我们通过公共信息系统采购挑战和欧盟 (EU) 采购立法反映它们，以了解它们对公共采购的影响。这提供了双重结果：一份关注事项清单和一个模型，说明它们之间的相互关系以及采购文件中的长期影响链。该模型强调了不同关注点对一般信息系统采购的影响，特别是对系统要求和供应商选择的影响。特别强调了需求规范的作用，因为它在很大程度上定义了供应商选择和合同。

这项研究没有从公共、商业或非营利部门的资助机构获得任何资助。