What is Electronic Invoice

The Internet of Behavior (IoB) is expanding rapidly, offering valuable insights into users' behavior, interests, and preferences. The integration of requirements for ensuring business continuity faces certain constraints. This chapter presents a set of concerns about business continuity in software and explores the certification domain for invoicing software in Portugal. The concept of developing continuity by-design software and a methodological approach for business continuity management is introduced to enhance ICT and address sustainability concerns. This approach aims to foster innovative solutions and behavior optimization. Given the specificity of the issue under study, the methodology adopted was design science research. The main results include the development of artifacts that optimize the decision process for implementing electronic invoicing issuance and archiving, integrating the concept of continuity-by-design in the creation of resilient software. These efforts encompass multiple dimensions of sustainability and innovation, considering stakeholders' behavior.