Referring to the four investment categories of Robson (1997), discuss in groups which category the following investments

Question:

Referring to the four investment categories of Robson (1997), discuss in groups which category the following investments would fit into:
(a) E-procurement system
(b) Transactional e-commerce web site
(c) Contract with ISP to host web server and provide Internet connectivity for staff
(d) Workflow system to manage complex customer orders (e.g. processing orders)
(e) Upgrading a company network.