The Benefits of Adopting an Enterprise Architecture
Many institutions have had thirty years or more of increasing IT investment, across a wide range of business disciplines and through numerous technology evolution cycles. As a result, core systems today are often made up of different applications, platforms, technologies and architectural models. For instance, a large number of firms will have back-office mainframe legacy applications, perhaps built on IBM’s IMS or CICS transaction processing systems. There may be local, UNIX-based applications running in departmental servers and Windows-based ones on the corporate desktops. Datastores may range from flat file systems such as VSAM, hierarchical stores using IMS-DB and relational databases like Oracle or DB2.
But it all works – so why fix it? Sure, software architects moan about the lack of clean interfaces and the disorganised state of the overall IT implementation, but does this really matter? The last thing businesses need right now are heavy investment projects to simply deliver what they have today but with more ‘architectural purity’.
In fact, there is far more to the concept of an enterprise architecture than ‘architectural purity’. This Illuminatus Insight looks at this area and the likely benefits to be obtained from a more structured approach to IT asset deployment.