Case study research is one of the most widely used research methods in Information Systems (IS). In recent years, an increasing number of publications have used case studies with few sources of evidence, such as single interviews per case. While there is much methodological guidance on rigorously conducting multiple case studies, it remains unclear how researchers can achieve an acceptable level of rigour for this emerging type of multiple case study with few sources of evidence, i.e., multiple mini case studies. In this context, we synthesise methodological guidance for multiple case study research from a cross-disciplinary perspective to develop an analytical framework. Furthermore, we calibrate this analytical framework to multiple mini case studies by reviewing previous IS publications that use multiple mini case studies to provide guidelines to conduct multiple mini case studies rigorously. We also offer a conceptual definition of multiple mini case studies, distinguish them from other research approaches, and position multiple mini case studies as a pragmatic and rigorous approach to research emerging and innovative phenomena in IS.

案例研究是信息系统（IS）中最广泛使用的研究方法之一。近年来，越来越多的出版物使用证据来源很少的案例研究，例如每个案例进行一次访谈。虽然有很多关于严格进行多个案例研究的方法学指导，但目前尚不清楚研究人员如何能够对这种证据来源很少的新兴类型的多个案例研究（即多个小型案例研究）达到可接受的严格程度。在此背景下，我们从跨学科的角度综合了多个案例研究的方法指导，以开发一个分析框架。此外，我们通过回顾以前使用多个小型案例研究的 IS 出版物来校准这个分析框架以适应多个小型案例研究，以提供严格进行多个小型案例研究的指南。我们还提供了多个小型案例研究的概念定义，将其与其他研究方法区分开来，并将多个小型案例研究定位为研究信息系统中新兴和创新现象的务实且严格的方法。