Typical Infrastructure

Martin Walker

I have not as yet noticed by far the most remarkable feature in the natural history of this archipelago; it is, that the different islands to a considerable extent are inhabited by a different set of beings. My attention was first called to this fact by the Vice-Governor, Mr Lawson, declaring that the tortoises differed from the different islands, and that he could with certainty tell from which island any one was brought. I did not for some time pay sufficient attention to this statement, and I had already partially mingled together the collections from two of the islands. I never dreamed that islands, about fifty or sixty miles apart, and most of them in sight of each other, formed of precisely the same rocks, placed under a quite similar climate, rising to a nearly equal height, would have been differently tenanted.

– Charles Darwin, The Voyage of the Beagle

This chapter will describe the main types of systems (and the methods by which they communicate) that can be found in any significantly sized capital markets business. If you are familiar with the full set of core systems for two or more banks, this chapter is useful mostly as a reference. If you only have