The ICT engineer and the systems analyst need to be members of the infrastructure design team as well as a part of all BDID phases. Their participation on the team, from the initial analysis through the final phase of postimplementation, is essential. Many of the activities of the ICT engineer, systems analyst, or other stakeholders may occur in parallel during the BDID phases, so it is important to have all appropriate technical staff involved early in the design process as experts who can speak to the viability of ICT infrastructure options. Even though technically oriented staff may be more involved in the design and implementation stages, their presence is beneficial in all phases.
The users, managers, and other internal and external stakeholders also need to be part of the team responsible for all phases of BDID. They provide valuable input, and even though this point was made earlier in this book, it's worth making again: Managers will usually tell you how a business process is supposed to work, while customers, users, and staff are more apt to tell you what actually occurs. Customers and users bring unique perspectives that make it essential that they are part of the team.