ABSTRACT

Hyvrinen & Krki 1996). Additional training over-

head is required for each new system or system

update (Agarwal et al. 1996). In conjunction with

traditional procurement policy it is conceivable that

numerous systems can appear on one site (Ahern

2006), for example (Cylon 2009, Honeywell 2009,

Siemens 2009). Hatley et al. (2005) states that in the

absence of compatible hardware and communica-

tion protocols maintenance can become extremely

problematic as seamlessly integrating these systems

is an inefficient overhead.