Interactive Adaptive Systems (IAS) refer to interactive systems that alter their characteristics automatically according to the user’s needs. The IAS have emerged in several application domains and, accordingly, a high level of quality must be assured during their development. However, evaluating IAS still presents different challenges, as there are a set of unique characteristics that can impact the quality of such systems. Moreover, there does not exist a specific study to guide the assessment of IAS considering their main challenges based on an international standard. The main objective of this research concerns the proposition of an evaluation model suitable to the context of interactive adaptive systems, based on ISO/IEC 25040 standard. In the case study, an adaptive hypermedia system is evaluated following the evaluation process restructured from ISO/IEC 25040, with a focus on the first three activities of this process.