This paper presents the design of a business-aligned information system (IS) from an actor-network perspective, viewing non-human intermediaries jointly as inscriptions and boundary objects. This field study presents a situated view of IS design over time. The design process is assessed through analyzing the intersected activities of a team of seven organizational managers who were defining changes to business processes, information technology, and organizational roles and responsibilities. This view of design presents a very different view to the rational, analytical process that is usually encountered in the IS literature. Instead of an orderly progression, we see a trajectory of design definition, as the team responds to the contingencies and instrumentalities that prevail during the course of a design inquiry. These managers enacted a new reality through their interactions with external stakeholders, senior managers, specifications, procedures, business documents, and IT systems. ...