Most of the Cultural Heritage (CH) objects in the museums are often stored under unsuitable climate conditions that can cause their degradation. The application of materials modelling to CH objects provides the opportunity to obtain unprecedented insight into degradation as well as means of prevention for specific classes of CH materials and systems. In this work we present the APACHE APP interface (UI) developed under the APACHE project.

The APACHE APP UI offers a web interface that aims at building and executing interoperable multi-scale physics-based simulation workflows and Machine Learning based models to predict the degradation of CH objects. Additionally, it enables controlling and monitoring the ongoing computational process and makes the results available to the APACHE decision support system that recommends possible corrective actions to be considered by curators. Here we address two user cases -  acrylic paints and paper enclosures - to demonstrate the APACHE APP and its lean interfaces based on SimPhoNy, including initial integration within the European Materials Modelling Marketplace, the MarketPlace, that facilitate interoperability across the various scales and codes.